United States, San Francisco
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| Name | Age | Fee | Track | Conditions |
|---|---|---|---|---|
| Infant Community – AM Care (8:00 AM–9:00 AM) – 2026–2027 | 2 | 1,900 USD | Infant | Annual; 10 installments: 190 per installment. |
| Infant Community – Half-Day (9:00 AM–12:30 PM) – 2026–2027 | 2 | 29,200 USD | Infant | Annual tuition for year-round program (8/17/26–7/30/27); 10 installments: 2,920 per installment; paid-in-full discount 5% when paid in full at enrollment (applies only if paid-in-full conditions are met); for mid-year start, at least 50% of tuition must remain to qualify for paid-in-full discount; sibling discount 5% applied to eligible sibling tuition. |
| Infant Community – Extended Day (8:00 AM–6:00 PM) – 2026–2027 | 2 | 5,600 USD | Infant | Annual; 10 installments: 560 per installment. |
| Infant Community – Full-Day (9:00 AM–3:30 PM) – 2026–2027 | 2 | 33,000 USD | Infant | Annual tuition for year-round program (8/17/26–7/30/27); 10 installments: 3,300 per installment; paid-in-full discount 5% when paid in full at enrollment; mid-year start rule; sibling discount may apply; enrollment deadline to retain discounts. |
| Children's House – AM Care (8:00 AM–9:00 AM) – 2026–2027 | 3 | 1,700 USD | Children's House | Annual; 10 installments: 170 per installment. |
| Children's House – Full-Day (9:00 AM–3:30 PM) – 2026–2027 | 3 | 29,200 USD | Children's House | Annual tuition for year-round program (8/17/26–7/30/27); 10 installments: 2,920 per installment; paid-in-full discount 5% when paid in full at enrollment; mid-year start rule; sibling discount may apply. |
| Children's House – Half-Day (9:00 AM–1:00 PM; 3-year-olds) – 2026–2027 | 3 | 26,500 USD | Children's House | Annual tuition for year-round program (8/17/26–7/30/27); 10 installments: 2,650 per installment; paid-in-full discount 5% when paid in full at enrollment (subject to paid-in-full conditions); mid-year start requires 50% of tuition remaining for discount eligibility; sibling discount may apply. |
| Children's House – Extended Day (8:00 AM–6:00 PM) – 2026–2027 | 3 | 5,400 USD | Children's House | Annual; 10 installments: 540 per installment. |
| Elementary – Full Day (Grades 1–6; 8:00 AM–3:40 PM) – 2026–2027 | 7 | 29,000 USD | Elementary | Annual tuition for academic year (8/17/26–6/4/27); 10 installments: 2,900 per installment; discounts as for other programs (paid-in-full 5% if conditions met; sibling discount may apply); mid-year start requires at least 50% of tuition remaining to qualify for paid-in-full discount. |
| Elementary – Extended Day (8:00 AM–6:00 PM) – 2026–2027 | 7 | 3,800 USD | Elementary | Annual; 10 installments: 380 per installment; discounts as applicable. |
| Enrollment fee – 2026–2027 | 18 | 1,000 USD | Enrollment | (Annual registration & materials fee) USD 1,000; Non-refundable; due upon enrollment; may be prorated according to start date; covers materials, activities, snacks, cultural celebrations and in-school enrichment activities. |
| Name | Fee | Conditions |
|---|---|---|
| Application Fee | 0 USD | Application/enrollment processing fees are not listed separately in the 2026–2027 materials; enrollment-related costs are captured by the 1,000 enrollment/registration & materials fee above. |
| Name | Fee | Conditions |
|---|---|---|
| Enrollment Fee | 1,000 USD | Non-refundable; due upon enrollment; prorated according to start date; covers materials, snacks, cultural celebrations and in-school enrichment activities. |
| Name | Fee | Conditions |
|---|---|---|
| Discounts | 0 USD | Sibling discount: 5% applied to eligible sibling tuition. Paid-in-full discount: 5% when the school's paid-in-full conditions are met (see billing terms). |
American International Montessori School (AIM) is a bilingual Montessori day school serving toddlers to elementary students on two Berkeley/Oakland–area campuses. Founded in 2009 by Ernest Mahr, AIM offers three Montessori programs: Infant Community (18–36 months), Children's House (3–6 years), and Elementary (1st–6th). Language immersion is embedded across all divisions, with toddler tracks in Japanese and Mandarin, and elementary bilingual options in English/Chinese or English/Japanese. Immersion is 100% in the target language for younger children, with English introduced in the afternoon for older students; elementary classrooms maintain all-day language immersion. Classrooms emphasize authentic Montessori materials and native-speaking teachers. Two campus sites host distinct language tracks, with Montessori-trained staff across every classroom. The campus features bright, natural-light rooms, child-sized furnishings, two large play yards, and abundant outdoor and garden activities. After-school enrichment includes sports, art, and dance—most notably Yosakoi Japanese dance—and annual cultural events like Setsubun, broadening students' world awareness and curiosity.