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University of Cambridge
University of Cambridge: Nrich: Skeleton Shapes
At this one page website a variety of polyhedra are shown. The challenge is to create the skeleton for each polyhedron and identify the needed materials. You can check your solution right at the website.
University of Cambridge
University of Cambridge: Nrich: Building With Solid Shapes
Predict which solid shape constructions would be unstable as shown at this one page website. Solutions are available right at the website.