Arlington Unitarian Cooperative Preschool is a non-sectarian, parent-owned and operated, cooperative preschool for children aged six weeks to pre-kindergarten. When you enroll your child in AUCP, you are embarking on an adventure together. As a true cooperative, we require parents to work alongside professional teachers on a rotating basis. When it is your turn to “co-op” in the classroom, you get to see first-hand what your child is learning, with whom your child is playing, and how a trained educator handles such challenges as temper tantrums and potty training. Classes are offered for ages 4 months to 4 years.