Comparing Strategies
In today's lesson, we will learn to compare strategies around subtraction. We will discuss how efficient some strategies are, such as shifting to preserve the 'same difference' and make calculations easier. Resources provided by NCETM (CC BY-NC-SA: https://creativecommons.org/licenses/by-nc-sa/4.0)
Video
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Lesson summary: Comparing Strategies
Time to move!
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For 5 mins...
Move around:
Walk
On the spot:
Chair yoga