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The Year 7 dip: why enthusiasm fades – and how to rebuild it

7 July 2026

Every secondary teacher knows the feeling. A Year 7 class arrives in September full of enthusiasm — hands up, eyes forward, eager to please. Fast forward a few months, and the same class can feel markedly different: quieter, less responsive, occasionally resistant.

Writing in TES, David Thomas, CEO of Axiom Maths, describes this familiar experience. His research suggests that, by the summer of Year 7, students are significantly less likely to enjoy Maths than they were in Year 6. What is striking is not just that this happens, but how quickly — and how unevenly.

Yet as many classroom teachers will recognise, this pattern is not confined to Maths. It can affect Computing too, albeit playing out on a slightly different timeline.

When the shine wears off

Thomas identifies the spring term, between Christmas and Easter as the critical point where engagement drops most sharply. With multiple lessons a week, Maths provides fertile ground for this decline to emerge quickly.

In Computing, Craig and Dave suggest the change is often delayed. With fewer curriculum hours, students tend to sustain their enthusiasm through Year 7. But the dip still comes.

Year sevens are generally keen all year, but it’s when they come back in Year 8 that you really notice the shift. They’re more comfortable in the school and more complacent about learning.

This is a useful reminder, the issue is not tied to a specific term, but to a broader transition. As students settle into secondary school, the initial novelty fades and deeper challenges begin to surface.

The balancing act teachers know too well

One of Thomas’s key findings centres on the tension between repetition and pace. Teachers must reconcile wildly different starting points, often reteaching content to establish a common foundation.

In principle, this is sound pedagogy. In practice, it can be deeply frustrating for students with some thinking, “We’ve already done this — why are we still here?” Others are completely bamboozled and trying to keep up.

In Computing, this disparity can feel even more pronounced. Pupils arrive with highly variable experiences — from those who have explored coding in depth to those who have barely used a keyboard. The result is a classroom where boredom and anxiety coexist.

The danger lies in assuming that this tension is unavoidable. While it may not be fully solvable, thoughtful planning, adaptive tasks, extension pathways, low-threshold/high-ceiling activities can mitigate its impact.

 

Confidence: the slow erosion

If the mismatch of difficulty is the spark, then loss of confidence is the slow-burning fire. Thomas’s research highlights a growing confidence gap — one that emerges before any clear attainment gap. Teachers see this every day, though often in subtle ways. In Year 7, when you pose a question to the class, it’s “me, me, me” — hands shooting up. By Year 8, some students just… stop. They don’t want to put themselves out there anymore.

What changes is not just academic confidence, but social awareness. Participation becomes risky. It is no longer about impressing the teacher, but about fitting in with peers.

This creates a difficult tension. The very behaviours that support learning — asking questions, making mistakes, persevering — are precisely those that can feel socially uncomfortable. Left unchecked, this quiet withdrawal becomes self-reinforcing. The more you think students don’t want to engage, the less you push it, and the less you push it, the less they do. It becomes a downward spiral.

Classroom climate: more than behaviour management

Thomas also identifies a decline in classroom climate — reduced collaboration, less effective listening, and increased disruption. This is not simply a behaviour issue, but a cultural one. Being “too cool for school” changes everything.

Once that shift takes hold, even well-planned lessons struggle to land. Group work becomes harder to sustain. Discussion loses its richness. Students who want to engage can feel inhibited by those around them. However, sustaining high expectations is essential, even when it feels difficult. The moment you lose heart, they lose heart.

The unequal recovery

Perhaps the most concerning aspect of Thomas’s findings is what happens next. Some students begin to re-engage — but this recovery is not evenly distributed. More advantaged pupils are more likely to regain enjoyment. Others remain disengaged, widening the gap in both attitude and, eventually, attainment.

Teachers recognise this pattern, even if they do not always name it explicitly. Some pupils find their way back through extracurricular activities or additional support. Others drift further away. For a long time, both teachers and students have responded to this by asking whether the curriculum is truly fit for purpose for all learners.

This tension sits at the heart of inclusive teaching. The goal is not universal passion, but universal opportunity.

Beyond “teenagers being teenagers”

A common explanation for declining motivation is adolescence itself. Hormones, identity, social pressures all play a role, but we should caution against using it as a catch-all explanation. Instead, perhaps there is a deeper mismatch between student needs and school structures.

As adolescents develop, they increasingly seek:

  • autonomy — choice and independence;
  • competence — a sense of progress and success;
  • belonging — connection and identity.

Yet, secondary schools can often drift in the opposite direction creating environments that are controlling, performance-focused which results in spoon-feeding and impersonal. Then we’re surprised when motivation drops.

This is not an indictment of individuals, but of systems. Teachers operate within demanding structures — large classes, heavy workloads, constant pressures. It is easy to fall into cycles of survival rather than reflection. But awareness is a starting point.

Rebuilding the spark

The motivation dip is not inevitable. Nor is it irreversible. If anything, the research and classroom reflections suggest that there is a crucial window — particularly towards the end of Year 7 where small, deliberate shifts can have lasting impact.

Some principles stand out:

  • Protect confidence early
    Notice the students who have gone quiet. Create opportunities where success feels visible and safe.
  • Guard the classroom culture
    Maintain high expectations for participation and collaboration, even when it is challenging.
  • Keep the subject ‘alive’
    Don’t strip out engaging activities simply because they are harder to manage.
  • Offer meaningful challenge
    As Thomas argues, the answer is not easier content, but richer experiences — problems that genuinely engage curiosity.

A profession worth backing

Ultimately, this is as much about teachers as it is about students. Sustaining engagement requires energy, reflection and, at times, resilience. Teaching is not a theoretical exercise. It is lived, complex, and often messy, but within that complexity lies opportunity. The patterns we see are not fixed; they are shaped by the environments we create. While no classroom is perfect, every classroom has the potential to shift the trajectory. The Year 7 dip may be predictable, but it is also preventable.

Want to know more? Check out our ‘At the chalk face’ episode on YouTube.

