Stemplot Animation Play

Stratified sampling Animation Play

Stratified sampling Student activity Play

Stratified sampling, quantitative qualities Student activity Play

Success of grasses Animation Play

Surveys Whiteboard exercise Play

Surveys Student activity Play

Survivorship curves and death rates in populations Whiteboard exercise Play

Survivorship curves and death rates in populations Student activity Play

Systematic sampling Student activity Play

Systematics – the classification of species Student activity Play

Taxonomy Class activity Play

Taxonomy Whiteboard presentation Play

Temperatures Student activity Play

Temperatures Whiteboard exercise Play

The ageing process Class activity Play

The ageing process Whiteboard presentation Play

The annual mean Whiteboard exercise Play

The arithmetic mean Student activity Play

The arithmetic mean for continuous data Whiteboard exercise Play

The arithmetic mean for continuous data Student activity Play

The arithmetic mean for continuous data Whiteboard exercise Play

The arithmetic mean of the measurements of the speed of light Whiteboard exercise Play

The arithmetic mean of the square distance Animation Play

The arithmetic mean of two numbers Animation Play