The Variable – Volume 3, Issue 4

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Volume 3, Issue 4 (September/October 2018) of The Variable, periodical of the Saskatchewan Mathematics Teachers’ Society, has just been released! From Kindergarten to Grade 12, there is something for everyone.

In this month’s issue, Bryan Penfound shares a classroom episode where his students learned what makes a function functionJames Willingham, Jeremy Strayer, Angela Barlow, and Alyson Lischka discuss the value of discussing students’ mathematical mistakes and share strategies for helping students learn from their errors; and Ilana Horn discusses the notion of ambitious instruction and how it can support the goal of successful outcomes for all students. You will also find our regular features, including Shawn Godin‘s “Alternate Angles,” which takes an in-depth look at intriguing problems and their solutions; “Intersections,” which will bring you up to date on upcoming professional development opportunities; and “Problems to Ponder,” where you will find a variety of interesting tasks for your K-12 classroom.

Last but not least, this month’s issue features the latest installment of “Math Ed Matters by MatthewMaddux,” a column by Egan Chernoff telling “slightly bent, untold, true stories of mathematics teaching and learning.” In this issue, Chernoff shares his top ten list of little signs of innumeracy, from math problems “stumping the Internet” to Photomath. 

To access this month’s issue, head to, where you will find this and all issues of The Variable free to read and download.

We hope you find this publication relevant and valuable for your teaching or personal interest – and if so, that you share it with your colleagues and invite them to join the conversation! If you have feedback, questions, or would like to contribute, we would love to hear from you – contact us at

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