PP here.
Also wanted to mention that Del Ray Montessori, Full Circle Montessori, and MSNV all also have toddler programs (“pre-primary” or “young children’s community) that start as young as 15-18 months, if you’re interested in enrolling your kid in school earlier. I know the latter two still had some spots open for toddlers this fall as of a couple of months ago, though I’m not sure what their status is now. Full Circle also has rolling admissions/enrollment for some of its programs.