Toondoo Comic creator

http://www.toondoo.com/

I have used this site for several years now.  It is extremely easy to use and students love it.  I have used it with students in the past to create comic strips demonstrating figurative language.  Use your imagination and have the students create!

Math Pickle

Math pickle contains games, puzzles, videos and competitions for the classroom.

http://www.mathpickle.com/K-12/Videos.html