Describing class intervals Student activity Play

Describing class intervals – alto singers Whiteboard exercise Play

Describing class intervals – speed of light Whiteboard exercise Play

Examples of description of class intervals Animation Play

Grouping intervals Whiteboard exercise Play

Intervals of monotonicity Animation Play

Intervals with a zero Whiteboard exercise Play

Reading intervals of monotonicity from the graph Whiteboard exercise Play

Reading intervals of monotonicity from the graph Student activity Play

The modulus and intervals Student activity Play

The modulus and intervals Whiteboard exercise Play

The modulus function Whiteboard presentation Play

The modulus function Class activity Play