Sophia, which operates a free online social teaching and learning platform, this morning announced that it has acquired Guaranteach, a Web-based service that provides tens of thousands of short-form ...

NEW YORK, NY--(Marketwired - Aug 26, 2013) - Today Pearson (NYSE: PSO) announced the continued, free availability of Virtual Nerd's high quality math tutorials and the development of a new app that ...

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 ...