Watch it, hear it, do it: the science behind how neurodivergent learners revise best

Over the next week, I'll share previews from the new Science Cafe revision site: a Key Ideas video on enzymes, a podcast on energy resources, and a lesson audio on communicable diseases. A lot of you have asked why I've built the site this way, rather than just putting up more notes and past papers.

The short answer is that it's how the brain learns, and it matters even more for ADHD, dyslexic and autistic students. Here's the longer answer.

1. Working memory is the bottleneck

Working memory is the brain's "notepad". It holds a small amount of information while we make sense of it. It's limited for everyone, and research consistently finds it is under even more pressure for many students with ADHD and dyslexia.

When a student opens a dense page of notes, much of that notepad gets used up just decoding the text, keeping their place, and figuring out what matters. There's less left over for the actual science. Cognitive load theory, developed by John Sweller, describes exactly this. Learning works better when we remove effort that doesn't support understanding.

That's why each Key Ideas video covers one idea only. One video, one concept, one clear take-away. Nothing to filter out.

2. Two channels are better than one

Psychologist Allan Paivio's dual coding theory suggests we process words and images through separate but connected channels. When a student hears an explanation while seeing a clear diagram, the idea gets stored in two ways, giving them two routes to remember it later.

Richard Mayer's research on multimedia learning built on this. Across many studies, students learned more from words with relevant pictures than from words alone, especially when the words were spoken rather than written on screen. That is the format of the Key Ideas videos: a simple visual with a voice-over explaining it.

3. Listening takes the pressure off reading

For a dyslexic student, reading can be slow and tiring. Their understanding of science might be excellent, but the effort of decoding gets in the way. Reviews of text-to-speech and audio support have found it can help students with reading difficulties understand more of what they're studying, because it separates the science from the reading.

That's why every lesson on the new site can be listened to and read. Students can follow the text with their eyes, or just listen. It's their choice.

The podcasts do something slightly different. They're relaxed and chatty, and they revisit a topic the student has already met. Hearing it again in a different way is a form of spaced review, which brings me to the next point.

4. Little and often beats one big push

Two of the best-supported findings in learning science are the spacing effect and retrieval practice. Coming back to a topic several times over days and weeks, and actively trying to recall it, leads to much stronger long-term memory than cramming. A major review by John Dunlosky and colleagues in 2013 rated practice testing and spaced practice as the two most useful study techniques they looked at.

For neurodivergent learners, "little and often" has a second benefit. Short sessions are easier to start, easier to finish and less overwhelming.

5. Why clear daily tasks make such a difference

This is the part I feel most strongly about. Many neurodivergent students know they should revise. What stops them is everything that comes before revision: deciding what to do, working out where to start, breaking it into steps and keeping track of it all. These are executive function skills, and they're often the area where ADHD and autistic students struggle most.

"Revise biology" is not a task. It's a decision that has to be made first, and that's where so many students get stuck.

So the new site gives each student a clear, personalised task each day, matched to their course and exam board. For example: watch one Key Ideas video, listen to one lesson audio, then answer five quiz questions. It's specific and achievable, and there's a clear finish line.

This takes the planning load away, so their energy goes into learning. It also builds a routine, and routine reduces anxiety. Every completed task is a small win, and small wins build the confidence to keep going.

Bringing it together

None of this is a gimmick. Each part of the site is there for a reason:

• Key ideas videos keep the load on working memory low and pair pictures with words.

• Lesson audio means reading difficulties don't get in the way of understanding the science.

• Podcasts bring topics back around again in a relaxed way.

• Quizzes make students actively recall what they've learned.

• Daily tasks remove the executive function barrier, so starting is easy.

Every neurodivergent learner is different, and no single approach suits everyone. That's exactly why giving students more than one way in matters.

Have a look and tell me what you think

If you haven't seen the previews yet, here they are:

🎬 Key ideas video: Biology, Enzymes
🎧 Podcast: Physics, Energy Resources (Powering our World)
🔊 Lesson audio: OCR 21st Century Triple Biology, Communicable diseases

I would genuinely love to hear your feedback before the site launches. Drop me a message and let me know what works for your child.

Sarah

Further reading

Paivio, A. (1986). Mental Representations: A Dual Coding Approach. Oxford University Press.
Mayer, R. E. (2009). Multimedia Learning (2nd ed.). Cambridge University Press.
Sweller, J. (1988). Cognitive load during problem solving: Effects on learning. Cognitive Science, 12(2), 257–285.
Dunlosky, J. et al. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58.
Kofler, M. J. et al. (2017). Working memory and organizational skills problems in ADHD. Journal of Child Psychology and Psychiatry, 59(1), 57–67.