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Four revision techniques that actually work

8 July 2026

The goal of revision is simple: retrieve knowledge efficiently while avoiding cognitive overload. The habits below help students revise in a way that strengthens long‑term memory rather than wasting time on ineffective strategies.

✅ DO: effective revision habits

  • Start revision early.
  • Work in 20–30-minute focused blocks with 5‑minute breaks.
  • Stop after 3–4 blocks to avoid fatigue.
  • Use each block for one specific retrieval‑based task from the four techniques below.
  • Use the four techniques across many sessions.
  • Mark your own work using official mark schemes.
  • Find a quiet, distraction‑free space.

❌ DO NOT: common ineffective practices

  • Do not reread notes, knowledge organisers, or revision guides.
  • Do not highlight or underline notes.
  • Do not rely only on multiple‑choice questions.
  • Do not cram.
  • Do not revise a single topic for long periods.
  • Do not multitask (music with lyrics, messaging apps etc).
  • Do not rely on AI marking.

 

Four revision techniques that actually work

1. Self‑testing with Cornell notes (active recall through reconstruction)

Students should use the Cornell notes created during learning to drive retrieval practice.

How to do it:

  1. Cover the main notes so only student‑generated questions and 8 key words remain visible.
  2. Use the key words as prompts to reconstruct the full notes from memory.
  3. Use the questions to check for depth and completeness.
  4. Uncover the original notes and compare:
    • Identify gaps.
    • Note missing steps.
    • Improve explanations for next time.
  5. Repeat this activity in a later revision block to strengthen the memory.

Why it works:

This is active recall, which significantly outperforms passive review methods. Reconstructing notes from prompts strengthens memory, improves metacognition, and provides clear insight into what still needs practice.

If students did not use the Cornell method during their course, they can use text books, Craig’n’Dave videos, knowledge organisers or revision guides as their reference material to make notes first.

 

2. Brain dumps with spider diagrams/mind maps

Use this to vary retrieval practice and avoid duplicating the Cornell notes process.

How to do it:

  1. Place the topic title in the centre of a blank page.
  2. From memory, create branches for all ideas, terms, diagrams, processes, and examples.
  3. Compare with class notes, textbooks, knowledge organisers or revision guides.
  4. Add missing content in a different colour.
  5. The missing branches form a priority list for the next revision cycle.

Why it works:

This technique uses visual, non‑linear retrieval to organise knowledge and reveal gaps. It’s low‑stakes, promotes metacognition, and strengthens recall.

 

3. Key‑term review using Smart Revise “Terms” Mode (Leitner System)

Flashcard practice works when spaced and retrieval‑based. Smart Revise automates this.

How to do it:

  • Use Smart Revise → Terms mode to practise vocabulary and definitions.
  • Initial flipping is passive; once confident, switch to interactive mode to write definitions.
  • The built‑in Leitner system increases practice of weaker terms and reduces repetition of mastered ones.
  • Review a small number of Terms every day, ensuring spacing.

Why it works:

Spaced retrieval is one of the most reliable ways to build long‑term retention. The Leitner system ensures time is focused on weaker areas, making revision more efficient.

If students don’t have Smart Revise they could be supplied with flashcards. Be wary of students making their own cards because they may miss some concepts, write incorrect definitions or misconceptions.

 

4. Practice papers under exam conditions + Smart Revise “Advance” mode

Past papers are essential but limited. Smart Revise adds extra high‑quality questions.

How to do it:

  • Sit timed papers with no notes and no assistance.
  • When past papers run out or you need variety, use Smart Revise Advance mode or Tasks to generate exam‑style questions.
  • Always self‑mark or use Smart Revise peer marking using mark schemes. Do not use any AI marking options for revision. It is too unreliable.

Why it works:

Exam‑condition practice improves retrieval fluency, timing, and confidence. Marking answers with real mark schemes deepens understanding of criteria and strengthens memory through deliberate error‑correction, something AI marking cannot replicate reliably.

 

How to Use Revision Guides and Knowledge Organisers

Treat revision guides and knowledge organisers as reference tools, not revision techniques.
Use them to:

  • Check whether a brain dump covered everything.
  • Check whether notes are good enough for self‑testing.

They are supporting resources, not methods.

 

Should Revision Be Fun?

