Support · Stage 2 · Additive relations B
Support Recognise when mental strategies would be more efficient than a vertical algorithm for subtraction (Reasons about relations)
Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.
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Prerequisite dot points
Compare and evaluate strategies used to solve addition and subtraction problems, reasoning which strategy may be most efficient
Stage 2 · Additive relations A Draft mapping
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Use the complement principle of addition and subtraction (Reasons about relations)
Stage 2 · Additive relations A Draft mapping
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Use the compensation strategy to add and subtract (Reasons about relations)
Stage 2 · Additive relations A Draft mapping
No checked resources on this prerequisite dot point yet.