Tom Barrett (@tombarrett) has put together an excellent presentation called "Eight Ways to Use Twitter in the Classroom." Here's a summary of the things he listed, but be sure to check the slides out for more detail.
- Gather Real World Data
- GeoTag the Buzzwords
- Summarize topics or POV as Tweets
- Create a "TweetStory"
- Collate Classroom Views
- Inform parents
- Find out where people are
- Use it as a digital storytelling tool