A line going through two points Animation Play

A line in 3-D going through two points Simulation Play

A line passing through two points Simulation Play

A triangle cut into two right-angled triangles Whiteboard exercise Play

Alcohols with two or more hydroxyl groups Animation Play

Alcohols with two or more hydroxyl groups Whiteboard exercise Play

Alcohols with two or more hydroxyl groups Student activity Play

An equation with two variables Whiteboard exercise Play

An equation with two variables Student activity Play

Angle between two vectors Student activity Play

Angle between two vectors Whiteboard exercise Play

Angle between two vectors – acute, obtuse and right Whiteboard exercise Play

Angle between two vectors – acute, obtuse and right Student activity Play

Applying the chain rule for more than two functions Whiteboard exercise Play

Applying the chain rule for more than two functions Whiteboard exercise Play

Applying the chain rule for more than two functions Whiteboard exercise Play

Approximating square root of two Whiteboard exercise Play

Are the two triangles similar? Animation Play

Are two angles equal? Student activity Play

Are two angles equal? Whiteboard exercise Play

Are two polygons similar? Animation Play

Area between the graphs of two arbitrary functions Whiteboard exercise Play

Area between the graphs of two arbitrary functions Student activity Play

Area between the graphs of two functions of different sign Student activity Play

Area between the graphs of two functions of different sign Whiteboard exercise Play