Possible positions of two circles Animation Play

Prefixes and suffixes for common functional groups Chart Play

Primitive period of the tangent Whiteboard exercise Play

Primitive period of the tangent Student activity Play

Properties of trigonometric functions of a general angle (1) Whiteboard presentation Play

Properties of trigonometric functions of a general angle (1) Class activity Play

Properties of trigonometric functions of a general angle (2) Whiteboard presentation Play

Properties of trigonometric functions of a general angle (2) Class activity Play

Proving identity for the tangent Whiteboard exercise Play

Quadrilaterals with incircle Animation Play

Range of trigonometric functions Student activity Play

Range of trigonometric functions Whiteboard exercise Play

Rational equations Whiteboard exercise Play

Reading out from the graph the  x- and  y-intercepts of a linear function Simulation Play

Reciprocals of basic trigonometric ratios Student activity Play

Recover the function Student activity Play

Recover the function using a gradient and a tangent Whiteboard exercise Play

Recover the function using a tangent Whiteboard exercise Play

Rectangles Student activity Play

Reduction formulas due to periodicity Whiteboard exercise Play

Reduction formulas due to periodicity Student activity Play

Reduction formulas for the tangent Animation Play

Rewriting the sine using double-angle formulas for the tangent Animation Play

Secant and tangent of a function Animation Play

Second-order derivative at a local extremum Student activity Play