The Planes of Development
Alison Petersen • September 27, 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.

summer
By Alison Petersen June 12, 2025
As parents of Montessori students, it is important to find the balance between the freedom and bliss of summer without losing the routines and knowledge for which you and your child worked so hard during the school year. The following are a few suggestions from the educators at Pincushion Hill Montessori School. Schedules: We encourage you to ease up on your children’s schedules and routines during the summer months. Bedtimes and waking times can be moved around so you can enjoy the relaxation offered by the summer months. We do encourage you to start easing back into your school year schedule a few weeks before school starts up again in the fall. Journaling: Help your children select a blank book or journal. Encourage them to record something in this book every day during the summer. This helps with literacy skills and creative writing. It also has the potential to serve as a keepsake your children will cherish for years to come. As summer sets in and siblings begin to squabble, redirecting your Montessori children toward journaling their feelings can also aid with conflict resolution. A summer journal can become an annual tradition for your family. Family Visits: It’s great family bonding time exploring local resources and places of interest. Historic homes, farms, zoos, walking trails and many other interesting opportunities that are close to home can be fun and educational adventures. Take small field trips throughout the summer and include your child in the planning. Around the House: Include your children in your daily household activities. If they aren’t doing so already, summer is the perfect time to encourage their assistance with planning meals for the week, grocery shopping, and meal preparation. Gardening: Tending to (or starting) a family garden at your home is a great idea. This will continue the education they receive at TMA, yield delicious rewards, and encourage growth in the craft of sustainability. Cooking: Involve your child in home cooking ingredients and recipes. This will foster learning, and make them more independent in years to come. Reading: Start a family book club by suggesting one or two book titles that they have not read. If some members of your family too young to read, end every evening by taking turns reading a book aloud. The anticipation of knowing what will happen next will keep everyone coming back for more. Family Games: Put together a scavenger hunt for your children. This can be a great option for a rainy day, but on a sunny day you can include biology and botany related clues outdoors. The hunt can be fun and educational in origin, testing your children’s knowledge or research skills. Ask: For specific academic skills that may need work or refreshing over the summer, do not hesitate to ask your child’s Montessori teacher, or your child himself. Identify what could be practiced, and create an easy routine that makes practice time enjoyable and fun. Pincushion Hill Montessori School is a school that enriches and educates children using the Montessori Method focused on academic subjects like math, language, science, sensorial and practical life. The private, year-round school was founded in 1962 and accepts children from 18 months old up to six years old. Students at the school are exposed to Montessori-style teaching approaches, including individual learning according to each child’s style and pace, multi-age classrooms that allow children to advance when they are ready, and a nurturing of students’ natural curiosity. 
By Alison Petersen April 24, 2025
Montessori education is not just about the classroom; it extends to the home environment and relies heavily on collaboration between parents and teachers to create a harmonious and effective learning experience for the child. Here are several reasons why a parent-school partnership is so important in Montessori education: Consistency in Approach One of the fundamental principles of Montessori education is consistency in the approach to child development. When parents and teachers work together, they can ensure that the child receives consistent guidance, expectations, and values both at home and in the classroom. This consistency promotes a sense of security and stability for the child, making it easier for them to adapt to the Montessori method. Understanding and Support Parents who are actively involved in their child's Montessori education gain a deeper understanding of the method and its principles. This understanding enables them to provide better support at home, reinforcing the concepts and values learned in the classroom. When parents and teachers share a common understanding of the child's development, they can work together to address any challenges or specific needs that may arise. Reinforcing Independence Montessori education places a strong emphasis on fostering independence in children. When parents and teachers collaborate, they can reinforce this independence by encouraging the child to take ownership of their learning and daily routines. Parents can create a Montessori-friendly environment at home, while teachers can provide guidance on age-appropriate tasks and activities. Individualized Learning Montessori classrooms prioritize individualized learning experiences tailored to each child's unique needs and interests. When parents are actively involved, they can provide valuable insights into their child's personality, learning style, and preferences. This information helps teachers design personalized learning plans that maximize the child's potential. Extended Learning Opportunities Learning doesn't stop when the child leaves the classroom. Parents can continue the Montessori experience at home by engagning in activities that align with Montessori principles. This extension of learning beyond school hours enhances the child's educational journey and reinforces the importance of learning as a lifelong endeavor. Children thrive when home and school work in harmony!