Resources
GeoGebra
Khan Academy
Wolfram Alpha
Mathaides.com
Book of Proofs (3rd Edition)
http://kaffee.50webs.com/Science/activities/Activity-Sqr.Cubic.Units.html
http://www.didax.com/apps/unifix/
https://apps.mathlearningcenter.org/geoboard/
https://toytheater.com/pattern-blocks/