HippoCampus

HippoCampus is a great tool to use in and out of the math classroom.  Anyone can create a free account and begin to find material from Khan Academy and NROC.  You can mix your own "playlists" using content across different websites.  You can track media that is trending this week for your subject areas.

The goal of HippoCampus is to provide high-quality, multimedia content on general education subjects to high school and college students free of charge.  It is an open education resource to provide quality education to everyone.  You can find the link to HippoCampus here: http://www.hippocampus.org/

They have a great variety of different tools, videos, games, and activities the students can do in and out of the classroom.  A great activity I found uses factoring and tells you if you chose the correct factorization of a particular polynomial, found here: http://www.hippocampus.org/Algebra%20&%20Geometry?loadLeftClass=CourseCombination&loadLeftId=12&loadTopicId=7762