[caption id="attachment_36288" align="alignleft" width="150" caption="Students' text-message questions are screened before they're posted for peers to read. "]Students' text message questions are screened before they're posted for peers to read. [/caption]

Georgia State University students who don’t want to yell their questions from the back of a cavernous lecture hall now have another option: They can send text messages to their professor, who reads the queries from an overhead screen.

David McDonald, director of emerging technologies and an associate professor in the Atlanta-based university’s business school, is inviting the use of...

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