Montessori American School on Chula Vista's Bonita Road has held American Montessori Society accreditation since its 1988 founding, operating under California Community Care License #376701286 with a 96-child enrollment capacity. The bilingual English-Spanish curriculum runs across mixed-age classrooms where two- through six-year-olds interact using Montessori-method manipulatives for practical life, sensorial, math, and language instruction — a literacy-forward approach reinforced by nearby resources at the San Diego County Library – Bonita-Sunnyside Branch. Enrichment rotations include yoga, art history, and music sessions taught alongside the core Montessori sequence, and all lead and assistant teachers hold AMS credentials. The school operates as part of the Endeavor Schools network, which maintains standardized safety and curriculum protocols across its national portfolio. Graduates of the kindergarten program feed into area schools including Bonita Vista Middle School through the Sweetwater Union High School District pipeline. The highest-tier instructional offering pairs individualized Montessori work plans with hands-on didactic materials covering decimal-system bead chains, geometric solids, and binomial cubes for advanced pre-K learners.