On nursing for 3 year olds!!!! My DD's 3 year old preschool class will be learning about health this week and her teacher wants ME to come tell them what a nurse does. So far I have hand washing, healthy eating, exercise, brush teeth, and buckle up. I mean if I was talking to an adult I would be ok, but 3 year olds???? I'm only going to have their attention for say 30 seconds.