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Let's Investigate Triangles

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Circles, Circles

Age 5 to 11 Challenge Level:
 

Here are some circles which are coins, counters, and rings. I used 10 coins, 19 counters, and 12 rings.

I wonder how many coins, counters, and rings I would need to make the next size up for each?

What is your idea of the 'next size up'?

My shapes are a triangle, a hexagon, and a rectangle.

What shapes could you make by putting circles together?

How many would you use?

How many would you need for the next size up?