I remember as a kid, I’d get these paper models to cut out and paste together to make 3D geometric shapes like cubes, pyramids, dodecahedrons and such. Here’s a site that students can use to select a model of interest, print it and build their own! There are also number lines, number grids, graph paper, tessellations and several other models available. Results can be downloaded as a jpg or as a pdf file.
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The URL: http://illuminations.nctm.org/ActivityDetail.aspx?ID=205