At ProjectGENIUS, one of the most challenging aspects of our work is that every school has a different hardware and connectivity profile. Moreover every teacher has a different profile in terms of his or her personal devices...
Avoid the habit of assuming, just because you “covered” something, that that is enough. Whatever else student-centered-ness might mean, at the very least, we should all be able to agree that it means seeking tangible proof of what the kids are getting out of what you are doing.