Als usual a good piece by Larry Cuban:
“After three decades of rhetoric and research, teachers, principals, students, and vendors have their favorite tales to prove that these reasons have been achieved. But for those who want more than Gee Whiz stories, who seek a reliable body of evidence that shows students learning more, faster, and better, that shows teaching and learning to have been transformed, that using these devices have prepared the current generations for actual jobs—well, that body of evidence is missing for each of these traditional reasons to buy computers.”