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The social media debate: What it really means for schools

20 June 2026

There is a growing sense that something significant is about to change in how young people access the online world. Political rhetoric has intensified, pressure from parents has mounted, and governments—both in the UK and abroad—are increasingly signalling that intervention is inevitable. For secondary school teachers, this raises an important question: what will all of this actually mean in the classroom?

At first glance, the issue appears straightforward. Social media is linked to harm; therefore, restrict access. But as with so many aspects of education and technology, the reality is far more complex.

Good intentions, complicated realities

It is difficult to argue with the motivations behind potential reforms. Concerns around online challenges, grooming, abuse, and the wider impact on young people’s mental health are real and well documented. Some medical bodies have even drawn comparisons between social media and smoking, citing links to sleep deprivation, anxiety, and increased exposure to harmful content.

Politically, the tone is clear. There is a sense that action is no longer optional. The idea of a “game changer” has been publicly floated, suggesting that incremental change may no longer satisfy public demand for stronger safeguards.

However, international examples show how difficult implementation can be. In Australia, where restrictions have already been attempted, young people have continued to access social media through workarounds. Criticism has also emerged over which platforms were included or excluded from bans, highlighting a deeper issue: regulation is only as strong as its definitions—and those definitions are increasingly unstable.

The definition problem

At the heart of the debate lies a deceptively simple question: what is social media?

A decade ago, the answer might have seemed obvious. Platforms like Facebook, Instagram, or Snapchat. Today, that clarity has disappeared. The boundaries between “social” and “educational” technology are blurring at speed.

Consider the following:

  • A large language model providing conversational feedback to a student.
  • An AI tutoring platform offering personalised guidance.
  • A shared Word or Google document used collaboratively.
  • An educational YouTube video with comments enabled.
  • A revision platform encouraging regular engagement.

All of these involve interaction. All enable communication, either with other users or with AI systems that simulate human response. At what point does that interaction become “social”?

This is not simply a philosophical question; it has practical consequences. If legislation attempts to restrict “social media”, it risks sweeping up tools that are now integral to teaching and learning. Increasingly, the same features that make platforms engaging—interactivity, collaboration, responsiveness—are precisely the features that make them pedagogically valuable.

The uncomfortable truth is that there is no clear line anymore. The category of “social media” has expanded to the point where it overlaps with almost all digital tools students use.

The teacher reality

For teachers, the debate is not really about banning phones. Schools have already grappled with that issue in various forms. The emerging conversation is about banning or restricting software—and that presents a very different set of challenges.

In practice, stricter controls could bring a range of unintended consequences:

  • Safeguarding complexities: Age verification systems may be introduced, potentially requiring students to provide personal data or biometric information.
  • Consent fatigue: Schools could face increasing administrative burdens as they manage permissions, accounts, and compliance requirements.
  • Onboarding friction: Even simple tasks, like signing up to a revision platform, may become more cumbersome, reducing lesson efficiency.
  • Digital overload: Teachers may spend more time troubleshooting access issues than delivering learning.

Anyone who has tried to get a full class logged into an online platform understands how fragile that process can be. Add layers of verification, restrictions, or blocked functionalities, and the risk is clear: many teachers may simply abandon these tools altogether.

This raises a critical question. At what point does protection begin to undermine the very educational experiences it is meant to support?

The risk of unintended consequences

There is also a broader concern that outright bans could push behaviour underground rather than eliminate it. If students are determined to access social platforms—as evidence suggests they are—they will find alternative routes.

These may be less visible, less regulated, and ultimately more dangerous.

For example, a shared document or file link can quickly become a hidden communication space. Without oversight, such environments could replicate the very risks that legislation is trying to address, but without the safeguards that established platforms at least attempt to provide.

This is the paradox at the centre of the debate: restricting access may reduce exposure in theory, but in practice it may simply relocate it to harder-to-monitor spaces.

Possible directions for change

While no single solution has emerged, several approaches are being explored. These range from technological controls to cultural shifts in behaviour.

Some proposals include platform-level changes such as removing auto-play or endless scrolling features, both of which are designed to increase user engagement. Others involve structural interventions, like age verification at the device or app store level, or even curfews that limit overnight usage.

There is also increasing interest in reframing the issue as a public health concern. Encouraging conversations about screen time in medical settings, collecting data for research, and educating families about usage patterns all point towards a more holistic approach.

At the same time, there are calls to place greater responsibility on technology companies themselves—requiring them to design safer systems rather than relying solely on user behaviour or external regulation.

Where does this leave schools?

For now, uncertainty remains. Yet one thing feels certain: the direction of travel is towards increased regulation, not less.

In this context, schools may need to hold onto a few key principles:

  • Digital literacy remains essential. Even if access is restricted, understanding online environments will still be crucial for young people.
  • Education cannot rely solely on prohibition. Students will encounter these technologies eventually, and they need the skills to navigate them safely.
  • Balance will be critical. The challenge is not just to protect students, but to do so in a way that preserves the benefits of digital learning.

Ultimately, the debate is not just about social media, it’s about how we prepare young people to live in a digital world that is constantly evolving.

A conversation worth having

Perhaps the most important takeaway is that there are no easy answers. The question is not whether young people should be protected online, there is universal agreement on that point. The question is how to do so effectively, without creating new problems in the process.

For teachers, this is not an abstract policy discussion. It is a daily reality, lived out in classrooms where technology is both a powerful tool and a potential source of risk.

As the conversation continues, one question remains open, and vital:

Where should we draw the line between learning tools and social platforms?

It is a question that policymakers, educators, parents, and students will need to answer together.

Want to know more? Check out our ‘At the chalk face’ episode on YouTube.

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Why Do So Many Teachers Leave Teaching?

17 June 2026

If you ask almost any secondary teacher in England why colleagues are leaving the profession, you’ll likely hear a familiar answer: “It’s not the teaching — it’s everything around it.”

That simple line captures a much deeper and more complex story. One that blends policy, workload, school culture, and personal experience. To really understand it, we need to go beyond statistics and look at the lived reality of teachers themselves.

Two such stories, that of Craig and Dave, former teachers turned education resource providers offer a powerful lens through which to explore the issue.

