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## The Cake Contest

Students used a pinch of this (a 3D printer and geometry software) and a cup of that (various volume formulas) to complete a tiered task.

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## December 2016 January 2017 Problems

A monthly set of problems is aimed at a variety of ability levels.

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## Moving to a New City

A real-world problem about the cost of moving one's household from one city to another.

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## Using Scaffolding to Scale-up Justifications

Encouraging students to justify earlier as they attempt to solve an open-ended task can lead to greater understanding and engagement.

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## Zero Pairs: Learning about Additive Inverses

This department explores a game used to help students learn about additive inverses, or “zero pairs.” Authors describe some common reasoning that students used while playing the game and provide activity sheets geared toward students in grades 5–7.

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## Attending to Precision with Secret Messages

Introduce your students to a fun and innovative game to encourage precise communication

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## Making Squares

### little problems with big solutions

To elicit creative student thinking, this open-ended problem asks solvers to measure as many squares as possible using a certain size of cardboard.

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## November 2016 Problems

A monthly set of problems is aimed at a variety of ability levels.

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## Patterns on a Calendar

### big solutions to little problems

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

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## Chivalry, at Least “Math Chivalry,” Is Not Dead!

A cartoon exploring a problem about order of operations is coupled with a full-page activity sheet.