Please forward this error screen to 67. Because the Hours of Service rule doesn’t work. I peer over his shoulder at his laptop screen to see the math problem the fifth grader is pondering. Presto: The computer tells him that he’s correct.
The software then generates another problem, followed by another, and yet another, until he’s nailed 10 in a row in just a few minutes. All told, he’s done an insane 642 inverse trig problems. Carpenter, who attends Santa Rita Elementary, a public school in Los Altos, California, shouldn’t be doing work anywhere near this advanced. In fact, when I visited his class this spring—in a sun-drenched room festooned with a papercraft X-wing fighter and student paintings of trees—the kids were supposed to be learning basic fractions, decimals, and percentages. But last November, Thordarson began using Khan Academy in her class. Initially, Thordarson thought Khan Academy would merely be a helpful supplement to her normal instruction. But it quickly become far more than that.