Think Thru Math 
Hour of Code-Click on the link below to find out more
http://hourofcode.com/us
Sign in for Beyond the Hour of Code here: Need parent permission to sign in for competition! This allows students to keep track of 27 lessons and earn "trophies".
http://learn.code.org/join - teacher code is Willis
Choose one of the tiles in the Symbaloo below and get started!