Here is an 'expert' video of how to use reversibility. That is when you flip a subtraction problem into an addition problem to help you solve it.
Monday, 1 April 2019
Maths Strategies
Some of us in TKT have been developing our repertoire of strategies to add and subtract. We use NAPE to assess ourselves in everything we do. To be an expert we need to be able to teach others how to use the strategy.
Here is an 'expert' video of how to use reversibility. That is when you flip a subtraction problem into an addition problem to help you solve it.
Here is an 'expert' video of how to use reversibility. That is when you flip a subtraction problem into an addition problem to help you solve it.
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