The reasons for using circles Animation Play

The red line Whiteboard exercise Play

The relationship between centripetal force and the radius of the circle Animation Play

The rhombus and the circle Student activity Play

The rhombus and the circle Whiteboard exercise Play

The rolling wheel Whiteboard exercise Play

The running truck Whiteboard exercise Play

The segments in the circle Whiteboard exercise Play

The shapes made from the circle Animation Play

The sine and coordinates of the points Animation Play

The sine of an arbitrary angle Student activity Play

The sine rule Whiteboard presentation Play

The sine rule Class activity Play

The small and the big circles Whiteboard exercise Play

The square inscribed in a circle Whiteboard exercise Play

The square inscribed in a circle Animation Play

The tangent Student activity Play

The tangent Whiteboard presentation Play

The tangent Class activity Play

The tangent as a coordinate Animation Play

The tangent from a point to a circle Student activity Play

The tangent from a point to a circle Whiteboard exercise Play

The tangent of an arbitrary angle Student activity Play

The tangent to a circle Student activity Play

The tangent to a circle Whiteboard exercise Play