A grasshopper and numbers Whiteboard exercise Play

A grasshopper and numbers Student activity Play

An example of a proof Student activity Play

An interesting number Student activity Play

Applying the remainder theorem Whiteboard exercise Play

Checking divisibility Animation Play

Checking divisibility by 11 Whiteboard exercise Play

Checking divisibility on a calculator Student activity Play

Divisibility Student activity Play

Divisibility by 11 Student activity Play

Divisibility by 11 Whiteboard exercise Play

Divisibility by 2, 4, 5 and 10 Student activity Play

Divisibility by 2, 4, 5 and 10 Whiteboard exercise Play

Divisibility by 3 Whiteboard exercise Play

Divisibility by 3 and 9 Student activity Play

Divisibility by 7 Student activity Play

Divisibility by 8 Student activity Play

Divisibility by 8 Whiteboard exercise Play

Divisibility by 9 Whiteboard exercise Play

Division and divisibility Student activity Play

Division with remainder Student activity Play

Division with remainder – positive numbers Whiteboard exercise Play

Examples of divisibility Animation Play

How many are there? Animation Play

How many are there? A more difficult problem Student activity Play