Marli Hoffman is co-owner of Little Ashford, a Johannesburg preschool renowned for its pioneering use of tablet technology in the classroom. With branches in the northern suburbs and plans to move into the continent, Little Ashford has already begun the process of scaling their idea worth spreading.

Twitter: @MarliHoffman, Web: littleashford.com

In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)