A new study shows that quality kindergarten really pays off for students. Harvard economists found that kids with better kindergarten teachers earned more when they were in their twenties than those with worse teachers. But many education experts say that there is a crisis in today’s kindergarten classes — testing and drilling has replaced imaginative play. At what cost? We’ll talk to Harvard economist RAJ CHETTY about his study “How Does Your Kindergarten Classroom Affect your Earnings” and to Temple University psychologist KATHY HIRSH-PASEK about what’s missing from kindergarten today.