Understand a topic. Try it for yourself.
Explore 22 Maths and Physics topics, original worked examples and practice diagrams. Open a guide, then try a five-question quiz. No account is needed.
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Read the guide, cover the worked answer and try the example, then practise. Review the explanation when you miss a question. Your scores save in the browser where you use the app.
Choose AQA, Edexcel or OCR and Foundation/Higher tier in the quiz or exam builder. Shared skills are shared across boards; these are selected-topic practice resources rather than full exam papers.
GCSE Mathematics
Index laws
Multiply, divide and raise powers.
Notes, worked examples and practice →Algebra
Solve equations, expand brackets and substitute.
Notes, worked examples and practice →Percentages
Find percentages, increases and original prices.
Notes, worked examples and practice →Pythagoras
Find sides and distances in right-angled triangles.
Notes, worked examples and practice →Fractions
Simplify, add, multiply and divide fractions.
Notes, worked examples and practice →Ratio
Simplify ratios, share amounts and find missing quantities.
Notes, worked examples and practice →Probability
Single events, complements and successive draws.
Notes, worked examples and practice →Quadratics
Expand, factorise and solve quadratic expressions.
Notes, worked examples and practice →Straight-line graphs
Read gradients, intercepts and line equations from coordinate graphs.
Notes, worked examples and practice →Simultaneous equations
Solve pairs of linear equations and check their shared solution.
Notes, worked examples and practice →Angles
Use straight-line, triangle and parallel-line angle facts.
Notes, worked examples and practice →Averages and charts
Find mean, median, mode and range, including discrete frequency charts.
Notes, worked examples and practice →GCSE Physics
Energy
Work done, kinetic energy and gravitational potential energy.
Notes, worked examples and practice →Electricity
Potential difference, current, power and charge.
Notes, worked examples and practice →Motion
Speed, acceleration and distance.
Notes, worked examples and practice →Waves
Wave speed, frequency and wavelength.
Notes, worked examples and practice →Forces
Resultant force, mass, acceleration and weight.
Notes, worked examples and practice →Density
Density, mass, volume and unit conversions.
Notes, worked examples and practice →Motion graphs
Read journeys, calculate gradients and interpret permitted graph areas.
Notes, worked examples and practice →Pressure
Calculate pressure on solid surfaces and compare contact areas.
Notes, worked examples and practice →Heating and changes of state
Calculate heating energy and latent heat; explain temperature plateaus.
Notes, worked examples and practice →Radioactivity and half-life
Correct background counts, interpret half-life and explain random decay.
Notes, worked examples and practice →