What makes a family?The members of Ms. Marston's kindergarten class are cleaning and decorating their room for the upcoming Open School Night. Molly and Tommy work on drawing pictures to put on the walls. Molly draws her family: Mommy, Mama Lu, and her puppy, Sam. But when Tommy looks at her picture, he tells her it's not of a family. You can't have a mommy and a mama, he says. Molly doesn't know what to think; no one else in her class has two mothers...