Founded in 1970, Casa Montessori de Carlsbad operates one of North County's longest-running Montessori programs at 3470 Madison Street in Carlsbad Village under California Community Care License #376600146. Three classrooms — Toddler for ages eighteen months through three, plus Primary I and Primary II for ages three through kindergarten — maintain a 5:1 student-teacher ratio, and enrolled families often pair the school's literacy focus with the children's reading programs at Georgina Cole Library on Carlsbad Village Drive. The campus sits a short distance west of Interstate 5, accessible from both the Tamarack Avenue and Carlsbad Village Drive exits, serving 52 students across half-day, full-day, two-day, three-day, and five-day enrollment tracks. Enrichment programming includes Spanish language instruction, music, and off-campus field trips that extend classroom themes into real-world settings. Families exploring tactile STEM exhibits for supplemental enrichment visit Craftsmanship Museum on Faraday Avenue in the Bressi Ranch corridor, where miniature-engine displays and precision-machining demonstrations align with Montessori sensorial education. The kindergarten track uses Montessori stamp-game arithmetic, grammar-symbol sentence analysis, and pin-map geography materials to transition five-year-olds into Carlsbad Unified first-grade curriculum standards.