Which doesn t belong and why

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which doesn t belong and why

Which One Doesnt Belong?: A Shapes Book by Christopher Danielson

Which One Doesn’t Belong? has won the Mathical Book Prize, which will be presented to Christopher Danielson at the National Math Festival in Washington, DC on April 22, 2017. The Mathical Book Prize is an annual award for fiction and nonfiction books that inspire children of all ages to see math in the world around them.

Every colorful page of Christopher Danielson’s children’s picture book, Which One Doesn’t Belong?, contains a thoughtfully designed set of four shapes. Each of the shapes can be a correct answer to the question “Which one doesn’t belong?” Because all their answers are right answers, students naturally shift their focus to justifications and arguments based on the shapes’ geometric properties.
In the companion teacher’s guide,(978-1-62531-081-1)  Danielson shows how to facilitate rich discussions and teach mathematical argumentation using Which One Doesn’t Belong? He models how to listen closely and respectfully to students’ ideas about shapes. Danielson synthesizes research about how children learn geometry, discusses the role of geometry in the mathematics curriculum, and gives plenty of practical advice about different ways to implement Which One Doesn’t Belong? in classrooms. He also discusses the mathematical ideas likely to emerge on each page and—drawing from his direct experience using Which One Doesn’t Belong? at several different grade levels—helps teachers anticipate and think about students’ likely answers.
Most curricula treat geometry as little more than vocabulary lessons. Which One Doesn’t Belong? and its accompanying guide are powerful, flexible resources teachers can use to provoke lively discussions and deep learning about shapes with students of all ages.
File Name: which doesn t belong and why.zip
Size: 48573 Kb
Published 24.12.2018

"Which One Doesn't Belong?" with Cousin Sal

Series: Math Routines with Kristin Gray: Kindergarten

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Subscribe to EDU for a bi-weekly digest of articles. Privacy Policy. A key theme of the Common Core State Standards for Mathematics is the need for students to use deeper mathematical thinking and reasoning skills rather than just memorizing procedures -- and to apply their understanding of mathematics by justifying conclusions and communicating them to others. What I think this means is that the Common Core math classroom is going to be a much livelier place, full of discussion and teamwork and talk. That's a wonderful thing. First name. Last name.


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Email: ZennedMath gmail. WODB made its way across the math community with a bang. For those of you not familiar with this activity there is a display of four items. The items could be numbers, expressions, shapes or images. Students are to reason about the similarities and differences between them. There are many versions of this routine out there. Howard County has Eliminate It!

A "Which One Doesn't Belong" routine encourages students to reason about the similarities and differences among a set of numbers, expressions, shapes, or images. Mary Bartz Mar 10, pm. I have done with my class comparing shapes and reason which one doesn't belongs ,helps kids think about the shapes: it is very interesting to hear their reasoning as to which ones they group together and why. Some group by color, size of the shape, curved or no curves two and three demensional types etc. Some kids find it difficult to sit and listen for very long so keeping it short and to the point for getting the concepts you want them to review would be useful. Getting them to make the shape with their body would be good movement too! Virginita McGrath Jun 25, pm.


  1. Steven Y. says:

    Continue to book preview.

  2. Philippe B. says:

    Which One Doesn't Belong?

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