Esther Wojcicki has three daughters; one heads YouTube, one founded 23andMe, and one teaches pediatrics at UCSF. She herself runs an award-winning media arts program and recently wrote a book on How to Raise Successful People. In the fourth video of our members-only series offering tips from the longtime educator, Wojcicki discusses how parents and teachers shouldn’t focus on when a child fails, but instead set standards, and encourage them to iterate until they learn how to do something, in what she calls the “mastery system.”