We had another data retreat today so I left plans with the sub. The pre-algebra students worked on Molly Mathematician’s Locker Combination Predicament.

*Molly Mathematician can’t remember her gym locker combination. The Physical Education teacher won’t provide her with the combination, but did give her the following clues about the combination:*

*The 3 numbers in the combination are between the numbers 15 and 30.*
*The sum of the numbers is 70.*
*When you square each number in her locker combination the digits 1 – 9 will appear only once in the digits of the 3 square numbers.*
*What is the combination to Molly’s locker?*

I created a new handout for the task that includes criteria for success.

*Criteria for success: *

*While your work is a result of a collaborative effort, your responses are individual*
*You have explained your approach and reasoning plus described any patterns you’ve discovered*
*Your work is organized and clearly labeled so that someone not knowing the problem can understand your thinking*

Standard math students reviewed number properties. For homework they’ll practice using this assignment.

I can’t take credit for this snappy assignment. Colleagues at our sister middle school created it.

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