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Going back to our discussions on augmented reality, here's an app that takes us a step closer to the kind of future that was shown in a video in one of Professor Dede's presentations - instant translation!

I wonder if this type of technology might be augmented to "replace" physical QR codes and instead, if you hold up your phone to a building name plaque (e.g.Empire State Building) - could you get statistical/historical data associated with just the name text?

Math activities based on google maps.This looks like so much fun!

Very creative way to get youngsters engaged in math. As the author says, 'math is everywhere'.

Got something you want to find on the Guardian website? Tweet your question at our new @GuardianTagBot service to get an answer with the help of the Guardian's Open Platform The Guardian is experimenting with a new Twitter-based service, and would like your help to test it out.

Now this service/interface seems to offer real potential -- it's flexible, it's based on a dynamic interplay of different applications -- it's been around for a few years now -- anybody have first-hand experience with it?

Being a 2nd year part-time student, I already took David Rose's UDL course last spring. My group project for UDL was exploring VoiceThread-- understanding its current feautres and capabilities, testing it out in a real world situation with some students, and envisioning changes to fix shortcomings plus new features. Overall, we thought VoiceThread was really cool! Could allow students to communicate in different kinds of ways (text, voice, submitting video statements, drawing-- whatever someone preferred or was comfortable with) and enabled a growing transcript of student dialogue in reference to a piece of content. But there was a real learning curve- in figuring out how (as a 'teacher') to create an original VoiceThread using our media. And then students had to figure out the interface and tools available to them as they used VoiceThread to browse a stream we created and comment on it. As of last spring at least, I felt it was a bit cumbersome. Really wish it was more intuitive so both creators and viewers could jump right in and get right to communicating. Haven't gone back to using it as of late, but I hear they now have iPhone/iPad access!