Just to clarify - The Penn Alexander School is not run by Penn. It is a Penn partnership school with the Philadelphia Public School District. Penn contributes an additional $1000 per student to keep the teacher student ratio low. They also provide signficant resources in terms of student teachers, teacher development, etc. My son just finished 3rd grade at PAS after being in a private school PK-2nd, feel free to PM me if you have any questions.