pptx, 265.47 KB
pptx, 265.47 KB
Pupils often find it difficult to visualise the centre of rotation for 90 degree rotations. So instead of the trial and error approach that they often employ, try this instead.

I wrote this short PowerPoint presentation to demonstrate how it works. There are 3 examples and it finally makes use of the often redundant set square!

Do let me know how it goes.

Thanks

Paul
Creative Commons "Sharealike"

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