Glenbrook South High School serves more than 2,680 students in grades 9 through 12. It offers instruction in English, math, science, social studies, applied technology and business education. The school also conducts sessions in various foreign languages, such as French, German, Japanese, Russian and Spanish. Glenbrook South High School provides several sports activities, such as basketball, lacrosse and volleyball. The school operates student newspaper and dance clubs. Its extracurricular activities include band and orchestra. The school s Watson Auditorium has a seating capacity of over 1,495 individuals. It operates a library and cafeteria. The school offers special education classes for students with learning difficulties, as well as guidance counseling services. Glenbrook South High School is a part of Glenbrook High School District 225.