Does class size matter?
More important than class size is the teacher-to-student ratio. The fewer kids per adult, the more one-on-one attention your child will receive. The National Association for Education of Young Children recommends at least one teacher for every nine students for 2?- to 3-year-olds, and at least one teacher for every ten students for classrooms of 4-year-olds. It's typical for a class to have one head teacher and an assistant (or two).