Tuesday, March 5, 2013

Geometry Center Activities - 2D and 3D Shapes!

My kiddos and I started our geometry unit recently. Geometry is my FAVORITE unit to teach in math! The kids love it and there are a lot of really fabulous and  F - U - N hands on activities to do! 

We had an absolute blast today! I run my math block in a workshop format, where students rotate through 4 centers after a mini lesson. I promise I will do a future blog post all about math workshop centers, because wow! wow! wow! My math block is a teachers dream! I'm talking ZERO behavior problems ever most days. But that's a post for another day! 

Today, our focus was on 2D and 3D shapes and the relationship between them. 



Here are the activities we did: 

Marshmallow Shapes: I bought a bag of marshmallows and some toothpicks. The kids started by making 2D shapes (like the squares pictured below) This helped them to grasp what corners and sides were in a shape because they could easily differentiate between the corners (marshmallows) and the sides (toothpicks). 

Once the 2D shapes were built, we turned them into 3D shapes! This really helped them relate the two. It also helped with counting vertices and edges - something they struggled to understand yesterday! They were easily able to see that the marshmallows represented the vertices (corners) and the toothpicks represented the edges! 

 The best part for the kids was eating the marshmallows after!


Geoboard Task Cards: The kids has a great time with this center also. They even asked if it could be added to our Friday game shelf! Who could say no to a kid who wants to practice a math game?!

There are 18 task cards in this game. Students have to create different shapes by name, by the amount of sides, or by the amount of corners.

Make 2 different sized rectangles.
Make your own shape. How many sides and corners does it have?
Make your own shape with more than 4 sides.



I had dreams last night (I'm not even kidding) that my kiddos got a little rambunctious and were flinging elastics at each other during this center. To my delight, they were very mature and able to play with the geoboards and elastics without any issues - love when that happens! 

Interested in the geoboard task cards or other 2D and 3D shape activities? They are included in my 2D 3D Shapes Bundle on TpT! Check it out here: 2D 3D Shapes Bundle - 6 Activities

Activities Included:
-2D Shape Creature                      -Geoboard Task Cards (2D)
-Shape Detective (2D and 3D)                  -Sorting 3D Shapes
-Vocabulary (3D)                                  -Hunt for Shapes (3D)

1 comment:

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