Students skimmed their books to find words beginning with re-. They determined if each (re) was part of the word or used as a prefix. Then, they created vortex lessons in SMART Notebook for other students to do. I've attached one for you to download if you have the software. Remember, the one doing the most work is doing the most learning. Make sure the students are doing more work than you. :-)
Example: Reteach: Teach again. Re- is a prefix.
Example: Reach: Ach again?? I don't think so. It's part of the word.