Effective revision is meant to be cognitively demanding. Enjoyable, game‑like activities often feel productive but reduce the desirable difficulties needed for durable learning.

Fun has a place during initial learning, but revision works best when it involves effortful retrieval, not entertainment. Making the activity memorable can sometimes overshadow the knowledge itself.

The most effective revision techniques are rarely the most entertaining, but they consistently produce better long‑term results.

 

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

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Why can’t we just stick RAM directly onto the CPU?

22 April 2025

In the world of computer science, speed is everything. So, it’s easy to see why the idea of sticking RAM directly onto the CPU seems like a genius move. Zero latency, lightning-fast speeds, and no more bottlenecks—what’s not to love? But in reality, it’s not that simple. Let’s break down why we can’t just combine these two crucial components into one.

The difference between CPU and RAM

At first glance, sticking RAM onto the CPU might sound like a great way to boost performance. After all, the closer RAM is to the CPU, the faster data can be accessed, right? Unfortunately, it’s not that straightforward. The CPU and RAM are built in fundamentally different ways.

CPUs are designed to handle calculations at breakneck speeds using logic processes. On the other hand, RAM—specifically Dynamic RAM (DRAM)—uses capacitors to temporarily store data. The catch is that these capacitors need constant refreshing to retain their information. This is similar to a student frantically rereading their notes to ensure they remember everything during revision.

Why it doesn’t work together

Trying to combine CPU and DRAM onto the same chip would cause chaos in the manufacturing process. DRAM fabrication doesn’t align well with the processes used to create a CPU. Imagine trying to install a high-end GPU into a budget laptop—it just won’t fit, and forcing it could cause damage.

Even cutting-edge technologies like Intel’s Haswell architecture use embedded DRAM (eDRAM) sparingly. The goal is to use just enough to boost performance without massively increasing production costs. However, merging CPU and RAM completely would be a manufacturing nightmare.

The speed factor: DRAM vs. SRAM

Even if we could combine the two, there’s another issue: speed. DRAM operates at a top speed of about 1 GHz, while modern CPUs can easily surpass 3 GHz. That’s like putting bicycle tyres on a Formula 1 car—you’re limiting the performance of the entire system.

To overcome this speed gap, CPUs use SRAM (Static RAM) for on-chip cache. SRAM is much faster than DRAM but comes with its own drawbacks: it’s bulkier and significantly more expensive. Sure, we could fill a CPU with SRAM, but that would come at an astronomical cost—far more than most of us are willing to pay.

Why we stick to separate RAM and CPUs

While combining RAM and the CPU might sound like a performance dream, the technical and cost limitations make it impractical. The current balance of DRAM for main memory and SRAM for cache strikes the best compromise between speed, cost, and practicality.

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

For more Lesson Hacker Videos, check out the CraignDave YouTube playlist HERE.

Visit our website to explore more cutting-edge tech-transforming news in the computer science world!

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Getting maximum value from Smart Revise with Year 11

15 April 2025

Exams are only a few months away and what your students do now is going to make the biggest impact to their results in August. It almost doesn’t matter what their work ethic has been like up until now, there is still time for all students to achieve their potential if they engage in regular active revision using the best techniques from today. 

Once you have delivered all the course content switch the topic filters to “Student controlled” in Smart Revise. Make sure you have Quiz, Terms reflective, Terms interactive and Advance modes enabled in the class settings. This will allow the students to take charge of what to revise, when and how. 

Top tips for students 

  • Use the Summary report to know the topics that are your strengths and weaknesses. 
  • Click on a Quiz pie chart in the summary report to do multiple-choice questions only on weaker topics. 
  • Look at the Top 10 revision references at the bottom of the summary report.
    These are your specific weaknesses across the whole course. You can watch the Craig’n’Dave videos if that helps but beware of passive revision. 
  • Click on a Terms pie chart in the summary report and filter the cards you want to focus on: sad, neutral, happy, unanswered. Reflective is a passive reflection. Interactive is more challenging but is essential. You should be able to define terms at this stage of the course. Use reflective as a reminder and interactive when you are revising. 
  • Click on an Advance pie chart in the summary report to see exam-style questions. Use the next button to find a question you want to attempt. Start with the low mark questions first and work up. Pretend you are in a real exam. Set an alarm on your phone for the number of marks the question is worth and spend that amount of time answering the question. 
  • Use the built-in mark schemes to mark your answer and be realistic. It doesn’t matter if you get low marks when you are practicing. 
  • If you don’t get full marks, note the question number. Have another go at the same question a few days later to see if you can improve your answer. Use the “last answer” button to see your most recent answer. 
  • Start with low mark questions, but don’t avoid the high mark Advance questions forever. You will get lots of 1–6-mark questions in your exam and one 8-mark question in each paper. 
  • Just because you know something this week doesn’t mean you will remember it next week so don’t neglect the topics you have mostly green on the pie charts in the summary report. Checking you still have the understanding is important. 
  • Start Terms – Leitner mode is good for daily reminders of terminology once you have mostly green or yellow pie charts in most of the topics on your summary report. Remember to set the topic filters to the whole course before using Leitner mode.
     

