</p></div> Are you an incredible explainer whose clear, engaging lessons help students understand concepts that once seemed too complex to grasp? Submit your videos by June 21st You might be in a classroom, inspiring dozens of students each year. You might be at a kitchen table, kindly tutoring your younger siblings. Whoever you are, wherever you are, we want to amplify your voice so that you can reach millions of students around the world.

Spread the word: Facebook Twitter Email Winners will be featured on the Khan Academy website and flown to California to meet, learn from, and work with the Khan Academy and YouTube teams. Learn more Who? We're seeking submissions from anyone and everyone with a passion for learning and a knack for making challenging concepts seem simple. What? Submit two educational videos before June 21st, 2015.

Algebra

Algebra I Worked Examples. Biology KhanAcademy. Bill Gates talks about the Khan Academy at Aspen Ideas Festival 2010. ROUGH CUT: Salman Khan on the Future of the Khan Academy. Salman Khan Interview at the Startup America HD Social Lounge, TiEcon 2011. Brain Teasers. Arithmetic. Calculus. KhanAcademy Pearls. Salman Khan at TiEcon 2011. Salman Khan Talk at the MIT Club of Northern California. Salman Khan on Charlie Rose. Banking and Money.

How Khan Academy Is Changing the Rules of Education. Matthew Carpenter, age 10, has completed 642 inverse trigonometry problems at KhanAcademy.org.Photo: Joe Pugliese “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. Carpenter, who attends Santa Rita Elementary, a public school in Los Altos, California, shouldn’t be doing work anywhere near this advanced. 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. “I’m able to give specific, pinpointed help when needed,” she says. The result is that Thordarson’s students move at their own pace. Smarthistory: a multimedia web-book about art and art history. Smarthistory offers more than 1500 videos and essays on art from around the world and across time.

We are working with more than 200 art historians and some of the world's most important museums to make the best art history resource anywhere. Use the "subject" pulldown menu (go to "Arts and Humanities") at the top of this window or click on the headings below to access our content: Art history basics First things first (you are here) The materials and techniques artists use Art 1010 Prehistoric art in Europe and West Asia Paleolithic art Neolithic art Art of the ancient Mediterranean Ancient Near East Egyptian art and culture Aegean Greek Nabatean Etruscan Roman Judaism in art.

Salman Khan talk at TED 2011 (from ted.com) Forbes Names You Need To Know: Khan Academy. Salman Khan talk at TED 2011 (from ted.com) Khan Academy - Home. TEDxSanJoseCA - Salman Khan - (Sequel to talk at TED)