See All Free Gizmos
Extend Your Gizmo Pass
Without an account, Gizmos can be viewed for just 5 minutes each per day.
To teach with Gizmos:
Apply constraints to two triangles. Then drag the vertices of the triangles around and determine which constraints guarantee congruence.
A visitor has shared a Gizmo from ExploreLearning.com with you!
HOW IT WORKS
You get 20-40 Free Gizmos to teach with
See the full list
Access lesson materials for Free Gizmos
Teacher guides, lesson plans, and more
All other Gizmos are limited to a 5 Minute Preview
Get a 5 Minute Preview of all other Gizmos
They can only be used for 5 minutes a day