Sunnyvale
July 10, 2021, 5:05:00 PM
Saturday
Level 4

Mr. Rodney

Target 1​

Lesson Type:

New

Geometry

:

Shape

Classify 2D and 3D figures based on the basic properties of shapes.

Supporting targets:
1:

Identify polygons by their defining attributes.

2:

Differentiate between regular and irregular polygons.

3:

Differentiate between convex and concave polygons.

4:

Differentiate between complex and simple polygons.

5:

Grade:

5th

Vocabulary:

Polygon, Concave, Convex, Regular, Irregular, Simple, Complex

Activities:

  • Reviewed and discussed properties of polygons, i.e., enclosed figure, all straight sides, and 2D.
  • Given an assortment of polygons, students worked together to classify them into 2 different groups based on the characteristics and properties they chose.
  • Without being prompted by how the polygons should be sorted, students were able to determine the 3 ways all polygons can be classified: regular/irregular, concave/convex, simple/complex.

 

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Target 2

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Target 3

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