Founded in 1973, P.S. 308 and M.S. 308 together represent the PK-8 elementary and middles schools of Clara Cardwell School. The school's principal is Renata Clement. It is classified as a magnet school with a focus on science and technology. However, it is a part of the New York City Department of Education public schools and does not have a screening process for its students.
The school is a part of the Children First Network. Student enrollment is 776, with a student-to-teacher ratio of 39-to-1. Clara Cardwell offers band and chorus as a part of its extracurricular activities.