When should your child start preschool?

In Massachusetts, 2.9 is the usual entry point: that is the age where state licensing moves children from toddler to preschool classrooms. Most families start their child between 2.9 and 3.5, either in September or mid-year when a spot opens. If your child turns three in the winter, both paths work; the deciding factor is usually whether a classroom has room.

• They notice and gravitate toward other children
• They can spend a few hours away from you without distress
• They follow simple, familiar directions
• They seem restless or under-challenged in their current routine
• They want to do things themselves, even when it is slower

No child checks every box. Readiness also grows fast in the right environment, which is why a school watches your child in the classroom rather than scoring a checklist.

You do not have to wait for 2.9. Montessori schools run toddler classrooms from well before the preschool cutoff; at Beacon the Toddler program begins at 15 months. The room is designed for this age: low shelves, real but child-sized tools, and a small group with consistent adults. Children who start as toddlers also move up to the Primary classroom already at home in the school.

September is the natural rhythm, and most spots turn over then. Mid-year entry depends on openings, but it has a quiet advantage: your child joins a classroom that is already settled, and gets more adult attention in the first weeks. If the fall is full, ask to be contacted when something opens rather than waiting for the next cycle.

Visit anyway. A good school will tell you honestly whether to start now or wait a few months, and what would help in the meantime. Our own admissions process includes a visit with your child before any decision, so you are not guessing from a brochure. You can also compare approaches first in our guide to Montessori vs. daycare.