13 names from the phone book Whiteboard exercise Play

A different way of calculating the mean Animation Play

Book lungs in arachnids Illustration Play

Characteristic features of arthropods Whiteboard exercise Play

Colony of penguins Animation Play

Combinations Whiteboard exercise Play

Combinations Student activity Play

Combining data sets Student activity Play

Common mean Animation Play

Eclipses Animation Play

Eclipses Student activity Play

Examples of populations and samples Animation Play

Examples of the difference of sets Animation Play

Examples of the intersection of sets Animation Play

Examples of the union of sets Animation Play

Permutations Whiteboard exercise Play

Permutations Student activity Play

Population and sample Student activity Play

Rectangular board Whiteboard exercise Play

Respiration on land – tracheae and book lungs Whiteboard exercise Play

Respiration on land – tracheae and book lungs Student activity Play

Simple random sampling Student activity Play

Structure of arthropods Slideshow Play

The converse of the Pythagorean theorem Student activity Play

The difference of sets Student activity Play