This school banned phones. Remarkable things happened.

The cafeteria at Ballard High School during lunch is a loud place. Students are talking and laughing, playing card games and going out to the courtyard for an informal recess. On Fridays, students have started playing bingo.

It’s a big change from the past couple of years — and it’s not the only one. In the first month of school this year, students took out 67 percent more books from the school library than the same month last year.

Today on the show, we interview psychologist Jean Twenge, author of the new book “10 Rules for Raising Kids in a High-Tech World.”

Listen to our episode about the young people giving up their smartphones.

Today’s show was produced by Maggie Penman and Rennie Svirnovskiy, who also mixed the show. It was edited by Allison Klein.

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