Last week, we read The Greedy Triangle by Marilyn Burns. After listening to the story, the children made the different polygons from the story using geoboards and elastics. After that they recorded each polygon on geoboard paper, labeled it and showed its angles.

Here are some of the vocabulary words we have discussed and been learning about thus far:

  • triangle
  • quadrilateral
  • pentagon
  • hexagon
  • heptagon
  • octagon
  • nonagon
  • decagon
  • parallelogram
  • sides
  • corners
  • color
  • angles
  • flat
  • raised

Here are some photos from this lesson and our Polygon Scavenger Hunt on the ES Playground.

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