One of the most shared stories we’ve published in the past fortnight takes a critical look at education technology. Our report considers the case of a middle school in Kansas, whose digital “ed-tech” programme was such a flop that the school went back to old-fashioned pencil and paper. 

We all know that power naps are hard to get right. They might refresh you, but if you sleep too much you’re in trouble. Our Well Informed column explains the science of napping.