Each student in grades 9, 10 and 11 must enroll in a minimum of six courses each semester. Students in grade 12 must enroll in a minimum of five courses each semester. In addition, all students must enroll in physical education each semester. A student’s grade placement is determined by the number of units earned and by the highest grade level of English or Social Studies in which the student is enrolled. Assignment to 10th grade requires a student to have earned 5 credits, exclusive of physical education, including one unit in English 9 or Social Studies 9. Assignment to 11th grade requires 9 units of credit, exclusive of physical education, and successful completion of either English 10 or Social Studies 10. Exception: all candidates for graduation in that academic year will be assigned to 12th grade.