A mirror and a light bulb Student activity Play

A mirror and a light bulb Simulation Play

A mirror and a light bulb Animation Play

A parabola and a circle Student activity Play

A parabola and a circle Whiteboard exercise Play

A perpendicular through a point off the line Student activity Play

A perpendicular through a point off the line Simulation Play

A perpendicular through a point on the line Student activity Play

A perpendicular through a point on the line Simulation Play

A point of tangency Whiteboard exercise Play

A point, a radius and an angle Animation Play

A snail's trip Whiteboard exercise Play

A square circumscribed about a circle Student activity Play

A square in a coordinate system Whiteboard exercise Play

A symmetrical triangle on squared paper Student activity Play

A triangle in a coordinate system Whiteboard exercise Play

Aberration Animation Play

Accurately determining an unknown molarity of acid/base by titration Whiteboard exercise Play

Accurately determining an unknown molarity of acid/base by titration Student activity Play

Acid-base titration Class activity Play

Acid-base titration Whiteboard presentation Play

Adding common fractions and decimals Student activity Play

Aldehydes and ketones Whiteboard presentation Play

Aldehydes and ketones Class activity Play

Algebraic expressions – common factors Whiteboard exercise Play