Proof and demonstration of the formula for the area of a triangle Student activity Play

Proofs and assumptions Whiteboard exercise Play

Proofs and assumptions Student activity Play

Properties of enlargements, part I Student activity Play

Properties of rotation Whiteboard exercise Play

Properties of rotation Student activity Play

Properties of translations Whiteboard exercise Play

Properties of translations 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

Property of a perpendicular bisector Animation Play

Property of enlargement Simulation Play

Proportions in crossing lines cut by two parallel lines Student activity Play

Pulmonary and systemic circulations Whiteboard exercise Play

Pythagorean theorem Whiteboard presentation Play

Pythagorean theorem Class activity Play

Pythagorean triples Student activity Play

Quadrilaterals Student activity Play

Quadrilaterals Whiteboard exercise Play

Quadrilaterals Student activity Play

Quadrilaterals – reminder Animation Play

Ratios in paper sizes Animation Play

Ratios of sides in a triangle Animation Play