Math Arguments
180 Days of Ideas for Discussion in Math Class. (as of 9July2014, we're in overtime!)
Wednesday, August 6, 2014
209: Lewis Carrol's Roses
Nine roses are planted in a circle. If you find that tedious, show how you can rearrange the roses to get:
Eight rows of three-in-a-row.
Nine rows of three-in-a-row.
Ten rows of three-in-a-row.
from Lewis Carroll.
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