Continuous, on-the-fly student assessment at their fingertips? I don't know about the value of these bad boys, but I do think that administrators might say, "Heck, let's substitute this for the the end of year assessment." Or some typical admin nonsense that would not measure what it intended. But what if you used it to measure "student engagement"in some very rough way for personal assessment purposes. Any communication instrument that allows backchannel talk is of interest to me. Think feedback loop and I believe you will see the value here. Of course, a good teacher can create his own channels of communication with existing high and low tech. The comments at the bottom of the post in Engadget are priceless. I especially liked this one, "Do we really need a high tech way to raise your hand?" I think that misses the general point of connection for the specific point of "Is this retarded or what?"
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