Anyone who is teaching a programming, Web Multimedia, or Gaming course might want to check out Construct 2 from Scirra. There are three down-loadable versions (one is free). Check out the info video below.
Looks promising. There are multiple tutorials to get started and an arcade to test out games. I also like that you can publish to multiple platforms such as iOS, Android, and others. Give it a try and let me know what you think!