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> "for every 50 minutes in the computer lab, the average teacher spends 15 minutes just getting students logged in"

Fascinating and uncomfortable if true - but not surprising. How did you estimate these numbers?

The numbers come from an MDR (http://www.schooldata.com/) survey of teachers.

I'd have a hard time believing them, if it weren't for my classroom experience (8th grade science). Every time I brought my students to the computer lab, I stopped being a teacher and turned into IT support. Forgotten/lost passwords were the biggest cause of pain.

I don't really get how it works. The page doesn't explain any technology behind it. I may need more information.