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Students describe algebraic expressions in words.

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

Students explore multiplicative relationships by completing multiplication equations.

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

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

Students use number properties to solve problems without calculating.

Students use the additive identity and the commutative property to assist them to solve simple equations without calculating.

Students complete addition and subtraction equations that explore part-whole relationships.

Students explore the concept of equality by deciding whether addition sentences are true, false or not proper number sentences.

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

Students exploit additive identity property to find missing numbers in addition and subtraction equations.

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

Students use tables, graphs, and equations to find the break-even point for two companies who charge for postage according to different rules.

Students find the unknown for a range of equations that require number property knowledge and understanding of relational thinking.

Students calculate the repair charges of two different garages, graph them, and explain the results.