Twisted solids

Materials: Geometro set, paper clips with velcro, drinking straws, scissors

paper clips with velcro

 

Push paper clips into pre-cut drinking straws

paper clips and straws

 

 

Build and twist 3-D solids
Cylinder
Use straws with velcro hooks at both ends
circle with strawscircle with straws1cylinder with strawscylinder twistedcylidner twisted
 
What is the height of the cone formed by twisting a cylinder with height H ? Which triangles to use to calculate the twisted cone's height?
 
Prism

square with strawssquare prism w strawstwisted square prismsquare prism twisted 2square pyramid twisted 3square prism twisted 4

square antiprismtwisted square prismsquare pyramid twisted 3
square prism w strawssquare prism twisted 2square prism twisted 4

 

 

Copyright © 2004 - 2017 Aniceta Skowron, Geometro. All rights reserved. brightsidemedia.com 2011