Saturday, 08 August 2009 | 1 Comment
This week, Year 9 were looking at finding the perimeter of shapes that include curves (parts of a circle).
Along the way, I remembered I had this photo of a playground in my local area.
Here it is in Google Maps (sorry, no link to the actual site):
From my notes when I took the photo, the radius of the circle is 11.75m.
How could you use this?
Having only got a projector in my classroom this year, this is the sort of stuff I’ve been wanting to do since I started teaching.
Feel free to take this image and use in your own classroom. Obviously for a more senior/advanced class you could calculate other things like the length of an arc formed by the two seats.
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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
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