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This is a similar triangles activity based on the real life science behind a total solar eclipse. Use the inspiring context of what a total solar eclipse is and why it causes a path of shadow on the Earth to engage students in proportional reasoning. Easier and harder version of the main task each followed by several extension tasks including a metric/imperial measures exercise and a practical ‘pin hole camera’ activity where students calculate distance to and/or size of the sun. Two tasks, answers, lesson plan, lesson bullet points, internet links and eclipse map included.
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Reviews

4.5

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andrewchambers

8 years ago
5

great - thanks

20fernbank

9 years ago
4

Looks great! Thanks for sharing.

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