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Preschools/CA/San Francisco/Wonder Years School
Infant Center

Wonder Years School

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Ages
Infants (0–2 yrs)
Teacher ratio
1:4 (CA min)

380 21st Avenue, San Francisco, CA 94121

Visit website ↗(415) 209-5488Directions ↗Licensed for 30
Own this preschool? Claim your listing →

Licensing & safety record

✓ Clean licensing record

No citations or complaint visits on file with state licensing as of 2025-09-29. Last licensing visit: 5/21/2025 (2 total).

Source: California Dept. of Social Services, Community Care Licensing (updated 2025-09-29). View official inspection reports →

About this preschool

Wonder Years School offers preschool and daycare programs for infants, toddlers, and preschoolers (3 months to 5 years) in San Francisco. The school emphasizes hands-on exploration, meaningful relationships, and an eclectic approach incorporating Reggio Emilia, Montessori, and play-based learning.

Philosophy
Eclectic approach incorporating elements of Reggio Emilia, Montessori, and play-based learning. Emergent curriculum designed based on children's interests, developmental levels, and unique needs. Focus on holistic development, exploration, creativity, and cultivating a love of learning.
Ages served
3 months to 5 years (Infant Program: 3-12 months; Toddler Program: 1-2 years; Preschool Program: 2-5 years)
Hours
Full Time: 8:30 AM - 3:00 PM; Extended Full Time: 8:00 AM - 5:30 PM; Part time and Half time programs available
Outdoor
Massive outdoor playground in the backyard; great outdoor space for kids to use

Programs

  • •Infant Program (3 months - 12 months)
  • •Toddler Program (1 year - 2 years)
  • •Preschool Program (2 years - 5 years)
  • •12 month program
  • •10 month program
  • •Summer Program

Highlights

  • ✓Play-based, STEAM-focused learning
  • ✓Small classes with personalized attention
  • ✓Teacher ratios: Infant 1:3, Toddler 1:4, Preschool 1:8
  • ✓Newly renovated, bright, thoughtfully designed space

Not stated on their website: Tuition, Meals/snacks, Teacher qualifications/credentials, Religious affiliation. Ask the preschool directly.

Summarized by AI from the preschool's own website (Jun 23, 2026). Not written or verified by PreschoolWise — confirm details directly with the program.

Parent reviews

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Helpful guides for parents

What age does preschool start?Typical ages, readiness signs, and state cutoffs.Is my child ready for preschool?The readiness signs to look for.Preschool vs. daycareHow they differ and which fits your child.Preschool vs. pre-KWhat comes when, from ages 3 to 5.

Listing facts from public CA child-care licensing records. Reviews are the opinions of individual contributors, moderated before publishing; they are not endorsements by PreschoolWise. Always visit and verify a program directly before enrolling.