Children are cursed on entering the classroom and must follow a multi-step addition and subtraction challenge to create the counter-curse that will allow them to safely leave the room. Themed around Harry Potter.
Focuses on use of estimation to allow for accurate problem solving and identification of your own errors. Accurate retrieval of information then use of column addition/subtraction also worked on.
L.O. - To implement estimation as a self-check for addition and subtraction.
Achieve: I can choose appropriate rounded values to perform estimates.
Challenge: I can regularly self-check my workings using estimations.
Aspire: I can explain why my estimation provides a good self-check for the answer.
Maths. Numeracy lesson for KS2, year 4, 5 or 6 depending on how you aim it. Rounding starter activity.
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