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Students explore the additive identity by deciding whether addition and subtraction number sentences are true or false.

Students find and write the numbers to complete equations that add to 10.

Students show their understanding of the properties of zero and one, by filling in the missing numbers or signs (+ or ×) in a range of equations.

Students work out the correct answers to arithmetic problems given an incorrect solution.

Students calculate the charges for lawn mowing expressed as rate plus set-up cost.

Students use addition and subtraction to solve story problems and show their equations.

Students interpret and graph linear equations of monthly charges for Internet access.

Students interpret a table about the amount of money raised for a run-a-thon, and graph the points represented.

Students write and solve linear equations to describe cooking times.

Students select the correct symbol or the correct number to make number sentences true.

Students identify parts of algebraic equations and use the equations to calculate temperatures in the Antarctic at different times of the day.

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

Students explore the additive identity by deciding whether addition and subtraction number sentences are true or false.

Students demonstrate their understanding of a linear algebraic equation to calculate the amount of money in a savings account.

Students solve puzzles by determining the unknown number from each set of statements.

Students solve and write appropriate equations for story problems.

Students interpret information from a flowchart to calculate the total costs of different sized groups staying in a motel for varying lengths. They also complete a linear algebraic equation to show the costs of one group's stay.

Students draw in the correct number of blocks needed to balance some scales and write equations for scales that show balance.

Students identify the different parts of algebraic expressions for the cost of repairing televisions.

Students select from 'less than', 'equal to', and 'greater than' to complete word equations about food amounts.

Students use linear equations to solve mathematical problems for money deposited and withdrawn from a bank account.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 explore multiplicative relationships by completing multiplication equations using a restricted range of numbers.

Students use number lines to show their understanding of commutativity.

Students use Cuisenaire rods or Animal strips to make up addition number sentences and record them.

Students interpret a graph of taxi company charges to show which company is cheaper and complete a rule for each company's charges. They also identify the distance at which each company charges the same amount.