The big picture: what the data tells us

Across Department for Education research and national surveys, five consistent drivers explain why teachers leave:

  • Excessive workload.
  • Stress and poor wellbeing.
  • Pupil behaviour challenges.
  • Pay and financial considerations.
  • Leadership, accountability, and working conditions.

At the top of that list, by a considerable margin, is workload. Around 90% of teachers considering leaving cite it as a factor, and it’s not difficult to see why.

The job is no longer just teaching. It is planning, marking, data entry, behaviour logging, meetings, emails, evidence-gathering, and more. Individually, each demand is reasonable. Together, they become overwhelming.

But statistics only take us so far. What does this actually feel like?

Craig’s story: when the job becomes too much

Craig didn’t go into teaching expecting to leave. Quite the opposite, he loved it. He progressed quickly, becoming head of department and taking on additional responsibilities. On paper, it looked like success.

But beneath the surface, something was changing.

“I didn’t notice it happening… it chipped away at me.”

The workload wasn’t just heavy, it was relentless. Leadership expectations, accountability measures, and administrative tasks accumulated to the point where prioritising became impossible. At one stage, Craig found himself asking his line manager a simple question:

“What do you want me to do first?”

The answer? Everything.

This is exactly what the research highlights: workload isn’t just about long hours, it’s about competing, often unrealistic demands. Teachers are expected to plan meticulously, mark extensively, track data, attend meetings, respond to initiatives, provide evidence and react to constant accountability pressures all at once.

Eventually, the impact became personal. Craig describes a gradual slide into stress, anxiety, and ultimately medically diagnosed depression. Crucially, it wasn’t the classroom that caused it.

“The bit I loved, the teaching, I was doing less and less of.”

This aligns closely with national findings: many teachers report that they still love teaching itself but cannot sustain the conditions around it.

At his lowest point, Craig found himself walking into lessons unprepared. Not through laziness, but exhaustion.

“What did we do last lesson? … That wasn’t for them, it was for me.”

For a conscientious teacher, that moment is deeply uncomfortable and it creates a vicious cycle. Overwork leads to underperformance, which leads to guilt, which worsens wellbeing.

Eventually, Craig had to step away from full-time teaching, but his story doesn’t end there.

When stripped back to just teaching — no meetings, no excessive admin, no leadership burden — he rediscovered what he loved.

“I fell back in love with the profession.”

That contrast is telling.

Dave’s story: When leadership and culture don’t align

Dave’s journey out of teaching took a different path, but points to another key factor in teacher attrition: leadership and working culture.

As an experienced assistant headteacher, Dave was at a career crossroads, considering promotion to deputy head. But a series of interactions made him question whether he wanted to continue.

One moment, in particular, stood out: a meeting about attendance.

Dave wanted to discuss strategies, student stories, and impact. His headteacher wanted a number — nothing more.

“What’s the percentage attendance in Year 8?”

Repeatedly, the conversation was reduced to data rather than professional dialogue.

“A number’s arbitrary… what matters is how we improve it.”

This clash reflects a broader issue identified in research: high-stakes accountability systems can shift focus away from meaningful teaching and leadership toward metrics, compliance, and evidence.

For Dave, it wasn’t just disagreement, it was a signal.

“I knew… I couldn’t work for this man anymore.”

Leadership style and professional trust are critical. When teachers feel reduced to data managers rather than educators, dissatisfaction grows.

Research supports this: lack of autonomy, rigid systems, and poor leadership culture are major contributors to teachers leaving the profession. Teachers want to feel trusted, valued, and able to exercise professional judgement.

When that’s missing, even senior leaders walk away.

It’s not just one thing, it’s the accumulation

What both stories make clear, and what the evidence strongly supports, is that teachers rarely leave for a single reason.

It’s not just workload.
It’s not just stress.
It’s not just leadership.

It’s the accumulation.

Consider a typical week:

  • Teaching multiple classes across different year groups.
  • Planning lessons and resources.
  • Marking hundreds of books or assessments.
  • Logging behaviour incidents and following up.
  • Entering and analysing data.
  • Attending meetings and CPD sessions.
  • Communicating with parents.
  • Preparing for inspections or internal reviews.

Now layer on emotional demands: supporting students, managing behaviour, dealing with safeguarding concerns.

Then add accountability pressures and limited recovery time.

The result? A job that routinely stretches into 50–60+ hours per week, spilling into evenings and weekends.

As Craig described, the consequence is not just tiredness, it’s a gradual erosion of capacity, motivation, and wellbeing.

Why teachers stay — until they can’t

One of the most striking points from both Craig and Dave’s stories is that they didn’t leave because they didn’t care. They left because they cared too much to continue as they were.

Craig and Dave both felt “trapped”. Aware that teaching offered:

A stable salary.

A strong pension.

Job security.

Familiarity.

It also required a unique skillset, and how easy was this to transition into other sectors?

These are powerful anchors. For many teachers, they delay the decision to leave, but when the job begins to affect health, relationships, and self-worth, those anchors can start to feel like weights.

So… why do so many teachers leave?

Because the job, as it is currently experienced by many, has drifted away from its core purpose.

Teaching should be about:

Inspiring students.

Explaining ideas.

Building relationships.

Making a difference.

Instead, too often it becomes:

Managing systems.

Producing evidence.

Meeting targets.

Surviving workload.

One thing very clear. Teachers don’t leave because they stop loving teaching. They leave because the conditions make it unsustainable.

A final thought

Both Craig and Dave still work in education. They still visit schools, support teachers, and engage with students. They didn’t leave education — they left the full-time classroom as it had become.

Perhaps that’s the most important reflection of all. If we want to retain great teachers, the question isn’t “Why are they leaving?” It’s “What has changed that made staying so difficult?”

Want to know more? Check out our ‘At the chalk face’ episode on YouTube.

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When AI plays the music: The Velvet Sundown hoax that fooled the internet

5 March 2026

What happens when an AI band goes viral?

Imagine stumbling across a dreamy indie band on Spotify with 850,000 monthly listeners. They’ve got a verified profile, ethereal lyrics, and moody cover art — everything you’d expect from the next big thing in alternative music. Except… they’re not real.

