Monday, February 19, 2018

Today’s recommendation is Which One Doesn’t Belong? : a Shapes Book by Christopher Danielson.

It would be an interesting resource to bring into a math classroom especially when doing geometry but not necessarily only limited to mathematics. This book presents four varying shapes on a page and asks the viewer to select which one doesn’t belong.

There is no wrong answer.

Each shape has some feature that makes it distinct from the others. This promotes critical, analytical thinking and rationalizing skills as students look to justify their answers.
There is a teacher’s guide that I haven’t seen yet but the publisher’s information suggests that it will promote mathematical thinking across many grades going beyond the obvious geometry connections.

I do think the student book is quite clever in the way it gets the viewer to work through the reasoning behind their selections but then also to see how the other shapes are different in their own ways. I see this as good (and fun) practice for developing logic thinking skills.

I’m recommending this for elementary and middle grades. I have hopes that the teacher’s guide will have suggestions to use with high school students.


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