Friday, September 2, 2011

Geometry: 2-D Shapes with Geoboards

Using GEOBOARDS is a lot of fun for kids. The geoboards can be used to reinforce two-dimensional shapes (polygons). 

Polygons have length and height (no depth). Polygons are closed figures made with 3 or more line segments (sides), with only one (1) interior space.

Younger students can practice making common shapes: triangles, squares, and rectangles.

Older students can also make
  • pentagons (5 sides, 5 corners)
  • hexagons (6 sides, 6 corners)
  • heptagons (7 sides, 7 corners)
  • octagons (8 sides, 8 corners)
  • nonagons (9 sides, 9 corners)
  • decagons (10 sides, 10 corners)

 Vocabulary:  2-dimensional, polygon, side, corner, straight, closed figure, line,
                       interior, line segment, angle, vertex (corner) 

Used hair bands instead of elastics here!

Geoboards come in different sizes.

11 x 11 Pin Geoboard   Double-Sided 7" Geoboard with Rubberbands

  11 x 11 Geoboard


  1. We love our geoboards. But I never thought of using hair bands with them. Thanks for the great idea!

  2. Thanks Scott,
    My husband liked the idea too! I got them at Dollar Tree. Love your blog!
    Have a great holiday weekend.
    Marcia :)

  3. Nice! (Creative use of common household items!) Thanks for linking up!
    Cindy @ love2learn2day



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