Three notes: 1. These tweets aren't teaching; they are a teacher asserting her authority. Looks like teaching, but it isn't. 2. They aren't very good tweets. There's nothing memorable in them, nor concision, just reduction to the simplistic. 3. They sanction a misunderstanding of writing, and of teaching and learning. In a tweet, they fail to enact what they assert. And a comment: What do you do the second day of class? 

Covering organization, access, frequency, substance, archiving, and assessment

University of Reading. "In an environment where there are many ways to publish material quickly and easily, such as social networking sites ... and all manner of other ways of expressing yourself on the web, people can find that they have their 'web presence' spread across multiple sites. What's more, other people might post something about you without you knowing about it - and it might be done quite innocently.

We are developing a number of short exercises and learning materials to help people think about what sorts of issues there are about DI."

Educase PDF. Overview.

Really just a technique or two > A better model for twitter integration was suggested which I quite like. This would involve defined periods when students were encouraged to ‘tweet’. For example, 20 minutes in you say to the students “for the next 3 minutes discuss with your neighbour the issues raised so far (or have a specific question you want them to answer). Please feel free to ‘tweet’ your thoughts or questions using the tag #xxxx”. The lecturer could then choose to take a couple of minutes to respond there and then or follow up after the class.

List of faculty at Marquette who are using twitter for classes and why. The usual reasons and uses. One warning to limit personal exchanges.

The significance in these uses is tying twitter to sending to and from the cell phone,

Using Twitter to create community in the classroom