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Performing Number Magic A9

In this resource from the DfE Standards Unit, students analyse simple number 'tricks', and explain how they work, using algebra. They then try to create their own variants of the trick, making it more impressive. Students will: develop an understanding of linear expressions and equations; make simple conjectures and generalisations; add expressions, ‘collecting like terms’; use the distributive law of multiplication over addition in simple situations; develop an awareness that algebra may be used to prove generalisations in number situations. The activity begins by inviting learners to look at some simple number magic, which is best done using the computer software Number magic that is provided, but it can also be done using paper copies of the tricks. (GCSE Grades A - F).

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