The Capstone Years
February 5, 2024

There are key times in children’s lives when they can consolidate emerging parts of themselves before moving into a new area of growth and change. Two significant times of change for young people are around age six and then again around age twelve, the kindergarten and 6th-grade years. Both biology and Montessori theory offer insight into why these are significant times in children’s lives.


Montessori’s Planes of Development


Dr. Maria Montessori believed that children’s work is to construct the adults they will become. This is really important work! Adults can support children’s own self-construction, but not actually do it for children. Children are able to accomplish self-construction through their own activity and interactions with the environment. 


Dr. Montessori’s observations of this self-construction led her to develop a theory of four planes of development. When looking at children’s development from a scientist’s point of view, Dr. Montessori found that development did not occur steadily but rather occurred in phases or planes. Dr. Montessori considered that the change in children, as they moved from one plane to another, was so profound that it resembled a rebirth.


Each plane or phase of development lasts for approximately six years: infancy (0 to 6), childhood (6 to 12), adolescence (12 to 18), and adulthood (18 to 24). The turning point around age six is when children are moving from infancy into childhood, and similarly, around age twelve they move from childhood into adolescence.


Biological Changes


Biologically, considerable hormonal changes are happening during these two transition times in children’s lives. While our society generally recognizes the biological shifts that happen as young people move into adolescence, we are less well-versed about what happens in our six-year-olds. 


It doesn’t take much, though, to realize change is afoot! Think about what we see in terms of dramatic physical changes around age six: their teeth start to fall out, their hair gets coarser, they lose that baby-soft skin, and they start to become leaner and lanky. Similarly, our twelve-year-old’s are on the brink of adolescence, another period of dramatic physical growth and change. 


However, there can be a gap between these physical signs of maturity and the cognitive and emotional development happening for our six-year-olds and twelve-year-old’s. Often children at these ages are moved too quickly into an environment that both doesn’t meet their needs and doesn’t honor the internal growth that still needs to occur. When this happens, they lose the environmental stability that allows them to develop a deeper sense of self-confidence and to truly consolidate the intellectual and emotional skills they have been developing over the previous years.


Capstone Years


In Montessori, we recognize the importance of these transitional years and intentionally design our learning communities to support young people during this time. The six-year-olds and twelve-year-old’s are the oldest in their classroom learning communities. They know the routines and expectations, they have secure relationships, and they get to help others who are newer to the classroom communities. 


Because they aren’t trying to assimilate into a new environment, our six- and twelve-year-old’s can serve as leaders for their mixed-age classrooms. They can focus on challenging work and big personal achievements. By being with their younger classmates, they can see where they have grown and how they got to where they are now. 


These are the capstone years, the final piece to complete the critical building-up that has been happening during the previous formative years. The level of mastery allows our young six-year-old and twelve-year-old leaders to integrate their social, emotional, and intellectual selves. 


During these capstone years, children gain a sense of self-confidence and self-satisfaction from their ability to successfully navigate the bigger projects that were beyond their capabilities in the earlier years. Plus, they do so in a community of adults and peers who have shared in their learning experience over several years.


By having the opportunity to integrate their learning in a safe, stable, and secure environment, our young learners can do their important work of self-construction. We invite you to visit our classrooms, so you can see for yourself the significance of these capstone years.



Teacher reading with young children, modeling attentive adult presence in early learning.
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Child using color-coded word cards to explore pronouns in a Montessori language activity.
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When children begin working with pronouns in Montessori, they are not learning something entirely new. Instead, they are bringing to consciousness language they already use every day. Pronoun work builds slowly and intentionally. It is not about mastering grammar rules, but about understanding how language functions and how meaning is carried when words stand in for one another. Beginning With Experience, Not Explanation Montessori pronoun work begins with movement and spoken language, not written grammar. We start with little oral games to highlight how a pronoun functions, sometimes eliminating the pronoun (“Josie and John and Jack and Josiah are walking around the table.”) and other times emphasizing the pronoun (“They are walking around the table.”). The children love acting out the phrases, sometimes chanting, moving, watching one another, and laughing. Through these physical experiences, they begin to notice that we don’t always use names when we speak. Certain words take the place of a noun, and the meaning is still clear. At this stage, we don’t offer the term pronoun because we want children to simply experience its function. From Movement to Sentences Once children are ready for more structured language work, we introduce them to the Pronoun Grammar Box so they can build and rebuild sentences using color-coded cards for each part of speech. From one sentence to the next, only a few words change as nouns get replaced by pronouns. By comparing sentences, children discover that although the word changes, the sentence still makes sense. This comparison is essential. Rather than being told what a pronoun is, children see what it does. We then invite children to add grammar symbols to the sentence (noun, article, adjective, verb, preposition, adverb) until we finally draw attention to the remaining word: “This word is used in place of a noun.” Only then do we introduce the pronoun symbol: a purple isosceles triangle, the height of the noun symbol. Montessori Lore: The Pronoun’s Story There’s a beloved story about the pronoun symbol. Long ago, the pronoun was shorter and a different color. Wanting to be as important as the noun, it stretched itself taller and taller to reach the same height. As it stretched, its base became smaller and it turned purple from the effort of standing in the noun’s place. It’s a poetic reminder of what children discover through their work: a pronoun depends on the noun, borrowing its meaning while standing in for it. Why Pronouns Come Later Pronouns are more abstract than other parts of speech. To understand a pronoun, children must already have a strong, concrete understanding of the noun. For this reason, pronouns (along with interjections) are typically introduced later than other grammar symbols, often in the elementary years. Even then, one lesson is not enough. In Montessori, the real learning happens after the presentation, when we step back and children work independently with the material. The guide’s role is to show how to use the material, not to explain grammar in detail. Understanding emerges through repeated use. Deepening Understanding Through Play and Exploration As children grow more confident, the work expands to include: Transposition games, where pronouns are removed or replaced to explore how meaning changes. Command cards, which physically isolate pronouns through action. Personal pronoun charts, introducing first, second, and third person (singular and plural) through storytelling. The Verb Family, where children explore the close relationship between the verb, adverb, and pronoun. Children discover that pronouns often work closely with verbs, helping to carry action and meaning through a sentence. Subtleties Come Later At first, Montessori avoids getting caught in fine distinctions. Over time, children may explore nuances such as the difference between possessive pronouns (the book is mine) and possessive adjectives (my book). These discussions often happen later, sometimes with the support of grammar references, once children have a solid foundation. Language Revealed, Not Taught Through this carefully layered progression of movement, sentence work, symbols, and exploration, children develop a deep understanding of how words function differently in sentences. Montessori grammar invites children to discover how language works at their own pace through hands-on exploration. We don’t rush this process. So by the time children are ready to name the pronoun, it’s not a new idea. It’s something they already know. We invite you to visit our classrooms in Delran, New Jersey to see firsthand the children’s joy of learning!