A story of three goats Student activity Play

A symmetrical triangle on non-squared paper Student activity Play

A symmetrical triangle on squared paper Student activity Play

A symmetrical triangle on squared paper Whiteboard exercise Play

A table Whiteboard exercise Play

A ten-day bike trip Whiteboard exercise Play

A term's place in a sequence Student activity Play

A term's place in a sequence Whiteboard exercise Play

A tourist Animation Play

A tower Whiteboard exercise Play

A train Whiteboard exercise Play

A trapezium and a kite Animation Play

A trapezium and a kite – conclusions Whiteboard exercise Play

A triangle cut into two right-angled triangles Whiteboard exercise Play

A triangle in a coordinate system Whiteboard exercise Play

A triangle symmetrical with respect to a line Whiteboard exercise Play

A triangle symmetrical with respect to a line Student activity Play

A typical compound Slideshow Play

A typical food web Student activity Play

A woodland tree food web Student activity Play

A woodland tree food web Illustration Play

About cells Student activity Play

About moment Student activity Play

About petroleum Whiteboard exercise Play

About the experiment Whiteboard exercise Play