Standard #: MA.7.A.5.2 (Archived Standard)


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Solve non-routine problems by working backwards.


Remarks


Solving non-routine problems involves creativity and critical thinking. Solution methods for non-routine problems are not prescribed. They may involve multiple representations, and are challenging for the learner.

Example: Alex had some marbles. On his birthday, his father doubled the number of his marbles. Alex gave 5 marbles to his best friend. Then he divided the remaining marbles into three equal groups and shared them with his two brothers. Each brother got 11 marbles. What was the original number of marbles that Alex had before his birthday? Did he make a good choice of sharing his marbles? What strategy would you use if you were Alex?

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