Cross-multiplication Student activity Play

Decreasing sequence Whiteboard exercise Play

Decreasing sequences Student activity Play

Diagram of a series Animation Play

Diagrams of geometric sequences and series Student activity Play

Difference of squares Student activity Play

Distance between points in 3-dimensional space Whiteboard exercise Play

Distance formula in 3-dimensional space Student activity Play

Division of rational numbers Student activity Play

Division of rational numbers Whiteboard exercise Play

Drawing dots Whiteboard exercise Play

Drawing dots Student activity Play

Example of decreasing sequence Animation Play

Example of recursive definition Animation Play

Examples of increasing sequences Animation Play

Extending sequences Animation Play

Factorisation Animation Play

Factorising by completing the square Student activity Play

Famous sequences – part 1 Student activity Play

Fibonacci sequence Animation Play

Finding a sequence formula Whiteboard exercise Play

Finding a sequence formula Student activity Play

Finding an expression for the nth term of a sequence Whiteboard exercise Play

Finding an expression for the nth term of a sequence Student activity Play

Finding arithmetic progression Whiteboard exercise Play