Cornerstone Montessori is located in Spokane Valley, WA. It is a private, montessori school that serves 7 students in grades PK,K. Cornerstone Montessori is coed (school has male and female students) and is nonsectarian in orientation. The school belongs to the Other Montessori association(s).
In 2010, Cornerstone Montessori had 2 students for every full-time equivalent teacher. The Washington average is 19 students per full-time equivalent teacher.