Rte. grade A. It has 1,108 students in grades 9-12 with a student-teacher ratio of 14 to 1. Notes. U.S. News calculated a College Readiness Index based on AP/IB exam participation rates and percentages of students passing at least one AP/IB exam. The man was able to walk into the building past the cafeteria where students were eating lunch. Masconomet Regional High School. Welcome to our site. {"navigation\/item":"