SchoolVerified

    Cornerstone Montessori Prep School

    Casa
    0.0(0)

    177 Beverley St, Toronto, Ontario ON M5T 1Y7

    Tuition Read directly from this school's own published rate card as of 2026-08-11 — not confirmed by the school. The school can claim this listing and correct it anytime.Source: From the school's published rate card (unconfirmed)

    $18,200–$21,840 CAD/yr

    Stages Montessori groups children into multi-year stages by developmental period, not single grades.Source: From the school's published rate card (unconfirmed)

    Casa

    About

    Cornerstone Montessori Prep School is a Montessori school located in Toronto, Ontario.

    Tuition & Programs

    Read directly from this school's own published rate card as of 2026-08-11 — not confirmed by the school.

    • Casa$21,840–$21,840 CAD/year
    • Junior and Senior School (Grades 1-12)$18,200–$18,200 CAD/year

    Is this an accredited Montessori school?

    No accreditation or membership from a recognized Montessori body (AMI, AMS, or Montessori Canada) is on file for this listing. Because "Montessori" isn't a protected trademark in the US or Canada — a 1967 USPTO ruling put the term in the public domain — any school can use the name regardless of how closely it follows the method. That doesn't mean this school isn't authentically Montessori; it means accreditation status isn't the way to check here. Ask the school directly about their teacher training (look for AMI or AMS-trained staff) and ask to observe a classroom work cycle.

    Accreditation is not the same as an operating licence. A provincial/state child care licence or private school registration only confirms a school is legally allowed to operate — it says nothing about whether the teaching method is Montessori.

    Teacher credentials matter too. Ask how many lead teachers hold AMI, AMS, or MACTE-accredited teacher training — a strong signal independent of the school's own accreditation status.

    Full guide: how to verify any Montessori school →

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