2-D representation Animation Play

2-D representations of 3-D objects on triangular dotty paper Student activity Play

A big cube made of 27 small cubes Whiteboard exercise Play

A cube Whiteboard exercise Play

A cube Student activity Play

A cube Whiteboard exercise Play

A cube Student activity Play

A diagonal of a cube Animation Play

A diagonal of a cube Animation Play

A lead cube Animation Play

A linear function in the argument Whiteboard exercise Play

A linear function in the argument Student activity Play

A negative value of the discriminant Whiteboard exercise Play

A negative value of the discriminant Student activity Play

A positive and a negative square root Whiteboard exercise Play

A puzzle on a painted cube Whiteboard exercise Play

A puzzle on a painted cube Student activity Play

A segment square root of 2 units long and others Animation Play

A square root Student activity Play

A square root Animation Play

Acid rain destroys forests Animation Play

Adaptation of plants to life in terrestial environment Whiteboard exercise Play

Adaptation of the root to absorbing water from the soil Slideshow Play

Adaptations of plants to life on land Whiteboard exercise Play

Adaptations of plants to life on land Student activity Play