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The CEOs of YouTube and 23andMe are sisters; they were raised by Esther Wojcicki, a high school educator in Silicon Valley. In Esther’s new book How to Raise Successful People, she writes what she calls her “Ten Commandments for Tech.”

In the third video of our members-only series in which Wojcicki shares what she’s learned over the course of her career and as a parent to high-powered children, she focused on the importance of collaboration and open discussion, and offers tips on how you can use smartphones to teach young children how to collaborate.