Montessori Basics: The Planes of Development

Montessori Thrive • March 26, 2023

Maria Montessori based her entire educational philosophy on the idea that children developed through a series of four planes. Each of these planes is easy to recognize and has clear, defining characteristics. If we study and understand these stages, we can approach our interactions with children with a new perspective.

Learning about the planes of development isn’t just for Montessori educators. Understanding your child’s development can help at home, too.

The First Plane: birth-6 years

During this stage children absorb everything like sponges. They are, indeed, excellent examples if what Montessori called ‘The Absorbent Mind.’ This is a time in which we are able to utilize what Montessori called sensitive periods of learning. While each child is different, there are typical patterns that emerge in regards to brain development and general readiness to learn particular skills.


During the first three years of this plane, all learning is done outside of the child’s conscious mind. They learn by exploring their senses and interacting with their environment. During the second half of the plane, from about 3-6 years, children enter the conscious stage of learning. They learn by using their hands, and specialized materials in the Montessori classroom were developed with this consideration.


During this time, children have a wonderful sense of order. They are methodical and can appreciate the many steps involved in practical life lessons in their classrooms. The organization of the works on their classroom shelves is intentional, which appeals again to this sense of order.


The first plane is a time in which children proclaim, “I can do it myself”; it is a time of physical independence.

The Second Plane: 6-12 years

During the elementary years children begin to look outside themselves. They suddenly develop a strong desire to form peer groups. Previously, during the first plane, a child would be content to focus on their own work while sitting near others. In the second plane, a child is compelled to actually work with their friends. It is during this time that children are ready to learn about collaboration.


During the second plane there is a sudden and marked period of physical growth. This may be a contributing factor to the observation that many children of this age seem to lack an awareness of their body, often bumping into things and knocking things over. Children begin to lose their teeth around this time as well. Their sense of order and neatness tend to fade a bit during this plane.


Throughout the second plane, children’s imaginations are ignited. Since Montessori education is based in reality, we find ways to deliver real information to children through storytelling and other similar methods. For example, when teaching children about the beginnings of our universe, Montessori schools use what is called a Great Lesson. The first Great Lesson is a dramatic story, told to children with the use of props, experiments, and dramatics (think: a black balloon filled with glitter is popped to illustrate the Big Bang, with bits of paper in a dish of water used while talking about particles gathering together). This lesson is fascinating for children in the way it is presented, but gives them basic information about the solar system, states of matter, and other important concepts.


Children in the second plane have a voracious appetite for information, and are often drawn strongly to what we in Montessori call the cultural subjects: science, history, and geography. While we support their rapid language and mathematical growth during this time, we are also responsible for providing them with a variety of rich cultural lessons and experiences.


It is important to note that children develop a sense of moral justice at this time. They are very concerned with what is fair, and creating the rules to a new game is often as important (if not more so) than playing the actual game itself.


This is the period of time in which children are striving for intellectual independence.

The Third Plane: 12-18

The third plane of development encompasses the adolescent years. During the second plane, children become aware of social connections, but in the third plane they are critical. During this time children rely heavily on their relationships with their peers. They feel a strong desire to remain independent from adults, although they are not quite ready to do this entirely. It is our job to find ways that allow them to experiment with independence while also providing a safe structure in which they may do so.


Children in the third plane tend to require more sleep, and they sleep later than when they were younger. They long for authentic learning experiences, and Dr. Montessori imagined just that. Her ideas of Erdkinder (children of the earth) led her to contemplate a school setting that would support children’s development during this time. She imagined a farm school, in which children would work to keep the farm operational, but also contribute to planning and decision making while doing so.


During the third plane children are refining their moral compass while developing a stronger sense of responsibility.

The Fourth Plane: 18-24

The final plane is a time in which young adults are striving for financial independence. They are often living away from home for the first time, and use this time to figure out where they fit into their society. Many make choices to further their education and/or explore career paths.


It is during the fourth plane that people begin to develop a truer sense of who they are as individuals.


Each plane of development should be mindfully nurtured. If a child is able to experience one developmental phase in a rich and carefully prepared environment, they are ready to fully take on the next phase when it is time.

