Grades: K-9 Hidden Springs Charter School is part of the Boise Independent School District. The student/teacher ratio is 20:1, and the school offers the basics (language arts, science, math, and social studies) plus Spanish and physical education. The Harbor Method is used at the school. The method emphasizes a safe, non-threatening environment coupled with challenging academic goals. Extracurricular activities include bowling, Chess Club, 4-H, Odyssey of the Mind, ski/snowboard nights, and Sport Stacking Club.