Every point explained first
In the order your board's specification lists them, under its own codes, with Mr Exham's video wherever he has made one. Each lesson explains the idea before it asks you anything about it.
- Mr Exham's videos
- Your own spec

Your board's IGCSE Biology specification as lessons and questions, built from Mr Exham's videos, with personalised practice until your exams.
Mr Exham's videos stop and ask you questions as you watch. This course is built the same way: a lesson, then questions, then practice on what you got wrong.
In the order your board's specification lists them, under its own codes, with Mr Exham's video wherever he has made one. Each lesson explains the idea before it asks you anything about it.

Put the path of blood through the heart in order. Match each part of the blood to its job. Pick the vessel that carries blood away from the heart at high pressure. You find out what you know by answering.

What you get wrong gets practised again within days, what you know comes back later. So you will remember your first-term topics in June or November, and the last weeks aren't spent relearning everything.

Type a question about any topic and the answer is drawn from this course's own lessons, with a link back to where it is explained. No weak sources, no AI hallucination.

From the first topic on your board's specification to the last, every topic has its lessons and its questions.










The course follows your board's specification in order, so you always know which part you are on and what is left.
Each lesson ends in questions, so you find out what you actually know before the exam does.
IGCSE papers can ask about any topic, so your first-term topics keep coming up in practice and still feel fresh at the exam.
Pick your board to see its papers, practicals and topics.
Built for Pearson Edexcel International GCSE Biology (4BI1)
From the Pearson Edexcel 4BI1 specification (Issue 3) and Mr Exham's lessons
Put in your exam date and the app spreads the whole course across the weeks you have, with review built in.
Ordering, matching, tables, labelling a diagram, fill the blank, flashcards. The same idea gets asked more than one way, so you learn the biology, not the look of the answer.












I'm a biology teacher, and I started MrExham.com in 2013 for students studying IGCSE, A level and IB. My videos have since been watched in more than 130 countries.
Every video takes one topic of the specification, with its diagrams and practicals, and stops to ask you questions as you go.
Watching a video feels like revision, but you learn far more by answering questions. So this course asks you about every topic, until you know it.

Yes, and they stay free on YouTube. The course is where you learn your specification in order and get asked about it, with the things you get wrong coming back before the exam.
Yes. Each course is built for one board, under its own codes and in its own order. Pick yours above and you get that one.
As questions, yes: ordering the steps of an experiment, reading results and spotting what was kept the same. It doesn't replace doing the experiment in a lab.
No. Every question in the app has a checkable answer, so it can't mark a long answer and doesn't pretend to. What it drills is the biology those answers are built from: the facts, the processes and the reasons behind them.
A biology study course in the Voovo app, built with Mr Exham, a biology teacher who runs MrExham.com. It doesn't replace school or a tutor; it's the practice in between. It isn't open yet: sign up on this page and you'll hear the day it opens, with 10% off.
Pick your board and sign up now, and you'll hear the day your course opens, with 10% off.