What Are the Big Problems in Ed-Tech?

By Stephen Downes - Stephen's Web. What Are the Big Problems in Ed-Tech?
I echo Tim Lauer's reaction to Tom Hoffman's statement: "We've got a situation akin to letting the clerks in the purchasing department decide whether or not the books ordered by teachers and librarians are acceptable." This also strikes me as worth citing: "Utter chaos around privacy, safety and liability. The 'practical' advice being promoted seems out of sync with empirical evidence... the problems are driven by anxious parents, who aren't exactly rational actors." Hoffman is right. More...