4th Grade Math Lesson

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• 4th Grade Math Lesson
• Laura Verzi
• Computers as a Teachers Aide
• June 25, 2007
• Assignment 4

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• This lesson satisfies the NJCCCS 4.1 A 1-4
  Geometric Properties.

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Polygons

• Polygons are closed plane figures with straight
  sides.
• They are named by the number of sides or angles
  they have.

Which of these shapes are polygons?
4
Triangle

• Triangles have 3 sides and 3 angles.

5
Quadrilateral

• A quadrilateral has four sides and four angles.

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Pentagon

• A pentagon has 5 sides and 5 angles.

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Hexagon

• A hexagon has 6 sides and 6 angles.

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hexagon
pentagon

• The patterns on many soccer balls are created by
  using pentagons (5 sides and angles) and hexagons
  (6 sides and angles).

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Octagon

• An octagon has eight sides and eight angles.

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Name the Polygon