NYC Teacher's Memoir Unlocks Door to Kids' Hearts

Today's guest, Melinda Ehrlich, taught public school in New York City for 33 years and lived to write about it in her new book, Take Off Your Hat and Spit Out Your Gum. Having kept notes throughout her journey, she takes us behind-the-scenes and into the classroom, for a look at the poignant memories she's gathered. Have kids changed during all these years, or is it the world around them?