Revise the different types of angles and rules for calculating angles. This guide includes interactive activities and a quiz. NEW: Angles in parallel lines Revise alternate, correspondent or ...

In Pythagoras' harmony of the spheres, celestial bodies follow mathematical proportions that correspond to musical intervals.

Praxis the robot and Alan the “human man” find out about some of the contributions Pythagoras made to maths. They discover his famous theorem wasn’t all his idea. Expand on the geometrical proof shown ...

Measure twice, cut once. That’s sound advice, though no guarantee you won't measure wrong twice. Some measuring errors occur ...

Once similarity is established, the real fun begins: using proportions to find unknown lengths. The principle is simple: ...

Forgetting Units: Always include the correct units in your final answer. Failing to do so can result in a loss of points. Now ...