Boy playing with a wooden shape puzzle at a table in a classroom.
September 14, 2026
Parenting is a journey that requires emotional reserve. Learn practical ways to slow down, practice self-care, and bring a calm, grounded presence home.
Child playing with toy animals and sand in a white tray at a table indoors
September 7, 2026
Wondering what drives your child’s behavior? Explore how innate human tendencies shape how children learn, move, and connect—and how to support them at home.
Child playing with stacking toys at a red table in a sunlit classroom
August 31, 2026
Discover how Montessori Practical Life activities build confidence, motor skills, and genuine independence—plus simple ways to support real work at home.
Toddler painting numbers on paper with watercolor set on a floor.
August 24, 2026
Learn how Montessori Oaks uses "materialized abstraction" and Color Tablets to build concentration, sensory refinement, and visual discrimination in young children.
Child leaning over a wooden sensory bin, examining objects at a table in a classroom.
August 17, 2026
Learn how fostering your child’s developing will builds genuine self-discipline, resilience, and independence—both in the classroom and at home.
Child in red shirt sitting on the floor and reaching up to pop bubbles in a playroom.
August 10, 2026
Learn about the four main sensitive periods in early childhood and how Montessori environments meet your child’s natural developmental needs.
Three children stand around a garden bed, looking down at plants and weeds outdoors.
August 3, 2026
Explore how stepping back, offering empathy, and avoiding "interviewing for pain" helps children build lifelong social skills.
Adult and child looking at photo cards on a table in a classroom-like room
July 27, 2026
Step inside Montessori Oaks to discover how a thoughtful balance of freedom and order helps young children develop independence, confidence, and a lifelong love of learning.
Child inspecting a wooden abacus at a table, reaching toward colorful beads in a classroom setting
July 20, 2026
Explore how a Montessori Oaks education fosters lifelong success by nurturing intrinsic motivation, deep curiosity, and innovative thinking in every child.
By Montessori Oaks • July 15, 2026
5 Signs Your Toddler Is Ready for Montessori As parents, we all want to give our children the strongest possible foundation. The toddler years are an incredible period of growth—a time when children begin to discover their independence, express curiosity, and develop the skills that shape how they learn. Many parents wonder, "Is my toddler ready for Montessori?" The answer may surprise you. Montessori education was designed specifically to support young children during these important developmental years. Here are five signs your toddler may be ready to begin their Montessori journey. --- 1. Your Toddler Wants to Do Things Independently Have you heard phrases like: "I do it!" "Let me try!" "I can do it myself!" While these moments can sometimes require extra patience from parents, they are actually signs of incredible growth. Dr. Maria Montessori recognized that children have a natural desire to become independent. Montessori classrooms are designed to encourage this independence in healthy ways. Through practical life activities like pouring water, preparing snacks, cleaning, dressing, and caring for their environment, toddlers learn: ✓ Confidence ✓ Responsibility ✓ Problem-solving skills ✓ Self-control Every small accomplishment teaches children an important message: I am capable. --- 2. Your Toddler Is Curious About Everything Toddlers are natural scientists. They want to touch, explore, test, and understand the world around them. Questions, discoveries, and exploration are signs that your child's mind is actively growing. Montessori takes this natural curiosity and nurtures it through hands-on learning experiences. Instead of simply telling children how something works, Montessori allows them to discover through activities involving: Nature exploration Early math materials Art and creativity Science and sensory experiences When children enjoy the process of discovery, they develop something more valuable than memorized information—a lifelong love of learning. --- 3. Your Toddler Enjoys Hands-On Activities Young children learn best by doing. Before children can understand abstract concepts like numbers and letters, they need opportunities to see, touch, and experience learning. Montessori materials are designed to teach through movement and exploration. For example: - Building with blocks strengthens spatial awareness. - Sorting activities develop early math skills. - Pouring and transferring activities improve coordination. - Sandpaper letters prepare children for reading and writing. To adults, it may look like play. To children, it isd exploring brain development happening right before our eyes. --- 4. Your Toddler Is Learning to Focus Many parents are surprised by how deeply toddlers can concentrate when given the right environment. A Montessori classroom is intentionally designed to be calm, organized, and inviting. Children are given time to choose meaningful activities and work without unnecessary interruptions. Over time, children strengthen their ability to: ✓ Focus longer ✓ Complete tasks ✓ Be patient ✓ Overcome challenges These skills become the foundation for future academic success. --- 5. Your Toddler Is Ready for Social Growth The toddler years are when children begin learning how to interact with others, communicate feelings, and become part of a community. Montessori classrooms help children practice: - Sharing space respectfully - Using kind words - Helping classmates - Developing empathy Children are not just learning academics—they are learning how to become thoughtful, confident, and compassionate individuals. --- Is Montessori the Right Next Step for Your Toddler? If your toddler is showing independence, curiosity, a desire to explore, or excitement about learning, they may be ready to thrive in a Montessori environment. At Montessori Oaks, we believe every child is like a little acorn—filled with unlimited potential. With the right environment, patience, and guidance, they can grow into confident learners prepared for the future. The best way to understand Montessori is to experience it. See our classrooms in action. Schedule a tour at Montessori Oaks today and discover how your child's journey can begin.
Show More