Common Core standard
Activities for HSG.GMD.B.4
Real-world activities aligned to this standard.
A geodesic icosahedron, the Times Square New Year's eve ball
Image by kjpargeter on Freepik It's a gorgeous ball, covered with Waterford Crystal triangles, shaped as a geodesic icosahedron. Every New Year's Eve it descends in Times Square...
Geometry
Math and Science
How much have doughnuts changed?
Part of the Smithsonian's Sally L. Steinberg Collection of Doughnut Ephemera -- Click on the image to see it larger. When you are working on volume in your...
Algebra
Number Sense
Grades 8–HS