Circumference of a circle Animation Play

Circumscribed circles Whiteboard exercise Play

Circumscribed circles, inscribed polygons Animation Play

Circumscribed circles, inscribed polygons Student activity Play

Circumscribed polygons Animation Play

Coefficient of  x  squared Whiteboard exercise Play

Completely factorisation using the difference of squares Whiteboard exercise Play

Completing the perfect square Student activity Play

Completing the perfect square Whiteboard exercise Play

Completing the square Animation Play

Composed transformations of graphs using absolute values Student activity Play

Computing the square roots Whiteboard exercise Play

Consecutive powers Whiteboard exercise Play

Constructing a proof from a demonstration Student activity Play

Constructing a rectangle Student activity Play

Constructing a square Whiteboard exercise Play

Construction of a circle circumscribed about a quadrilateral Student activity Play

Construction of a circle circumscribed about a quadrilateral Simulation Play

Construction of a circle circumscribed about a triangle Student activity Play

Construction of a square Simulation Play

Construction of a square with given perimeter Simulation Play

Covering the square with figures Simulation Play

Cubes Student activity Play

Cyclic quadrilaterals Student activity Play

Decimal approximation of the square root of 5 Animation Play