# Series Math Routines with Kristin Gray: Kindergarten : Which One Doesn't Belong: Kindergarten

Math.K.G.B.4

Common core State Standards

• Math:  Math
• K:  Kindergarten
• G:  Geometry
• B:  Analyze, compare, create, and compose shapes
• 4:
Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/\"corners\") and other attributes (e.g., having sides of equal length).

Download Common Core State Standards (PDF 1.2 MB)

## Which One Doesn't Belong: Kindergarten

Grade K / Math / Tch DIY
17 MIN
Math.K.G.B.4

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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.

## Discussion and Supporting Materials

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!

Recommended (0)
Where would you go from here with this class? I like the last question: What is a shape? Perhaps an exploration of different figures. Is it a shape or not a shape?
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I have been thinking about incorporating this strategy of reasoning with my kiddos. Thank you.
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### School Details

Shields (Richard A.) Elementary School
910 Shields Avenue
Lewes DE 19958
Population: 723

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Kristin Gray
Math / Kindergarten 1 2 3 4 5 / Teacher

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