aria Montessori noticed that children of certain ages share certain characteristics in the ways in which they learn. She thus grouped children together in mixed age classrooms (e.g. 3-6 years old) and designed a curriculum to match their learning needs. Thus the Montessori program is meant to be a 3-year cycle. That is, children reap the most benefits from the program if they stay in it for 3 years as it was designed to be a continuous curriculum. A 3-year commitment is a little extreme, however, so a commitment to stay at the school for at least one year is required. The school will thus collect the full year’s worth of post-dated cheques at the time of registration including a security deposit.