Učitelé: "Můžete to upravit, aby toho žáci neuměli tolik?"

“This,” says Matthew Carpenter, “is my favorite exercise.” I peer over his shoulder at his laptop screen to see the math problem the fifth grader is pondering. It’s an inverse trigonometric function: cos^-1(1) = ?

Even if Khan is truly liberating students to advance at their own pace, it’s not clear that the schools will be able to cope. The very concept of grade levels implies groups of students moving along together at an even pace. So what happens when, using Khan Academy, you wind up with a kid in fifth grade who has mastered high school trigonometry and physics—but is still functioning like a regular 10-year-old when it comes to writing, history, and social studies? Khan’s programmer, Ben Kamens, has heard from teachers who’ve seen Khan Academy presentations and loved the idea but wondered whether they could modify it “to stop students from becoming this advanced.”

Khan realized that remediation—going over and over something that you really ought to already know—is less embarrassing when you can do it privately, with no one watching. Nadia learned faster when she had control over the pace of the lecture. “The worst time to learn something,” he says, “is when someone is standing over your shoulder going, ‘Do you get it?’”

Khan suspects there is a hidden power in the fact that he never appears onscreen in his videos. The only visual is his handwriting, slowly filling the screen. “That way, it doesn’t seem like I’m up on a stage lecturing down at you,” he says. “It’s intimate, like we’re both sitting at a table and we’re working through something together, writing on a piece of paper.”

“We’d go collect some data and make a chart, and the teachers were blown away—every time,” Kamens says. “This isn’t taxing the edge of technology. But they were completely shocked, as if this had never existed before.”

Cadwell has already gotten so used to these metrics that she feels unmoored in her other classes, where they’re not yet using the system. “In those, I get to a quiz or a test and I’m blindsided when they don’t know something—or when they ace something.”

One girl I met in the classroom had advanced an astonishing 366 percent. “I hated math,” the girl tells me cheerfully. “But now it’s actually fun.”

Another limitation of Khan’s site is that the drilling software can handle only subjects where the answers are unambiguously right or wrong, like math or chemistry. And Khan has relatively few videos on messier, gray-area subjects like history.

And Khan and Gates both admit there’s no easy way to automate the teaching of writing—even though that subject is just as critical as math

The students were watching a video with their headsets on. Each was viewing it in a slightly different way, pausing and rewinding the parts that confused them and writing down notes—which is precisely what customized learning ought to look like. But Cadwell realized that, as she sat there watching, she—the teacher—appeared to be slacking. “It was just very weird when the kids had their headphones on, all watching the same video and listening to the same information, but I wasn’t in control of it!” she says.

kez bych takove veci mel k dispozici kdyz sem chodil do skoly ja :)

Neříkám, že to nefunguje, říkám, že to nefunguje, když to nedělají pedagogové.

Většinou to ale dostane za úkol nějakej ajťák a podle toho to taky vypadá