This website, Interactive Geometry 3-D Shapes allow user to manipulate 3-D objects. Users can twist the image to see all sides, and see a net version (the kind you can cut out of paper and fold). Users can also use the site to examine surface area, volume, platonic solids and many others. The site has links to other pages that assist in other subject areas
Now that we have a manipulative to use, why did we need it? Some students have trouble visualizing the 3-D object that is represented by a 2-D object. In a traditional class we will sometimes take copies of the image net and have students cut the object our and fold it. This website can be used on a SmartBoard, in a lab or at home for students to explore various platonics and 3-D geometric shapes.
1 comment:
Thanks for the resource. It is pretty cool to look at 3-D shapes in a different way (manipulating them is great for the students). I know that was always a struggle for my students when I taught Geometry. How do I get them to see three-dimensionally with only two dimensions?
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