Apartment Reviews at The Commons at Penn Avenue. By clicking submit, I agree to the Apartments.com Terms of Service and the Ratings & Reviews Terms of Use. There are no reviews for this property. Be the first to add a review on this property.
The early child period is considered to be the most important developmental phase throughout the lifespan.
Developmental milestones act as checkpoints in a child's development to determine what the average child is able to do at a particular age. The main categories of developmental milestones include the physical, mental, social, and communication skills learned at each stage in the child's growth.