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Why Does That Work?

This activity is produced by the Maths Magic project. Why Does That Work? describes a simple trick using a domino. Students are asked to use algebra to explain why the trick works. The lesson plan links to Numeracy Strategy material Mind readers and What's the trick? assessing students’ progress in mathematics at Key Stage Three which suggests a variety of number tricks that can be explained using algebra. The teacher notes provides teaching suggestions, extensions and ways the material can be adapted.

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