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Mathematics (2019) Grade(s): KG

MA19.K.20

Identify shapes as two-dimensional (lying in a plane, flat“) or three-dimensional (“solid”).“

Unpacked Content

Knowledge

Students know:
  • Characteristics of 2D and 3D shapes.

Skills

Students are able to:
  • Use geometric reasoning and visual characteristics of shapes to designate shapes as 2D or 3D.

Understanding

Students understand that:
  • geometrics shapes can be grouped into classes of 2D or 3D shapes based on their physical characteristics.

Vocabulary

  • Two dimensional
  • Three dimensional
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