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This month: Stage 1&2Stage 2&3Stage 3&4Stage 4&5switch to US educational language

Threesomes

Problem | Hint | Solution | Printable page |
Stage: 3 Challenge Level: Challenge Level:1

Look at the Shear Magic


Interactivities. Visualising. Mathematical reasoning & proof. Cubes. Creating expressions/formulae. Invariance properties. Mixed triangles. Generalising. smartphone. Pinboard/geoboard.

Published July 2003.

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