A Clicker response to teacher's lectures

Colleges and Universities A-Z Case Western Reserve University
1

<p><a href="http://abcnews.go.com/Technology/DyeHard/story?id=727409&page=1%5B/url%5D"&gt;http://abcnews.go.com/Technology/DyeHard/story?id=727409&page=1&lt;/a&gt;&lt;/p>

<p>God, I wish I could have used this with some of the teachers in my school. I used to never sleep in class. Now, it's a regular thing in some classes.</p>