Welcome to the curious case of The Velvet Sundown — an AI-generated band that tricked listeners, baffled journalists, and highlighted some big questions at the intersection of technology, music, and copyright law.

The fake band with real fans

On the surface, The Velvet Sundown seemed like a typical four-piece: Gabe, Lennie, Milo, and Rio. But internet sleuths noticed something odd — no live gigs, no social media, no interviews. Even the “press photo” looked suspiciously AI-generated.

Eventually, a supposed spokesperson admitted the entire band (and he himself) were fakes — creations built around music generated using an AI tool called Suno. Think ChatGPT for sound: you describe a vibe, it creates a song. Vocals, lyrics, melody — all fully synthetic.

Streaming algorithms, blurred realities

What’s worrying is how The Velvet Sundown thrived on Spotify’s algorithm, gaining thousands of listens through curated playlists and auto-play suggestions. Spotify hasn’t taken them down, and CEO Daniel Ek has confirmed there’s no intention to ban AI-generated music — unless it impersonates a real artist. But when even tech-savvy users can’t tell the difference, where’s the line?

Meanwhile, real musicians are furious. Artists like Elton John and Dua Lipa have pushed for stronger copyright protections in the UK, arguing that AI music models often rely on scraped human-made content. But government action? Still “under consultation”.

Does it matter who makes the music?

If you’re listening to lo-fi study beats or ambient playlists, do you care if the artist has a pulse? As AI becomes more convincing, it’s a real question — especially for young people growing up in a digital world where authenticity is often optional.

As Professor Gina Neff from Cambridge points out, we’re living in an age where deepfakes, AI influencers, and virtual personas make it increasingly hard to separate the real from the artificial. Music is just one part of that bigger picture.

Want the full story and a few laughs along the way?  Watch the full video to explore AI in music and more fascinating computer science concepts.


For more Lesson Hacker videos, check out the Craig’n’Dave YouTube playlist HERE.

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Does anyone still use low-level code?

14 January 2026

In an age where everyone seems obsessed with the latest AI chatbot or shiny new high-level programming language, you might wonder: Does anyone still use low-level code? 

The short answer: Yes. 

The long answer: YEEEEEEEEEEEEEES.

While most of the tech world is busy creating chatbots that sound like they’ve just devoured Freud and downed a Red Bull, somewhere in a dimly lit corner, a humble C developer is quietly making sure your toaster doesn’t launch into orbit.

The hidden power of low-level programming

Low-level programming is far from dead. In fact, it’s the invisible force quietly running the technology you use every day. Your car, your washing machine, the plane you’re not on because you spent your money on a new GPU — all of these rely on software written in C, C++, Rust, or even intimidating assembly language. (If you’ve ever seen assembly code, you’ll know it looks like someone tried to type while fending off a raccoon.)

You might be thinking, “Isn’t AI coding now? What’s the point?” Well, here’s the catch — someone still has to build the very systems that AI runs on. Think frameworks, compilers, virtual machines, and device drivers. AI agents don’t know how to manage memory in C, nor do they understand that using eval() like confetti is a bad idea.

Why learning low-level code matters

Learning low-level programming is like learning to fix an engine while everyone else is just learning to drive Teslas. Sure, a Tesla can drive itself… until it doesn’t. Then guess who they call? Not the AI coder — they call you.

If you’re fascinated by game engines, hardware drivers, or compilers, keep going. You’re not outdated — you’re underappreciated. When automation takes over many roles, your skills will remain invaluable because someone has to debug those GPIO pins robots can’t touch.

Stay low. Stay powerful. 

Curious to learn more about the importance of low-level programming?

Watch the full Lesson Hacker video to explore endianness and more fascinating computer science concepts. 

For more Lesson Hacker videos, check out the Craig’n’Dave YouTube playlist HERE.

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Should AI have morals?

What happens when artificial intelligence starts flattering us instead of challenging us?

13 January 2026

Artificial intelligence is evolving fast — but as it gets friendlier, should we be worried it’s losing its grip on the truth?

We’re exploring a hot topic in both computer science and ethics: Should AI be built with morals, or is it enough for it to make you feel good? 

Spoiler alert — if your chatbot applauds your worst ideas, it might be time for a software update.

Let’s start with ChatGPT, specifically the GPT-4o update. This version of OpenAI’s popular AI assistant had one job: make users happy. It did this so well, it started agreeing with everything. People shared examples of it praising clearly harmful behaviour, reinforcing conspiracy theories, and even applauding dodgy life choices. Why? Because its success was measured on positive user feedback — essentially, how many people responded with smiley face emojis.

The result? A hype man in silicon form. Warm and fuzzy? Yes. Useful? Not so much. 

Eventually, OpenAI admitted it had gone too far and rolled back the overly agreeable behaviour. But the episode raised big questions about the purpose of AI. Should it be emotionally supportive at all costs, or should it sometimes challenge us?

Then there’s GrokElon Musk’s “anti-woke”, “truth-seeking” AI launched via X (formerly Twitter). Despite the branding, Grok began doing something unexpected: it corrected false claims, backed up scientific consensus, and even fact-checked Musk himself. It wasn’t trying to be political — just accurate. But that honesty proved controversial, especially for users who expected Grok to reinforce their existing views. Apparently, it’s all fun and games until the AI doesn’t flatter your worldview.

So, what do we actually want from AI? Is it more important that it makes us feel good — or helps us be better?

On one hand, supportive AIs can offer comfort and validation. But when they reinforce false beliefs or encourage risky decisions, the consequences can be serious. On the other hand, AIs that challenge misinformation and offer correction might feel uncomfortable in the moment — but they can help us grow. Just like that one teacher who was a little harsh with the red pen, but made you a stronger thinker.

This is about more than software — it’s about trust, responsibility, and the future of technology in society. Because if we build AI to agree with us no matter what, we’re not building intelligence. We’re building digital yes-men. And they might just smile and nod while we walk ourselves off a cliff.

So, where do you stand? 

Should AI be polite and supportive — or truthful, even if it stings?

Watch the full video here to explore the debate in full.

For more Lesson Hacker Videos, check out the Craig’n’Dave YouTube playlist HERE.

