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Summary
When we’re adding and subtracting, do evens make odds into evens? Do odds make evens odd? Which one has… more power!?
- Students explain *why* adding two evens always leads to an even.
- Students find the rules for even+odd, odd+even, and odd+odd and attempt to explain *why* these are rules.
- They do the same for subtraction: what happens when we subtract even-even, even-odd, odd-even, and odd-odd? Why?
- Finally, your students will consider, after all this, which has more power: evens or odds?
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