How Mixed-Age Montessori Classrooms Work

Why are children of different ages together in a Montessori classroom? At Julia Brown Schools, children are intentionally grouped within three years of one another, following the Montessori three-year cycle. This allows children to learn within a familiar classroom community while progressing through lessons according to their individual readiness.

While public schools generally group children by age and grade, Montessori creates a community where children learn from not only their Directress, but also their peers. Younger children have opportunities to observe more experienced classmates, while older children develop leadership, confidence, and responsibility.

What is a three-year cycle?

Maria Montessori found that children move through distinct periods of development. One of these cycles is ages 3-6, our mixed-age class of Primary and Kindergarten students. Mixed-age classrooms are also one of the defining characteristics of an authentic Montessori program. Learn more about 10 Signs of an Authentic Montessori Program.

For this class, our morning session is a traditional mixed-ages Montessori class. The children receive individual lessons and work independently while developing strong concentration skills. The afternoon session is Kindergarten only, focusing on extensions of the materials.

Here’s the progression of each year in the cycle:

Year 1:

• Become familiar with the classroom and its routines

• Learn how to use and care for Montessori materials

• Develop concentration and independence

• Build early literacy through sound games, the sandpaper letters, and beginning phonetic awareness

• Explore early math concepts using concrete materials like the number rods and sandpaper numerals.

• Begin practical life and sensorial work that lays the foundation for later academic skills

Year 2:

• Build upon concepts introduced during the first year

• Develop greater familiarity and mastery of Montessori materials

• Take on more independent work

• Advance in reading and writing through the moveable alphabet, phonetic blending, and early sentence work

• Deepen math understanding with the golden beads, introducing place value and the four basic operations

• Expand cultural studies in geography, botany, and zoology through hands-on exploration

Year 3:

• Work with more challenging materials

• Mix concepts across different areas of the classroom

• Perform extensions of Montessori materials

• Develop creativity, confidence, and leadership

• Apply reading fluency to research projects, creative writing, and grammar work

• Move into abstract math reasoning, working toward memorization of math facts and multi-digit operations

• Mentor younger students while refining academic skills across language, math, and cultural subjects

Over the three years, a child grows from being one of the youngest members of the classroom to becoming one of its most experienced students. This natural progression allows children to develop within a familiar community while learning from and contributing to the classroom.

Our experienced Directresses also have the opportunity to know children extremely well over time, observing their development and understanding their individual strengths, interests, and readiness for new challenges.

How Do Children Learn From One Another?

One of the benefits of a mixed-age classroom is that children learn from more than just their Directress.

A younger child may watch an older student:

• Choose work independently

• Carry and use Montessori materials carefully

• Prepare a snack

• Read or write

• Solve a problem

• Return materials to their proper place

Over time, younger children can begin practicing these same behaviors and developing greater independence.

Older students, meanwhile, have opportunities to demonstrate skills they have already mastered and help younger classmates. These experiences can build patience, confidence, communication, and leadership.

Do Children of Different Ages Do the Same Work?

No. One common misconception about mixed-age Montessori classrooms is that all of the children are expected to complete the same activities.

In a Montessori classroom, children can be working on very different lessons at the same time.

At Julia Brown Schools, our Montessori Directresses observe children as they work and use those observations to determine when to introduce new lessons and materials.

Rather than assuming that every child is ready for the same lesson because they have reached a particular birthday, teachers look at the individual child.

A child who is ready for a greater challenge can move forward. A child who needs additional practice has the opportunity to continue developing a skill without being rushed simply because other children have moved ahead.

This individualized approach is one of the reasons Montessori classrooms can support children with different learning styles, personalities, interests, and levels of independence.

Our advanced curriculum is designed to challenge each child as they are ready.

What Does a Mixed-Age Montessori Classroom Look Like?

A typical Montessori classroom is active, but purposeful. Rather than having every child sit together and complete the same worksheet or assignment, children may be engaged in different types of work throughout the classroom.

You might see one child working independently with a Montessori material, another receiving a lesson from the teacher, and another working with a classmate.

Children learn to choose appropriate work, concentrate on an activity, care for classroom materials, and return work when they are finished.

The classroom environment is designed to support this independence.

Montessori Learning at Julia Brown Schools

Julia Brown Schools has provided Montessori education to Maryland families since 1967. Our schools were founded by the Brown Family and continue to be family-operated today.

Our MSDE-accredited Montessori programs serve children from 15 months through Third Grade at four Maryland campuses:

• Olney, Maryland

• Columbia, Maryland

• Laurel, Maryland

• Silver Spring, Maryland

Our programs include Toddler, Primary, Kindergarten, and Elementary. Our Elementary Class serves First, Second, and Third Grade students, allowing children to continue in a Montessori environment through the early elementary years.

Is Montessori Right for My Child?

Children who enjoy hands-on learning, developing independence, working with purpose, and having some choice within their day may particularly enjoy a Montessori classroom.

Families should also consider whether they value an education that emphasizes individual progress rather than having every child complete identical work at the same time.

The best way to determine whether Montessori is a good fit is to schedule a tour and experience JBS firsthand. Seeing how children work, interact, and move through their day can provide much more insight than reading about Montessori alone.

Read more: Is Montessori Right for My Child?

About the Author

Julia Brown Schools

Julia Brown Schools has provided Montessori education to Maryland families since 1967. The school continues its family legacy under the leadership of Ms. Komesarook, General Manager, who has served in that role for more than 35 years.

For school-specific information, program details, and enrollment availability, please contact the individual Julia Brown Schools campus.

Published: August 2026

Updated: August 2026