What Do Toddlers Do? Rosa lies down on the changing table. Her mom washes her hands and tells Rosa what she’s doing. “I’m washing away all the germs so you will stay healthy. I’m taking off your shorts. They’re red, like your sneakers.” Rosa says, “Red sneakers.” Mom takes a diaper from the shelf. She replaces Rosa’s wet diaper with a dry one. “All done,” says Mom. “Wash hands?” asks Rosa. “Yes,” says Mom. “Let’s wash our hands.” Rosa heads for the sink, singing. “This way, wash hands, wash hands, wash hands.” Mom sings along, then says, “Rosa, you learned a new song to sing.” “Sing song,” says Rosa. Like many toddlers, Rosa is learning about language: