METRONMETHOD. REASON. LEARN.
About Metron

Understanding is for everyone.

Metron is a free collection of clear maths and physics lessons for teenagers and adults. You can begin with first principles, rebuild a forgotten skill or follow an everyday question.

A method, not a race

See an idea, reason through an example, then try it. Lessons use plain language and show why each calculation step works. There is no timer or public score.

What is available

The first release contains 20 mathematics lessons, 15 physics lessons, eight Everyday Labs and ten interactive tools. The wider pathways show upcoming topics honestly. Every published lesson has worked examples and four practice questions.

Independent learning

Metron is not an official school, qualification provider or examination authority. It makes no claim of official curriculum alignment. Confirm curriculum-specific requirements with your school or education authority.

Open about the models

Examples simplify the world so an idea can be examined. Physics assumptions and calculator limits are stated beside the activity. Work through a result yourself and check whether the assumptions fit your situation.