Encourage friendships with girls

Research at Arizona State University found that by the end of preschool, children start segregating by sex, and this reinforces gender stereotypes. But children who are encouraged to play with friends of the opposite sex learn better problem-solving and communication.

“The more obvious it is that gender is being used to categorize groups or activities, the more likely it is that gender stereotypes and bias are reinforced,” said Richard Fabes, director of the university’s Sanford School, which studies gender and education.

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