Basic periods of trigonometric functions Student activity Play

Basic trigonometric functions Whiteboard presentation Play

Basic trigonometric functions Class activity Play

Basic trigonometric identities Whiteboard exercise Play

Basic trigonometric identities Student activity Play

Changing the sign of an angle Student activity Play

Chord bisector goes through the centre Student activity Play

Circle theorems Class activity Play

Circle theorems Whiteboard presentation Play

Circles and discs Slideshow Play

Circles and discs Student activity Play

Circles and ovals Student activity Play

Circles and quadrants Simulation Play

Circles in the coordinate system Animation Play

Circles inscribed and circumscribed Whiteboard presentation Play

Circles inscribed and circumscribed Class activity Play

Circles inscribed and circumscribed around a trapezium Student activity Play

Circles inscribed into quadrilaterals Student activity Play

Circles inscribed into quadrilaterals Simulation Play

Circles on water Animation Play

Circumscribed circles Whiteboard exercise Play

Common tangents Student activity Play

Common tangents Simulation Play

Common tangents to the curves Whiteboard exercise Play

Completing circles Whiteboard exercise Play