A-level revision guides

Dr Lavan Ganeshkumar, PhD · updated 4 October 2026

These guides answer the questions A-level students and parents ask most about revision, from how to prepare to which apps to use. They are written by Dr Lavan Ganeshkumar, who has taught A-level for over ten years, and each can be followed without any app.

Pick the question you are stuck on below.

Where to start

If you are not sure, start with the revision method, then the plan, then the timetable. If you are choosing tools, start with the apps comparison. If you are on a specific subject, go to the subject guides.

Where Trayna fits, and where it does not

Trayna is a 24/7 online tutor in your pocket, on your tablet and on the web. Dr Lavan teaches you the topics in the app any time, anywhere, and an adaptive plan reinforces them each day from now to your exam. It is there for students who cannot afford 1-to-1 tutoring, and it is built to act like a 1-to-1 tutor: it teaches, it checks, and it adapts to how you are doing. The aim is that you really understand the subject and are prepared for it, not just that you have revised it. It is A-level only, for Maths, Chemistry, Physics and Biology. Maths follows Edexcel; Chemistry, Physics and Biology follow AQA.

It is for both Year 12 and Year 13. Year 13 students already use it, and Year 13 topics are being added as current students need them while Year 12 is the most complete, so check your topics in the app. If you only want free past papers, PMT does that better than we do, and we would rather you used it.

Common questions

What is on this page?

Every Trayna guide to A-level revision, grouped by question: methods, plans and timetables, apps compared, subject guides and how Trayna compares with other tools.

Who writes the guides?

Dr Lavan Ganeshkumar, who holds a PhD in computational chemistry from UCL and has taught A-level for over ten years.

Trayna does this automatically. You enter your subjects, your exam dates and how long you have each day, and it builds the route from today to those exams, then adapts it as you go. Maths follows Edexcel; Chemistry, Physics and Biology follow AQA.

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