True to the Montessori ethos, we divide our students into three age groups: Infants, Toddlers and Casa. At IMSA, we have five classes made up of these different age groups, and directed by trained and certified Montessori Directress.

We believe that a lower staff-to-child ratio allows our teachers to be more sensitive and responsive to the needs of the children we care for. Our adult-to-child ratio is 1:4 in our Infants Group, 1:6 in our Toddler Group and 1:8 in our Casa Group.

Baby chewing a block

Butterflies: Infant Class


Students are from nine months to two years old. There are eight infants in this class.

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Children colouring in

Bunnies: Toddler Class

Students are two to three years old. There are eighteen students in this class.

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Child playing in Montessori nursery

Dolphins: Casa Class

Students are three to six years old. There are twenty-four students in this class.

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Preschool age child

Elephants: Casa Class

Students are three to six years old. There are twenty-four students in this class.

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Child playing with toy oven

Hummingbirds: Casa Class


Students are three to six years old. There are twenty-four students in this class.

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