Build solids from straws and test Euler's formula yourself
What you needDrinking straws or thin sticks, and small balls of clay or dough to join them at the corners.
MethodBuild the skeletons of a cube, a triangular prism, a square pyramid and a triangular pyramid. Each straw is an edge, each ball of clay is a vertex.
Then countCount the straws before you assemble, so you cannot lose track. Count the clay balls at the end.
🔐
That's a peek at activity 1 of 4 - sign in for all of them, full length.