A new model for online learning

Students who struggle with math homework may have a devil of a time trying to get help from their parents. They could turn to the Internet, but how would they know which websites are accurate? The Minneapolis start-up Sophia hopes to provide a solution. The company, named after the Greek word for wisdom, has an online platform that allows people to upload educational videos, lectures and slide shows on topics that range from U.S. history to chemistry. More...