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Concept explainers
* The ratio of Frank’s marbles to Huang’s marbles is 3 to 2. After Frank gives
a. Explain how to solve the problem with the aid of a strip diagram.
b. Create an easier problem for your students by changing the ratio, 3 to 2, to a different ratio and by changing the number of marbles, 30, to a different number of marbles. Make sure the problem has a sensible answer. Explain how to solve the problem.
c. Create a problem of about the same level of difficulty as the original problem by changing the ratio, 3 to 2, to a different ratio and by changing the number of marbles, 30, to a different number of marbles. Make sure the problem has a sensible answer. Explain how to solve the problem.
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Mathematics For Elementary Teachers With Activities
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