Math Arguments

Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.

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Item 390

Helpers

If it takes me 60 minutes to cook dinner by myself, and 90 minutes if one of my kids is "helping" me, how long would it take her to do it herself?

What other mathematical aspects of this caught your attention? What do you wonder about the situation?

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Notice, Wonder
Matt Enlow
PREALG

Source: Matt Enlow

If it takes me 60 minutes to cook dinner by myself, and 90 minutes if one of my kids is "helping" me, how long would it take her to do it herself? — Matt Enlow (@CmonMattTHINK) May 10, 2014

More Information:
Noticing and wondering is a tool to help students:
- Understand the story, the quantities, and the relationships in the problem.
- Understand what the problem is asking and what the answer will look like. Have some ideas to begin to solve the problem.
More Here at NCTM