Beyond Smart Revise 

Although Smart Revise is great, it is important to provide students with real past papers so they can practice writing on lines with a pen too! Some papers will be publicly available on exam board websites, but others will require logging in to their portals to be downloaded. 

We often assume students will just “know” how to revise without being explicitly taught how to. This is a mistake. Show students the technique of mind mapping and build a mind map for a topic with them, maybe using the Terms in Smart Revise for reference. Smart Revise compliments this tried and tested approach, it does not replace it. 

One technique we developed with our students is the “what why web” (see what we did there) which is a scaffolded approach to making a mind map. Write the concept in the middle and then on a second branch state what words are associated with the concept, and on a third branch state why it is necessary, any implications and examples. 

For example, the concept of registers for OCR J277 might look like this: 

As Dunlosky showed, the worst revision students can do is reading their notes, looking over classwork and watching videos because these are passive techniques. Knowledge organisers and revision guides are useful, but they should only be used as a reference guide to check understanding, in themselves they are not revision.

By the way, put those highlighter pens away because research has shown that highlighting notes is worthless!

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Smart Revise: The ultimate tool for effective exam success

12 November 2024

Smart Revise is a continual revision tool with quizzes, exam-style questions, and personalised feedback to boost exam performance and reduce teacher workload. 

Smart Revise: Raising attainment and reducing workloads.

So, What is Smart Revise?

Smart Revise, created by Craig ‘n’ Dave, is transforming how students and teachers approach revision. Rather than cramming at the last minute, it promotes continual practice throughout the course, helping students to master subjects like Computer Science and Business Studies gradually. The platform is designed to make revision less stressful and more effective by aligning practice questions with the research.

But what exactly makes Smart Revise such a game-changer? Let’s dive into how both students and teachers can benefit from this innovative tool.

How teachers can use Smart Revise to boost classroom success

For teachers, Smart Revise is not just a revision tool, it’s a workload reducer. Teachers often spend hours preparing mock exams, quizzes, and practice materials. Smart Revise does that for you. With its extensive question bank, all designed by experienced examiners, the platform allows teachers to set quizzes, homework, and mock exams in a matter of clicks.

The platform provides personalised and diagnostic feedback through its advanced reporting tools, allowing teachers to easily track student progress and pinpoint areas needing intervention. Plus, it supports various assessment techniques like self-marking, peer marking, and even AI marking, ensuring that students get the feedback they need with minimal teacher effort.

Teachers can also use Smart Revise to promote active learning during lessons. Features such as “Tasks” allow teachers to assign extended questions that mirror exam conditions, enabling students to practice longer-answer formats​.

How students can use Smart Revise to ace exams

For students, Smart Revise offers a structured approach to revision that builds confidence. One of the platform’s standout features is its quiz functionality, designed for daily use. These quizzes help students retain knowledge by revisiting past topics in an engaging, low-pressure way. And for those struggling with exam techniques, the platform includes model answers and self-assessment tools so students can refine their responses based on real exam mark schemes​

Another helpful feature is the flashcards, which reinforce essential terms and definitions, helping students retain information over the long term. With Smart Revise, students can practice at their own pace, mixing up topics and question types to keep things fresh and engaging. 

The result? Improved exam performance and reduced last-minute stress​

Ready to revise smarter?

Smart Revise has already proven its worth in classrooms across the UK, helping students improve their grades while lightening the load for teachers. It makes revision more effective and reduces your workload.

If you’re looking for a smarter way to revise or teach, why not try Smart Revise!

Visit Craig’n’Dave’s Smart Revise website to explore all the features. 

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