the far more interesting element of the feedback is qualitative. This is where tremendous progress remains to be made—a very exciting prospect for the very near future. Aside from counting concepts and measuring time, what can we infer from a student’s efforts at Khan Academy or some other version of computer-based education? What can we learn about his or her work ethic, persistence, resilience—elements of character that are at least as important as sheer intelligence as predictors of success?