Be sure to visit our website for more insights into the world of technology and the best teaching resources for computer science and business studies.

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What is vibe coding? Is it the future of programming?

Welcome to the “tell, don’t type” era of coding

12 January 2026

If “vibe coding” sounds like something you’d do while lounging in a beanbag with lo-fi beats and herbal tea, you’re not alone. But despite its chilled-out name, vibe coding is a seriously powerful development method—and it’s changing the way we write software.

At its core, vibe coding means using plain English to tell an AI what you want your program to do. Instead of hammering out every loop, condition, and semicolon, you type something like: “Make a form that submits user data to the backend and shows a thank-you message.” The AI interprets your request and generates the code for you—sometimes even with documentation.

This magic happens thanks to large language models like GPT, which have been trained on vast amounts of code. They break your prompt into tokens, map those to patterns they’ve seen before, and predict the most likely next tokens to generate full functions, boilerplate files, and more. Think autocomplete on steroids.

What’s more, modern AI tools like Copilot, Cursor, and Replit are context-aware. They don’t just spit out code snippets—they understand your project structure, track variables across files, and can even refactor code you’ve long forgotten you wrote.

Of course, vibe coding isn’t flawless. The AI can “hallucinate” functions that don’t exist, or write code that looks great… until it crashes. It’s like having a super-keen intern: quick, clever, but occasionally wildly overconfident.

Still, for speeding up development, brainstorming solutions, or simply avoiding another late-night regex breakdown, vibe coding is a game-changer. You bring the ideas. The AI brings the syntax.

Watch our Lesson Hacker video here to explore more.

For more Lesson Hacker videos, check out the Craig’n’Dave YouTube playlist HERE.

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Fail safeguarding if phone used in school?

9 January 2026

In October 2025, the political debate around mobile phones in schools escalated when the Shadow Education Secretary, Laura Trott, wrote to HM Chief Inspector Sir Martyn Oliver, urging Ofsted to treat pupil smartphone use as a safeguarding failure. In her letter, Trott argued that while Ofsted’s new inspection toolkit acknowledges phone policies, it “does not go far enough”, stating: “Smartphones are not just a behaviour management issue; they present clear safeguarding risks” and that schools where pupils are routinely able to access harmful content via phones should therefore fail the safeguarding check. She went further, comparing unrestricted phone access to other clear safeguarding breaches: “If there was a school where routinely we knew that kids could access pornography, we would obviously think that a safeguarding issue. We should see smartphones in the same light”. This proposal has prompted significant concern across the sector, not least because Sir Martyn Oliver – while personally supportive of strong restrictions, has so far stopped short of agreeing that the mere presence of phones should automatically result in a safeguarding failure. 

Phones, platforms, and pedagogy: navigating mobile tech in today’s schools 

A growing body of research shows that unrestricted mobile phone access undermines attention, memory, and overall learning quality. Meta-analyses demonstrate that mobile phone distractions significantly reduce immediate recall from lectures and readings, while digital environments with competing stimuli—notifications, messaging, or background media—impair reading comprehension and cognitive focus. These findings strongly support the case for tight restrictions, which aligns with Ofsted’s renewed emphasis on leaders “thinking carefully” about phones as part of behaviour and safety. Although Ofsted stops short of endorsing an automatic safeguarding failure for phone visibility recommended by the Conservatives, it explicitly backs headteachers who ban phones during the school day to protect learning time and meaningful peer interaction. 

The balance of evidence suggests that, pedagogically, a well implemented school day ban (with controlled, purposeful exceptions) offers the clearest benefit. Policies that reduce constant switching between tasks also mitigate the cognitive toll of multitasking, helping students recover and maintain focus more effectively. 

Why would students need a phone in school at all? 

Even though phones can distract, there are legitimate reasons why some pupils may need access—albeit in a structured, limited form. Phones often serve essential logistical and safety needs, enabling contact around transport issues or emergencies. They also function as accessibility tools: many students depend on smartphones for text to speech, translations, digital textbooks, reading supports, or authentication into school systems. 

Beyond accessibility, modern smartphones contain sensors, cameras, and processing power enabling curriculum-enhancing tasks such as fieldwork photography, AR explorations, or data collection. These uses are credible educational moments when they are planned intentionally by teachers, not initiated casually by students.  

The key distinction is between possession and use. Schools can allow the former while tightly regulating the latter, ensuring phones do not become an always available distraction. 

The educational benefits of using phones in school 

When used deliberately, smartphones can provide meaningful educational value. Studies reveal that structured, time bound use of technology boosts creativity, concentration, and critical thinking, especially with sustained weekly sessions. 

Research in primary science classrooms highlights improvements in conceptual understanding and student motivation when technology is integrated into lessons. Meanwhile, comparative studies show that these tools strengthen feedback loops. Further validation comes from independent evidence reviews: Kahoot! has achieved ESSA “promising evidence” certification for improving academic outcomes. Smart Revise has also proven to raise attainment. 

However, these benefits depend on teacher-directed, time-limited use. When phones switch from instructional tools to personal devices, the distraction penalty documented in cognitive research swiftly returns. 

In many schools, budget constraints make it difficult to provide every student with a dedicated device, yet the demand for digital access keeps growing. Modern smartphones already contain the sensors and software ecosystems needed for high quality educational tasks, meaning teachers can sometimes harness the devices students already carry rather than relying on costly one-to-one hardware programmes. Smartphones built-in capabilities—such as high resolution cameras, ARready graphics processors, and easy access to cloudbased apps—enable activities that might otherwise be out of reach in classrooms where funding for specialist equipment is limited. 

Should a school fail safeguarding if students have phones? 

Despite political pressure on Ofsted to classify smartphone presence as a safeguarding breach, the inspectorate has not taken this position. The current framework emphasises that schools must manage behaviour, safety, and digital risks effectively. Sir Martyn Oliver, HM Chief Inspector, said that if he returned to teaching, “I wouldn’t just say put your phone away, I would ban them. Ban, ban, ban them.” Yet this is not the official position of Ofsted. 

