Cornerstone Montessori School is a year-round facility offering Toddler, Preschool, Kindergarten, and Summer Camp programs. We are licensed by the Colorado Department of Human Services to care for 130 children ages 2-1/2 through 6 years during the academic school year (September through May), ages 2-1/2 through 15 during Summer Camp (June through August), and 10 toddlers ages 18 months to 3 years old on a year-round basis.