Parallel and perpendicular lines Animation Play

Period of the tangent function Animation Play

Periods of the tangent function Whiteboard exercise Play

Perpetual motion machine of the first and second kinds Animation Play

Phases of the second meiotic division Illustration Play

Points with no tangent Student activity Play

Points with no tangent Whiteboard exercise Play

Possible positions of two circles Animation Play

Primitive period of the tangent Student activity Play

Primitive period of the tangent Whiteboard exercise 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) Class activity Play

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

Proving identity for the tangent Whiteboard exercise Play

Quadrilaterals with incircle Animation Play

Races Animation Play

Range of trigonometric functions Whiteboard exercise Play

Range of trigonometric functions Student activity 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

Reduction formulas due to periodicity Whiteboard exercise Play

Reduction formulas due to periodicity Student activity Play