24 x 21 = 42 x 12

This seemingly simple prompt leads to a rich task which students can explore in a variety of ways.

Lesson notes 1 contain a variety of supplementary questions and suggested methods of developing the mathematics associated with the prompt.

Lesson notes 2 suggest a more structured approach to using the prompt using headings of orientation, exploration, planning, solving, reflecting and evaluating.

Mathematical notes 1 explores the general case whilst Mathematical notes 2 considers the generation of algorithms to generate further cases accompanied by supporting material.

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This resource is part of Inquiry Maths