Looking at Shapes: Open or Closed?

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Kids sometimes don't distinguish between a shape whose sides are closed and one that has an open side, but it's important for kids to understand that a square is not a square unless all its sides are connected. Help your first grader grasp this concept with this worksheet that asks him to classify each shape as open or closed. It's a good way to get him thinking about what makes a shape a shape.

First Grade Geometry Worksheets: Looking at Shapes: Open or Closed?
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