Early-childhood experts often like to say that a child's environment is one of their most important teachers. But what can our built environments learn from children? This Raising Curious Learners episode, Ann and Elizabeth welcome a special guest who makes a strong case for listening to our most creative citizens. Mara Mintzer is a mom, author, speaker, and the co-founder and director of Growing Up Boulder, which taps into play as a strategy and lifts the voices of young people in the city planning process.