This means the real safeguarding concern lies not in possession but in poorly defined or inconsistently enforced phone policies. Schools should ensure clarity on expectations, parent communication, and staff consistency to avoid any perception of unmanaged risk. 

Australia’s social media ban for under 16s and its global implications 

Australia has become the world’s first nation to enforce a comprehensive ban preventing under-16s from accessing major social media platforms, including TikTok, Instagram, YouTube, Snapchat, Reddit, X, Threads, Facebook, Twitch, and Kick. Platforms must take “reasonable steps” to block underage access and deactivate existing accounts or face large financial penalties. The government’s stated aim is to shield young people from harmful algorithmic content—cyberbullying, violence, sexual material, predatory behaviour, and anxiety-inducing feeds. 

The ban is being watched closely by policymakers around the world. Countries from Denmark and New Zealand to Malaysia and several U.S. states are examining whether similar legislation is viable. Australia’s policy has effectively become a global test case for large-scale age gating and for compelling tech companies to adopt stronger verification mechanisms. 

Still, important practical challenges remain—particularly around age verification technologies, which must balance accuracy with privacy. ABC News reporting highlights ongoing uncertainty around how platforms will reliably verify ages without mandatory government ID checks, and how they will address children attempting workarounds. 

For schools worldwide, this shift could bring both opportunities and challenges. Reduced peer pressure strengthened national norms around delaying social media use, and more consistent parental boundaries may support school day phone bans. However, tightened platform restrictions could also lead students to increase use of unregulated alternatives or attempt circumvention. Schools will need to strengthen digital literacy and online safety education to address these evolving patterns of behaviour. 

Final thoughts 

The debate over phones in schools is evolving quickly—shaped by neuroscience, policy, pedagogy, and now global legislation. The research is clear: mobile phones create significant cognitive costs when freely accessible, but they hold genuine instructional value when deployed with purpose, structure, and teacher direction. Ofsted’s stance reinforces the need for thoughtful leadership rather than blanket assumptions, while Australia’s social media ban signals a major international shift in how governments view youth digital safety. 

Want to know more? Check out our At the chalk face video, where Dave and Kat have an honest and (at times) nerdy deep dive into the mobile phone debate.

 

For more At the chalk face videos, check out our playlist HERE.

Be sure to visit our website for more insights into the world of technology and the best teaching resources for computer science and business studies.

Stay informed, stay curious!

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Is the Online Safety Act protecting us, or going too far?

Navigating the new online safety act

7 January 2026

The UK’s Online Safety Act has landed, and while its intentions might seem noble, the execution has raised eyebrows across classrooms, workplaces, and dinner tables alike. Designed to protect young people from harmful online content, it’s already being labelled by some as overkill — a digital bazooka to squash a fly.

So, what’s really going on? Let’s break it down.

Age checks, fines, and blocked sites

At its core, the Act requires platforms to implement strict age verification systems. Think ID scans, facial recognition, or even using your webcam to prove you’re old enough to view certain content. Non-compliant sites risk heavy fines or outright bans in the UK.

But here’s the catch: this doesn’t just affect teenagers. Adults are finding themselves locked out of music, films, and even news unless they hand over personal data to third-party verifiers. Imagine being asked to show ID just to stream a song on Spotify — it’s happening.

The VPN boom

Unsurprisingly, VPN downloads have surged. Acting like an invisibility cloak for the internet, VPNs let users bypass age restrictions and region locks. Ironically, even some MPs — the very people behind the law — have been expensing VPN subscriptions instead of submitting to verification checks.

Yet this workaround isn’t risk-free. Free VPNs, in particular, often come with hidden dangers, from data harvesting to malware. In trying to dodge surveillance, users may be stepping into something worse.

When protection becomes restriction

The ripple effects go beyond entertainment. News about conflicts in Gaza or Ukraine, LGBTQ+ support resources, and other legitimate educational content have been blocked under sweeping rules. The Act’s “better safe than sorry” approach has meant that entire conversations and communities are stifled.

It’s a balancing act: yes, protecting young people is vital, but when important voices and discussions are muted, digital freedom takes a serious hit.

Finding the balance

So, is the Online Safety Act safeguarding the vulnerable or silencing too much? 

Its double-edged nature shows us that regulation without nuance can lead to privacy risks, restricted freedoms, and frustrated users.

For teachers, students, and parents navigating these changes, the key is to stay informed and ask the hard questions: how do we balance safety and freedom online?

Watch the full Lesson Hacker video to dive deeper into the world of The Online Safety Act.

For more Lesson Hacker videos, check out the Craig’n’Dave YouTube playlist HERE.

Be sure to visit our website for more insights into the world of technology and the best teaching resources for computer science and business studies.

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GDPR and the US: Can you trust American tech with your data?

28 October 2025

Understanding what GDPR really means when your data crosses the Atlantic

When you think of GDPR, your mind probably jumps to endless cookie pop-ups. But the regulation goes much deeper—especially when it comes to where your data ends up. One of the big questions in the world of computer science and data protection is: Can UK or EU-based organisations legally use US-based services like Google under GDPR?

The answer isn’t as clear-cut as you might hope.

What does GDPR actually say about US data transfers?

GDPR doesn’t flat-out ban sending data to the US—but it insists that your personal information must be treated with the same level of protection as it would receive within the EU. That was once straightforward thanks to the Privacy Shield agreement, until it was invalidated by the European courts over concerns about US surveillance laws.

Enter the EU-US Data Privacy Framework. It sounds secure, but participation is voluntary for US companies. If a business is certified under this framework, data transfers are allowed without jumping through too many legal hoops.

What does compliance really look like?

Here’s where it gets tricky. Just because a US company is able to receive your data doesn’t mean it automatically follows GDPR. UK and EU organisations must still carry out due diligence:

  • Are they only transferring data to certified companies?
  • Have they signed Standard Contractual Clauses (SCCs)?
  • Have they assessed the risk of US surveillance laws applying?

Failing to do any of these could land an organisation in hot water with the ICO.

The hidden risks you can’t see

Even more concerning, if a company has handed over your data to the US government, they’re legally not allowed to tell you. Gag orders mean you could be unaware that your information has already been shared. That’s why GDPR isn’t based on trust—it demands verifiable protection.

