Here is a cute song on youtube about main idea. I just brought my laptop over to my large group area and played this song after teaching about main idea. I loved the other member's idea about main idea bags, I am totally going to do that this week!
http://www.youtube.com/watch?v=W24Ry...rom=PL&index=3
The person who made this song also made others about author's purpose and context clues. My students love them!