If you`ve been following the blog for a while, you know I love to share ideas about education that make us think differently. Here`s a looooonnnnggg article from Wired magazine about the Khan Academy that I stumbled across the other day. I won`t post the whole thing here, but I will encourage you to click through to the article and read the whole thing.
Enjoy!
Rhonda
How Khan Academy Is Changing the Rules of Education
By Clive Thompson
“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) = ?
Carpenter, a serious-faced 10-year-old wearing a gray T-shirt and an
impressive black digital watch, pauses for a second, fidgets, then clicks on “0
degrees.” 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. “It took a while for me to get it,” he admits
sheepishly.
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. As his teacher, Kami
Thordarson, explains, students don’t normally tackle inverse trig until high
school, and sometimes not even then.
But last November, Thordarson began using Khan Academy in her class. Khan
Academy is an educational website that, as its tagline puts it, aims to let
anyone “learn almost anything—for free.” Students, or anyone interested enough
to surf by, can watch some 2,400 videos in which the site’s founder, Salman
Khan, chattily discusses principles of math, science, and economics (with a
smattering of social science topics thrown in). The videos are decidedly lo-fi,
even crude: Generally seven to 14 minutes long, they consist of a voice-over by
Khan describing a mathematical concept or explaining how to solve a problem
while his hand-scribbled formulas and diagrams appear onscreen. Like the Wizard
of Oz, Khan never steps from behind the curtain to appear in a video himself;
it’s just Khan’s voice and some scrawly equations. In addition to these videos,
the website offers software that generates practice problems and rewards good
performance with videogame-like badges—for answering a “streak” of questions
correctly, say, or mastering a series of algebra levels. (Carpenter has acquired
52 Earth badges in math, which require hours of toil to attain and at which his
classmates gaze with envy and awe.)
Initially, Thordarson thought Khan Academy would merely be a helpful
supplement to her normal instruction. But it quickly become far more than that.
She’s now on her way to “flipping” the way her class works. This involves
replacing some of her lectures with Khan’s videos, which students can watch at
home. Then, in class, they focus on working problem sets. The idea is to invert
the normal rhythms of school, so that lectures are viewed on the kids’ own time
and homework is done at school. It sounds weird, Thordarson admits, but this
flipping makes sense when you think about it. It’s when they’re doing homework
that students are really grappling with a subject and are most likely to need
someone to talk to. And now Thordarson can tell just when this grappling occurs:
Khan Academy provides teachers with a dashboard application that lets her see
the instant a student gets stuck.
“I’m able to give specific, pinpointed help when needed,” she says.
The result is that Thordarson’s students move at their own pace. Those who
are struggling get surgically targeted guidance, while advanced kids like
Carpenter rocket far ahead; once they’re answering questions without making
mistakes, Khan’s site automatically recommends new topics to move on to. Over
half the class is now tackling subjects like algebra and geometric formulas. And
even the less precocious kids are improving: Only 3 percent of her students were
classified as average or lower in end-of-year tests, down from 13 percent at
midyear.
Read the rest of the article here.