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Pyramids and Triangles
Source Institutions
Straws and pipe cleaners are terrific materials for building models of pyramids and cubes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-473.jpg?itok=Hf5AGCaa)
Crazy Shapes
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In this activity, learners cut a shape into two equal sized pieces and use their knowledge of geometry and space to prove that the two parts are equal.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-275.png?itok=K2j1NYKO)
Straws and Airplanes
Source Institutions
Create airplanes from straws and geometric shapes. Test them out to see how far they can fly, or how accurately they can be aimed.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-496.gif?itok=xx__qnd_)
Clay Beams and Columns
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In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-274.png?itok=7Oxi6HSt)
Strong Shapes
Source Institutions
Is a square stronger than a triangle? Use tongue depressors to build simple shapes. Then apply a little weight to them and see what happens!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-000.png?itok=8gwoyc53)
Castles Inside and Out
Source Institutions
In this three-day lesson, learners identify two-dimensional shapes used in castle construction, create a castle collage using assorted shapes, and design tapestries using repeated patterns of color, s