Goal: Think as mathematicians! Calculate quickly by chunking, changing the form, or connecting to math you know.
Task found in the Math Innovations Course 2 textbook
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If I look at 7/12 as 5/12 + 2/12 is that an example of “changing the form”?
Yes, it is! I find it’s important to highlight for students so that they see benefits of ‘unsimplified’ or ‘complicated’ form, rather thinking changing the form only means to simplify.