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Students write and solve linear equations to describe cooking times.

Students use substitution to calculate a missing variable in algebraic expressions of practical situations.

Students select the correct factorisation of algebraic expressions.

Students write algebraic expressions with indices which make equations true.

Students identify whether algebraic equations are always, sometimes, or never true, and explain their reasoning.

Students solve algebraic problems about people's ages using information given.

Students select from a range of given numbers to complete a 4 x 4 'addition number square' with given row and column totals.

Students are required to re-arrange various algebraic equations.

Students complete open number sentences to show their understanding of equality.

Students use tens frames to show how to add and take away numbers to 20.

Students calculate the cost of hiring a search and rescue helicopter and compare this cost with another helicopter company's charges.

Students use the commutative property to find missing numbers in equations and explain the property.

Students show how they find the value of an unknown number in a range of linear equations.

Students expand and simplify algebraic expressions based on measurements of a path around a lawn.

Students write the simplest algebraic expressions for the lengths and area of parts of a composite shape, then solve these expressions using substitution. They then solve an equation that relates an algebraic expression to a given side length.

Students use plastic money to explore and continue a number pattern about going to a disco. They then describe the pattern.

Students solve and write appropriate equations for story problems.

Students complete a table to show the amount of money paid for work, and finish a rule to describe the relationship.

Students identify parts of an algebraic equation and use the equation to calculate dog's weights for a given total.

Students use a linear equation to solve a mathematical problem involving the length and width of a framed picture.

Students show temperature movements on a number line including negative numbers, and write the movement as an equation.

Students solve a number of mathematical problems for practical situations involving total amounts, age and time.

Students write and solve linear equations for story problems related to a school dance.

Students use linear equations to solve mathematical problems for money deposited and withdrawn from a bank account. They also identify parts of the related linear equation.

Students solve problems comparing and balancing amounts of money.