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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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## 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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## October 2016 Problems

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

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## Riding the RAFT

Writing about mathematics holds a wealth of benefits for students. When students are given opportunities to write in math class, it helps develop mathematical thinking and language (Carter 2009; McCarthy 2008; Yang 2005), encourages self-reflection (Carter 2009; Danielson 2010; O'Kelley 2013), and provides a better way to organize ideas (Linhart 2014; Rogers 2014). Many teachers incorporate journaling and other types of reflective writing into their instruction already (Sjoberg, Slavit, and Coon 2004; Sanders 2009), but what about other forms of writing? NCTM states the importance of writing, in that students in the middle grades should be “more explicit about basing their writing on a sense of audience and purpose” (NCTM 2000, p. 62). How can we help students develop this important skill in math class?.

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## Odd Shape Out

### 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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## September Problems

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