From Hour of Code http://csedweek.org/learn2
In order from easiest to hardest
Scratch http://scratch.mit.edu/
Ms. Lee's sample Biology Review http://scratch.mit.edu/projects/13656177/
Code Academy
Cards to reference for coding
Source: scratch.mit.edu
Have students write review statements in binary and see if another student can decode it.
Label your cups with review terms and make the program connect the terms.