ACMNA055
Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation
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Split Strategy
A 60-minute lesson designed to progress students' understanding of mental addition by partitioning numbers into place value to help them find a total.
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Bridging to Ten
A 60-minute lesson designed for students to recall 'friends of ten' facts and use this knowledge to solve addition sums.
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Finding Your Strategy
A 60-minute lesson designed to reinforce that students can choose to use different addition strategies in different situations.
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Jump Strategy
A 60-minute lesson designed to explore the jump strategy for adding two- and three-digit numbers.
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Trade It!
A 60-minute lesson in which students learn how to trade when subtracting.
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Frolic with Fact Families
A 60-minute lesson in which students explore the relationship between the members of fact families.
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Aim for a Zero-Tail
A 60-minute lesson in which students learn the strategy of making ten to subtract.
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What Do You Know?
A 60-minute lesson in which students will revise strategies such as counting on, counting back, subtracting 10, and using known number facts.
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Number Boards
A 60-minute lesson designed to explore the use of number boards/hundreds charts when adding numbers.
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Concrete Materials
A 60-minute lesson to reinforce students' understanding of basic addition principles, using concrete materials.
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Exploring Subtraction Strategies – Assessment
An assessment task in which students will demonstrate their knowledge and understanding of subtraction strategies.