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Revise exactly what the examiner asks.

Notes, flashcards, interactive labs and a dictionary for IGCSE classes, each built on the syllabus topic it's examined on.

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168

days until 27 April 2027

Check your own exam timetable for your papers.

Notes written against the syllabus, not around it.

Each note starts from a syllabus statement and stops when you can answer it. No padding, no tangents.

Example: 1.6 Momentum statements

  • 1.6.1Define momentum as mass × velocity
  • 1.6.2Recall and use p = mv
  • 1.6.3Define impulse as force × time
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Illustrative example. Not taken from an exam paper.

Momentum

Momentum is the product of an object's mass and its velocity. Because velocity has a direction, momentum is a vector: if right is positive, a ball moving left has negative momentum.

p = m v
p   momentum, kg m/sm   mass, kgv   velocity, m/s

Examiner tip

Give the unit as kg m/s or N s. “kg m” is not a unit of momentum.

Worked example

A 2.0 kg trolley moving at 3.0 m/s hits a 1.0 kg trolley at rest and they stick together.
p before = 2.0 × 3.0 = 6.0 kg m/s
p after = (2.0 + 1.0) × v
6.0 = 3.0 v,  so  v = 2.0 m/s

The classes you can open today.

Each class follows its syllabus in order. Pick yours and start at the first topic.

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Cambridge IGCSE

Cambridge IGCSE Co-ordinated Sciences

Pearson Edexcel IGCSE

Six ways to revise a topic.

Use them in any order. You can look around without an account.

  1. Notes

    Short notes organised by syllabus topic, with the wording examiners reward.

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  2. Flashcards

    Make your own sets and revise them card by card.

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  3. Interactive labs

    Move the sliders and watch the physics, chemistry, biology or maths respond.

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  4. Dictionary

    Technical terms with a definition, an example and how the term is used.

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  5. Mini mock exam

    A short timed paper with a countdown. Physics and Chemistry for now.

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  6. Discussion

    Ask about a paper question. The answer you accept goes to the top.

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See it move before you memorise it.

Interactive labs let you change a value and watch what happens, so the equation stops being a thing to learn and starts being a thing you've seen.

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Questions.

Which exam boards?

Cambridge IGCSE, including Co-ordinated Sciences, and Pearson Edexcel IGCSE Mathematics A (4MA1). A-Level classes are on the way.

Do I need an account?

Not to look around. Classes, labs, the dictionary and the discussion board are open to everyone. You need an account to post or reply.

What is in a class?

The topics of its syllabus, in order, with notes. How much each topic has varies by class while the notes are still being written.

Are the mock exams full papers?

Not yet. They are short timed sets, and only Physics and Chemistry have one today.

Who writes the notes?

Contributors, including senior students who write and proofread them. You can join them.

The discussion board is new. Ask the question you lost a mark on, and mark the reply that worked.

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Want to write or proofread notes for your own class?

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168 days to 27 April 2027. Plenty of time, if you start tonight.

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TODAY  ·  10 NOV24 WEEKS27 APR 2027
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