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Saturday, 15 May 2010 | 2 Comments

This is a fairly simple activity that allows for something different in the teaching of Pythagoras’ Theorem.

Take your class outside, find a nice flat area of concrete, and get them drawing some big triangles. Students then check the length of the third side by measurement and calculation.

The very brief lesson plan:

- Take pen, book, calculator. Find a partner to work with.
- Show the group what we’re going to do:
- draw a triangle (30cm, 40cm)
- measure the hypotenuse

- do the calculation
- Students do two triangles on their own (see worksheet):
- draw
- measure

- calculate

Posted in • Activity • Outside • Lesson Idea • Pythagoras’ Theorem • Printable • Worksheet | Short URL: http://mths.co/1827

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**Simon Job** — eleventh year of teaching maths in a public high school in Western Sydney, Australia.

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