So, can you use Google and still be GDPR-compliant? Yes—but only if both Google and your organisation have taken all the right steps. If not, you could be unknowingly breaching GDPR.

Want to know more? Check out The Lesson Hacker’s YouTube video – 

For more Lesson Hacker Videos, check out the Craig’n’Dave YouTube playlist HERE.

Be sure to visit our website for more insights into the world of technology and the best teaching resources for computer science and business studies.

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Is Apple in hot water?

Is your data still safe in the UK?

2 September 2025

Apple just pulled a major privacy feature from the UK—and it wasn’t because they felt like it. The tech giant was asked by the UK government to weaken its encryption, effectively creating a backdoor to your iCloud data. Apple’s response? “Nah, we’ll just remove the whole feature instead.” But what does this mean for your privacy, and why is it such a big deal? Let’s break it down.

What is the snooper’s charter?

The Investigatory Powers Act (charmingly nicknamed the Snooper’s Charter) is a UK law that gives the government the right to demand access to encrypted data in the name of national security. Think terrorism, child abuse, and organised crime—the heavy stuff.

In theory, this law is about protecting the public. But in practice, it means the government can secretly force tech companies to create backdoors, making once-secure systems vulnerable. The problem? Encryption is designed so not even Apple can access your private data. The whole point is that your information is locked in a digital vault that only you have the key to.

Apple’s response: No vault for you

Rather than creating a secret backdoor, Apple took a different approach. They simply removed their C (ADP) feature from the UK altogether. ADP gave iCloud data an extra layer of encryption that even Apple couldn’t crack.

By pulling the feature, Apple essentially said, “If we can’t guarantee privacy, you can’t have it.” It’s a bold move—one that’s left privacy advocates cheering and the UK government fuming.

Why does this matter?

If you were using ADP in the UK, it’s now gone. Your iCloud data is no longer as secure as it was. But the impact goes beyond just Apple users.

If the UK government wins its legal battle to force Apple (and potentially other companies) to add backdoors, it could set a global precedent. Governments worldwide might demand the same, making everyone’s data—from journalists and activists to everyday users—more vulnerable. And once a backdoor exists, it’s not just governments that will exploit it. Hackers, cybercriminals, and shady data brokers will be lining up too.

What can you do?

If you’re concerned about your privacy, you might want to look into alternative encrypted storage solutions. Or, if the UK keeps pushing for more data access, you may have to resort to smuggling USB sticks across the Channel like some kind of 21st-century data bootlegger.

Want to dive deeper?

This is just a glimpse into the ongoing battle between governments and tech companies over your privacy. 

Watch the full video on our Craig’n’Dave YouTube channel.

For more insights, resources, and lesson content, head over to our website: craigndave.org.

Stay informed, stay secure, and stay tuned.

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Did Deepseek change AI?

Deepseek: The Chinese AI startup shaking up Silicon Valley

26 August 2025

What is DeepSeek and why is it making waves?

DeepSeek, an AI company based in Hangzhou, China, is making headlines with its latest models, DeepSeek-V3 and DeepSeek-R1. These models aren’t just impressive in quality—they’ve been built for a fraction of the cost compared to OpenAI’s ChatGPT. Reports suggest DeepSeek trained its models for under $6 million, an astonishingly low figure in the AI industry. To put it into perspective, that’s like buying a Ferrari for the price of a second-hand scooter.

Adding to the excitement, DeepSeek’s AI assistant has surged to the top of the US App Store, overtaking ChatGPT. If there’s one thing Americans love more than AI chatbots, it’s winning—and DeepSeek seems to be doing just that.

How did they build it for so little?

The secret lies in a technique called AI distillation. Unlike traditional AI training methods that demand vast amounts of computing power, distillation allows DeepSeek to train a large model first, then extract the key knowledge into a smaller, more efficient version. Think of it as revising for an exam—not reading the entire textbook, just the essential parts.

This method is incredibly cost-effective. Research teams have recreated OpenAI’s reasoning model for as little as $450 in just 19 hours. Some have even done it for $50 in 26 minutes—cheaper than a takeaway pizza. By using distillation, DeepSeek has bypassed the traditional ‘throw money at it’ strategy and delivered an AI that punches well above its weight. Even OpenAI’s CEO, Sam Altman, has hinted that they may need a new open-source strategy to keep up.

What are the drawbacks?

DeepSeek’s meteoric rise isn’t without controversy. One major concern is its hardware. Reports suggest the company may have access to far more Nvidia AI chips than US export controls should allow. If true, this raises serious questions about trade restrictions and supply chains.

Another challenge is accuracy. While AI distillation makes models faster and cheaper, it also means some information gets lost along the way. It’s like summarising a novel—you get the main ideas, but occasionally miss important details.

Are there security concerns?

With AI becoming more affordable and accessible, concerns around misuse are growing. While democratising AI leads to faster innovation, it also increases the risk of deepfakes, misinformation, and other ethical dilemmas. If DeepSeek can build a ChatGPT competitor at a fraction of the cost, what’s stopping a rogue developer from creating something far more dangerous in their garage?

DeepSeek has disrupted the AI landscape, proving that cutting-edge models don’t need billion-dollar budgets. This has left OpenAI and Silicon Valley scrambling to adapt. Will this spark a new AI arms race? Possibly. But one thing is clear—AI is evolving at breakneck speed, and the future is closer than we think.

Want to see more about this AI shake-up? Watch the full video on our YouTube channel

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What is AI?

AI: Just fast maths pretending to be smart

12 August 2025

AI. It’s a term that gets thrown around everywhere—from science fiction films to social media posts and school corridors. But what actually is artificial intelligence, and why is it so important to understand?

At its core, AI doesn’t actually think—it just predicts. It’s essentially super-fast maths, rapidly analysing patterns to guess what should come next in a sequence. Imagine that friend who always finishes your sentences… except AI does it with slightly better accuracy.

How do transformers power AI?

