Data scaling and standard deviation Student activity Play

Describing data – mean, median, mode Student activity Play

Describing data – mean, median, mode Whiteboard exercise Play

Determining the mean bond enthalpy for polyatomic molecules Animation Play

Distance between centres of two circles Whiteboard exercise Play

Dividing common fractions and decimals Whiteboard exercise Play

Dividing common fractions and decimals Student activity Play

Does zero in the denominator mean a vertical asymptote? Student activity Play

Does zero in the denominator mean a vertical asymptote? Whiteboard exercise Play

Energy (calorific) values for some common fuels Chart Play

Expectation (population mean) Student activity Play

Expressions with common fractions and decimals Whiteboard exercise Play

Expressions with common fractions and decimals Student activity Play

Factor out the common factor Student activity Play

Factor out the common factor Whiteboard exercise Play

Factor out the common factor – reversing a sign Student activity Play

Factorisation is not always possible! Student activity Play

Factorising algebraic expressions Student activity Play

Factorising perfect square trinomials – common factor first Whiteboard exercise Play

Factorising perfect square trinomials – common factor first! Student activity Play

Factors affecting mean bond enthalpies Animation Play

Find the mean Student activity Play

Finding common denominators Animation Play

Finding the arithmetic mean of the terms Whiteboard exercise Play

Finding the common ratio and the first term of the geometric series Whiteboard exercise Play