Every Upper School student is assigned an advisor at the beginning of his or her freshman and junior year, and stays with that advisor for two years. The student-to-advisor ratio in the Upper School is 6 to 1. Advisors meet twice a week with their groups. Students in the ninth and tenth grades meet in single-gender advisory groups, while students in grades 11 and 12 meet in coed groups. Advisors also serve as a vital resource for parents. Each year, at the midpoint in February, parents have a comprehensive one-on-one meeting with their child’s advisor. The advisor system is yet another way Rivers ensures that each student forms meaningful and longlasting connections with the adults on campus.