No, we’re not talking about giant robots (although that would be cool). In AI, transformers are a type of deep learning model that helps machines generate human-like text. Here’s how they do it:

  • Word magic: AI doesn’t see words—it sees numbers. It converts text into numerical values that represent meaning. Kind of like the Matrix, but without the leather trench coats.
  • Attention, please! Transformers scan every word in a sentence and decide which ones are important. It’s a bit like pretending to listen in a meeting but only perking up when you hear “free snacks.”
  • Prediction time: AI makes an educated guess about the next word, refines it, and repeats the process until the sentence sounds human. The result? AI-generated essays, jokes, and sometimes suspiciously accurate emails.

How does AI learn??

Behind the scenes, AI is powered by huge datasets and clever algorithms. These systems “learn” patterns from data, meaning they can improve their performance over time without being explicitly programmed to do so. This process is called machine learning, and it’s how many of today’s most exciting AI tools work.

AI and you

AI is already influencing your daily life, whether you realise it or not. It shapes the content you see online, helps doctors spot diseases faster, supports businesses with automation, and could even play a role in your future career. Understanding how it works is more than just useful—it’s essential.

Why AI isn’t taking over (yet)

Despite its clever tricks, AI isn’t sentient—it’s just playing a game of supercharged fill-in-the-blank. While it’s brilliant for generating text and answering questions, it still lacks genuine understanding or creativity. So, would you trust it to run the world? probably not. But to help you write a convincing email? absolutely.

Want to learn more?

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How do computers generate random numbers?

29 July 2025

Ah, randomness! It’s everywhere in nature—think dice rolls, quantum physics, or even your cat’s indecision. But when it comes to computers, randomness doesn’t come naturally. Why? Because computers are logical machines, designed to follow precise instructions. So, when we ask for a “random” number, they can’t just pluck one from thin air. Instead, they rely on something called a pseudo-random number generator (PRNG)—essentially, randomness with a script.

How does a pseudo-random number generator work?

Here’s how computers fake randomness step by step:

  1. The magic seed
    The process begins with a “seed” number. This seed could be almost anything—like the exact millisecond from the system clock, the temperature of your CPU, or even the quirky motion of a lava lamp (a trick famously used by Cloudflare for added unpredictability).
  2. Math happens
    Once the seed is set, it’s run through a complex mathematical formula designed to churn out seemingly random results. Picture a blender spinning at full speed, tossing numbers into a chaotic whirl.
  3. Voilà! fake randomness
    Out comes a number that looks completely random. However, if someone knows the original seed and the formula, they can predict the outcome—like a magician pulling the same rabbit from their hat every time.

Can computers create true randomness?

When it comes to security, like encrypting sensitive data, fake randomness isn’t enough. For truly unpredictable results, computers turn to nature for help. They measure chaotic phenomena like radioactive decay, electrical noise, or even the small, unpredictable quirks of daily life. This kind of randomness, called “true randomness,” is far more secure and impossible to predict.

So, while computers don’t naturally do random, they’ve mastered the art of faking it with clever algorithms. But when we need something truly unpredictable, we can rely on the chaos of the natural world. Or, as a simpler alternative, just watch a cat trying to decide whether to go outside.

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Can We Tell the Difference Between High Frame Rates?

22 July 2025

Ever heard gamers argue about frame rates? One insists 60 FPS is perfectly fine, another declares anything below 240 FPS is unplayable, and then there’s that one person who swears they can see the difference between 999 and 1000 FPS—probably while wearing a pair of ancient glasses. But what’s the truth behind these claims?

How the human eye processes motion

Let’s clear something up first: the human eye doesn’t see in frames per second. It’s not a digital monitor but a complex biological system. Our eyes take in continuous information, and our brains process motion at speeds that matter—but only to a point.

At frame rates below 30 FPS, motion starts to look disjointed, like an old puppet show. Jump to 60 FPS, and things feel smoother, though many gamers will still find room to complain. Push it up to 120 FPS, and you’ll notice things feel even “snappier”—but now we’re entering a realm where perception begins to blur with personal preference.

The limits of perception

What about 240 FPS? At this stage, individual frames become almost imperceptible, but some people—especially competitive gamers—may notice the increased smoothness in fast-paced scenarios. Beyond that? Unless you’re a fighter pilot, a mantis shrimp, or bluffing, the benefits become negligible.

It’s not just about frame rate

Frame rate is only one piece of the puzzle. Motion blur, screen technology, and input lag also influence how smooth gameplay feels. So, if you’re investing heavily in a high-performance monitor, remember this: at some point, you’re not just paying for a better gaming experience—you’re paying for bragging rights.

Does it really matter?

While high frame rates can enhance gaming for certain scenarios, they’re not always necessary for a great experience. Understanding the science of perception can help you decide when to upgrade—and when to save your money.

Want to dive deeper into the science of frame rates?

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Why do arrays start at zero?

15 July 2025

If you’ve ever dived into programming, you’ve probably asked yourself: why on earth do arrays start at zero instead of one? At first glance, it seems counterintuitive, but the answer lies in efficiency and logic.

Visualising arrays: the row of lockers analogy

Think of an array as a row of lockers. Each locker has a position, starting at the very beginning of the row. The first locker is zero steps from the start, the second locker is one step away, and so on. If you want to access the third locker, you count two steps from the beginning: 0, 1, 2. This is the essence of zero-based indexing—it measures the offset from the starting point.

The link between arrays and memory

Arrays in programming map directly to how memory works in a computer. When an array is created, it’s stored as a block of memory. Accessing an element at array[i] involves the computer locating the base address of the array in memory and adding i to it. Starting at zero simplifies this calculation, making it faster and more efficient. In essence, zero-based indexing aligns perfectly with how hardware is designed to operate.

Why not start at one?

While starting at one might feel more intuitive, it’s not practical. Zero-based indexing is baked into the very foundation of programming languages, compilers, and hardware logic. Switching to one-based indexing would introduce unnecessary complexity and inefficiency. That’s why programmers worldwide have embraced zero-based indexing as the universal standard.

It’s not weird—it’s smart!

So, the next time you see array[0], remember it’s not just a quirk of programming. It’s a smart, efficient design choice that keeps your code running smoothly.

Want to learn more?

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