Slashdot tackles the important question of effective use of technology in classrooms. I was surprised at the responses. Slashdot is a technical forum exploring advanced uses of technology. While education is not generally their focus, the participants are technically competent. The tools listed for frequent or preferred use for teaching math and physics are quite basic - i.e. Powerpoint...and hands on traditional experimentation. One individual states: "Asking "how can I use technology" is always the wrong question. Your goal is not to use technology, its to teach. The correct question is "How can I increase the amount my students learn?" or perhaps "How can I increase the number of students who learn?". When you look at solutions to this technology *may* be part of it, but it probably won't be."
The slashdot forum is not going to yield rich research results, but the message is clear: technology is not necessarily beneficial to teaching. Start with teaching and learning first. Then consider technology as a possible add on.