Class 1 lever Animation Play

Class 2 lever Animation Play

Class one lever Animation Play

Class one lever Simulation Play

Class one lever Student activity Play

Class one lever Whiteboard exercise Play

Class two lever Student activity Play

Class two lever Simulation Play

Class two lever Whiteboard exercise Play

Class two lever Whiteboard exercise Play

Classes of enzymes Student activity Play

Classes of enzymes Whiteboard exercise Play

Classification of the sweet pea Whiteboard exercise Play

Describing class intervals Student activity Play

Describing class intervals – alto singers Whiteboard exercise Play

Describing class intervals – speed of light Whiteboard exercise Play

Establishing systematics – the work has only just begun Student activity Play

Examples of description of class intervals Animation Play

Finding the frequencies from a histogram Student activity Play

Finding the frequencies from a histogram Whiteboard exercise Play

Finding the interquartile range Whiteboard exercise Play

Finding the numbers in the given ratio Student activity Play

Frequency table Student activity Play

Grouping of species into larger units Student activity Play

Higher taxonomic ranks Student activity Play