KQED News Mind/Shift – Alice Baggett 
To be effective tinkerers, students need to achieve a state of mind in which they are primed to play and make joyful discoveries. Young kids who are playing don’t worry about making mistakes. They’re just playing, and the idea that they could make a mistake—that there’s a wrong way to play—doesn’t enter into their consciousness. It’s this freedom that enables the creation of elaborate pretend games and castles built from playground bits. Replicating a sense of play in the classroom is vital to creating a tinkering mindset for children.(more)