For Zach, a class field trip to the museum is about more than cool exhibits--it's about learning from mistakes and dealing with feeling embarrassed. First he forgets to wear his field trip shirt, then he forgets the rule about not touching displays. His teacher helps him see that everyone makes mistakes--and how to use them to grow and develop a growth mindset. Using an easy-to-remember tool, the Key to Mistakes, she shows Zach and readers a simple...