Gever Tulley

He has delivered multiple TED talks on his work, published the book 50 Dangerous Things (You Should Let Your Children Do), and has contributed articles for many online media outlets.

The Tinkering School's program provides children with a week-long overnight experience at a ranch outside of San Francisco, California, United States.

Participants spend the week building large projects such as a working roller coaster, a rope bridge made out of plastic bags, and a 3-story tree house.

The school expands upon the premise of his summer program, and students from grades K-12 learn through hands-on activities facilitated by adult "collaborators".

[4] Tulley's philosophy on allowing children to participate in more dangerous activities has attracted the criticism of some parents and child psychologists.