Khan Academy is expanding its highest-level math content through a new partnership with a prestigious New England boarding school. The plans, announced this week, involve Khan—a popular producer of ...

In 2009, Sal Khan walked away from a high-paying job to start a business that had no way of making money. His idea to launch a non-profit teaching platform was ignited five years earlier, when he was ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Khan Academy's math lessons ...