Middle School Builds World's Largest Tetrahedron...
Author Shelley Pearsall visited Copley Middle School in Ohio earlier this month. One of her books, All Shook Up, is about a high school that built the world's largest tetrahedron -over 8 feet tall! To prepare for her vi...
https://www.neatorama.com/2012/05/24/middle-school-builds-worlds-largest-tetrahedron/
