Making 2D and 3D Shapes

Making 2D and 3D Shapes

Are you looking for easy ideas for making 2D and 3D Shapes? You can make your own 2D and 3D Shape making center by using simple items that you can get at any craft store. These are craft sticks, straws, pipe cleaners, and Velcro dots.

Making 2D and 3D Shapes to Construct Definitions

There are so many rules in geometry that we can take for granted. For instance, I asked my studsents to define a triangle for me (after they joined three straws together). They said ‘a plane shape with 3 straight sides’. So using that definition, I gave them a non-example:

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An open plane shape with three straight sides. Is it a triangle? No. So this means that the three angles must be important to mention. In fact they were important enough to give the triangle its name.

We explored every plane shape we could make. And it challenged the students to pay attention to detail when generating their own definitions. It was a fun experience. Of course, you can try it with your class but you do not have to stick to straws only.

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Make your own 2D Shapes

Constructing 2D shapes in math

Pipe cleaners and straws are all you need to make triangles, quadrilaterals and polygons. We did this back when I had my fifth grade class.

Making 3D Shapes with Straws and Pipe Cleaners

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Craft shops sell the sticks that you use to make mini flags, not the dowel sticks but hollow plastic ones. There are also the sticks to which we attach balloons. They are more durable than straws, just use a pair of shears or a knife to cut it into shorter lengths and use even shorter lengths of pipe cleaners (chenille stems) to make the corners. By the way, they also interlock so that you can make cubes, cuboids, pyramids and prisms with them too.

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You can also use craft sticks and add Velcro dots to the ends to make polygons.

Finding Items that Look Like 3D shapes

3D shapes in the classroom wide

Use items that are in your classroom that look like 3D shapes. Stationery items like erasers and sharpeners can be maused as 3D shape manipulatives. See more examples of thtem in this blog post.

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This Post Has One Comment

  1. Anonymous

    Thank you, Thank you, Thank you!!!! This is EXACTLY what I was looking for for my 2nd graders. I have made some in the past but was looking for some pictures and background. WOO HOO!!!!!

    Karen J. Simes
    Special Education Teacher
    Las Cruces, NM 88011

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