A group of recent studies on technology in education, across a wide range of real-world settings, have come up far short of a ringing endorsement. The studies include research on K-12 schools and higher ed, both blended learning and online, and show results ranging from mixed to negative. A deeper look into these reports gives a sense that, even as computers become ubiquitous in classrooms, there's a lot we still don't know — or at least that we're not doing to make them effective tools for learning.