A circle circumscribed about a triangle Whiteboard exercise Play

A circle circumscribed about a triangle Student activity Play

A closer look at the sine Whiteboard exercise Play

A closer look at the sine, the cosine and the tangent Whiteboard exercise Play

A closer look at the trigonometric ratios Student activity Play

A couple of forces Animation Play

A figure under reflection in the coordinate system Animation Play

A grasshopper and numbers Student activity Play

A grasshopper and numbers Whiteboard exercise Play

A ladybird Whiteboard exercise Play

A ladybird's trip Whiteboard exercise Play

A ladybird's trip Student activity Play

A leaning tree Student activity Play

A plane and the wind Student activity Play

A regular pentagon Student activity Play

A sequence Animation Play

A sequence – matchsticks Whiteboard exercise Play

A simple identity Student activity Play

A snail's trip Whiteboard exercise Play

Accuracy of calculations with the mid-ordinate rule Whiteboard exercise Play

Accuracy of calculations with the mid-ordinate rule Student activity Play

Accuracy of Simpson's composite rule Student activity Play

Accuracy of Simpson's composite rule Whiteboard exercise Play

Accuracy of Simpson's rule Whiteboard exercise Play

Accuracy of Simpson's rule Student activity Play