Equalities with roots Whiteboard exercise Play

Equality of polynomials Student activity Play

Equality of polynomials of degree 3 Whiteboard exercise Play

Equality of polynomials of degree 5 Whiteboard exercise Play

Equality of tangent and cotangent Whiteboard exercise Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion (1) Student activity Play

Equality of two ratios: proportion (2) Student activity Play

How do we calculate x? Animation Play

Interpretation of the weighted mean Animation Play

More difficult problem involving proportion Whiteboard exercise Play

More difficult problem involving proportion Student activity Play

Multiplying and dividing powers of the same index Student activity Play

Problems involving proportion Student activity Play

Problems involving proportion Whiteboard exercise Play

School history competition Whiteboard exercise Play

School maths competition Whiteboard exercise Play

The equality of two ratios Animation Play

The second tangent theorem – equality in length Student activity Play

The second tangent theorem – equality in length Whiteboard exercise Play

Weighted means Student activity Play