Polygon Fun

This week the second graders were given a bag with various shapes it.  They were told to examine the shapes and sort them into at least 2 groups.  The kids were in charge of determining the categories after evaluating the various shapes.  There were many debates on the “right” way to sort the cards and many kids asking me to referee.  They are used to parameters…sort by biggest and smallest, curved lines and straight, etc.  It took compromise, patience, and risk-taking for the kids to create their own groups.  They did a fantastic job.  Below you will see pictures of the kids categories.  Once the tables were done we took a gallery walk to appreciate the many perspectives.  We came back together and discussed patterns we noticed: sides, vertices, open, closed, etc.  I then introduced them to the term POLYGONS.  We watched a Brainpop video on polygons.  The students brainstormed the rules for Polygons based on the video.  They then reorganized their shape cards into two categories: Polygons and NOT Polygons.  Next week the children will use polygons to create an art piece.  They will also use Depth and Complexity to reflect on the details and rules of polygons.

 Getting to Know Polygons on PhotoPeach

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