The results of a short test Animation Play

The speed of light Student activity Play

The stem-and-leaf diagram for years of experience Student activity Play

The sum to n terms of an arithmetic progression Student activity Play

The sum to n terms of an arithmetic progression – activities Student activity Play

The sum to n terms of an arithmetic progression Whiteboard exercise Play

The sum to n terms of an arithmetic progression – activitiy Whiteboard exercise Play

The  nth term of an arithmetic progression Whiteboard exercise Play

Throwing a die Whiteboard exercise Play

Using arithmetic series to identify the sequence Whiteboard exercise Play

Using mean bond enthalpies in calculations Chart Play

Using mean bond enthalpies in calculations Chart Play

Using mean bond enthalpies in calculations. Part 1 Student activity Play

Using mean bond enthalpies in calculations. Part 2 Student activity Play

Using the measures of central tendency Whiteboard exercise Play

Variability of data sets Student activity Play

Variability of data sets Whiteboard exercise Play

Variable types Animation Play

Variance Student activity Play

Variance Whiteboard exercise Play

Variance for grouped data Student activity Play

Weighed variance Animation Play

Weighted mean – price of the ice-cream Whiteboard exercise Play

Weighted mean – score of the course Whiteboard exercise Play

Weighted means Student activity Play