Common Core Math Vocabulary

Open Shape - Definition with Examples

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What is an open shape? 
In geometry, an open shape can be defined as a shape or figure whose line segments and/or curves do not meet. They do not start and end at the same point.
 

Here are some examples of open shapes. 

Open shapes two-dimensional start and end point not same

  Fun Facts

  • Here are some examples of open shapes. 
 

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Open shapes are incomplete.
Scribble away shapes on a sheet.
But, never make the ends meet!
 

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Instead of handing out worksheets to identify or draw open shapes, give your children playdough and matchsticks. Ask them to make different open shapes using play dough for curves and match sticks for lines segments. 
 

related math vocabulary Related math vocabulary

 

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