Transformations: Montessori & Stage Theory
July 10, 2023

Trees start out small and then generally keep their form as they get progressively bigger and stronger. Children, however, change so much as they develop. Think about the transformations that happen from a newborn baby to a running toddler to a nine-year-old playing soccer to an adolescent driving a car. They almost don’t even seem like the same being as when they began!


Prior to the mid-1800s, people considered human development to be linear. A child was considered to be like a young adult who just got older and bigger, like a tree. However, the study of psychology changed the way we look at human development. Psychologists began to realize that humans pass through a sequence of different stages at different ages. This understanding of development as a progression was termed Stage Theory.

 

Origins of Stage Theory

 

Stage theories were popular during the time that Dr. Maria Montessori was developing her pedagogy. Stage theories take development and break it down into characteristically distinct stages assigned to specific ages. The theory assumes that certain characteristics are going to be developed during each stage. Stage theory also postulates that because certain aspects of development are supposed to happen during a particular stage, there are some innate powers available to individuals during that time. Those innate powers help individuals acquire the developmental progress for that stage. Stage theories also imply that there is also going to be a sequence to development and that stages can’t be skipped. The outcomes of one stage become the foundation for the following stage. 

 

Examples of Stage Theory 

 

A number of Dr. Montessori’s predecessors, contemporaries, and students were likely influencing her work, and likely she was influencing theirs. Some key individuals include:


Jean-Jacque Rousseau, of Geneva, postulated a stage theory of development in his book, Emile (1762). Rousseau presented an idealized “natural man” who was uncorrupted by modern society. He also proposed a system of education formulated around a specific pedagogy for each stage of life and the particular characteristics of each stage of human development. 

 

Sigmund Freud, of Austria, constructed a stage theory to describe the psychosexual development of humans. He described personality development as a series of stages and he believed that early childhood was the most important stage, with the individual’s personality being formed by about the age of five.

 

Erik Erikson, a German-American who also earned a Montessori certificate, proposed a theory describing eight distinct stages of development. He felt that how individuals face the challenge in each stage determined the outcome of the stage. He focused on the psychosocial aspects of humans.

 

Jean Piaget, of Switzerland, also developed a stage theory that described the psychosocial aspects of humans. Piaget proposed that children go through four stages of cognitive development. 


Lawrence Kohlberg, an American, was likely influenced by Piaget but focused on moral reasoning and the stages of moral development. 

 

Gail Sheehy, author and journalist, has documented stages of adult life and has written numerous books about stages, or what she calls passages (e.g. Passages: Predictable Crises of Adult Life).


Montessori’s Model: Planes of Development

 

Dr. Montessori didn’t develop stage theory but used this construct to help her better understand human development. What is different about Montessori’s stage theory is that it doesn’t focus on a particular aspect of development. Rather her framework is holistic and incorporates physical, social, emotional, and intellectual development.

 

Dr. Montessori called her holistic stage theory the “planes of development.” Each plane is a distinct psychological learning period that spans about six years: birth to six, six to twelve, twelve to eighteen, and eighteen to twenty-four. Each plane is characterized by the physical and psychological changes that take place, as well as the environmental needs of each plane. 


Dr. Montessori observed how the differences between each plane were so dramatic that the shift from one stage of development to the next was metamorphic. The same individual emerges from each plane, unrecognizable from the individual they were when they entered the previous plane.

 

Characteristics of the Planes of Development

 

Dr. Montessori passionately describes how education needs to follow these periods of development, so as to be sensitive to the rebirth that is happening for each individual. 

 

“The child does not grow in a uniform way day by day, at the same rate. In growth there are crises, somewhat like the metamorphosis of the insects….In fact, it is the child himself who will be the guide of education.” – Dr. Maria Montessori, The Four Planes of Education

 

The metamorphosis that happens in different periods of growth demonstrates the unique needs, behaviors, and characteristics of children at different ages. 

 

Since each developmental plane is distinct, it follows that the needs of individuals will also be distinct. Plus, at each stage children require different things from their environment. Furthermore, the successful completion of one phase sets individuals up for successful development in the next stage. 

 

Dr. Montessori was an optimist and didn’t see this need for successful completion of each stage as being fatalistic. She thought that missed opportunities within a plane of development could be overcome with conscious effort and work. Granted, this development wouldn’t happen as easily as if happened at the right time, but Dr. Montessori thought that if individuals applied themselves and worked, they could overcome some of these obstacles. The work accomplished outside of an intended plane, however, would never be as fully integrated as if it had happened during its intended time.


Montessori’s Unique Approach

 

When Dr. Montessori developed her theory on the planes of development, she didn’t describe development in a culturally specific context or time. She described universal aspects of human development in all cultures.

 

Two other aspects set Montessori’s work apart from stage theory. One was that she focused on what is normal development for children rather than what is abnormal. Also, she not only articulated her theory of the planes of development but then went a step further and developed an educational approach that supported it. 


In Montessori, everything we do for children–all of our methods, materials, and environments–is reflective of our understanding of the planes of development. We understand the needs of children in the different stages of their development and know we have a profound responsibility to support those needs. 


We would love to have you schedule a tour to see how we create environments for the specific needs of children at each stage of their development!


April 28, 2025
Elementary-aged children have an innate desire to learn about the universe, the world, places, people, and how they interact. They yearn to understand why and how. They are eager to understand not only the culture in which they live but also make sense of the magnitude of cultures (human and non-human) that make up the entire world and, indeed, the entire cosmos. Dr. Maria Montessori developed Cosmic Education as a guiding framework for children in the second plane of development (ages 6 to 12). Comic Education is designed to nurture their reasoning minds and imagination while fostering a sense of interconnectedness and wonder. The Philosophy of Cosmic Education Dr. Montessori described Cosmic Education as an approach that offers children a vision of the universe and its order and a way to understand how all things are interrelated. “If the idea of the universe be presented to the child in the right way, it will do more for him than just arouse his interest, for it will create in him admiration and wonder... his intelligence becomes whole and complete because of the vision of the whole that has been presented to him.” – Dr. Maria Montessori To Educate the Human Potential Rather than teaching isolated subjects, Cosmic Education presents an integrated curriculum where history, science, geography, language, and math are interwoven into a grand narrative. This holistic approach helps children see themselves as part of both a larger human story and the natural world. The Scope of Cosmic Education Unlike traditional curricula focused on skills, facts, and assessments, Cosmic Education prioritizes deep exploration. As Montessori educators, we recognize that we are guides who plant seeds of interest, knowing that these seeds may germinate later in life. We encourage children to pursue knowledge freely, follow their curiosity, and make connections across disciplines. At its core, Cosmic Education is centered around key themes: Natural Laws: The universe follows natural laws, from gravity to the water cycle, which children observe and study. Human societies also create laws to maintain order and cooperation. Work & Contributions : Everything in nature and human civilization has a role to play. From the work of bees pollinating plants to the contributions of scientists and artists, children see how each element of the universe is purposeful. Interdependencies & Relationships : All systems in the universe, from ecosystems to human economies, are interconnected. Montessori education highlights these relationships to foster understanding and responsibility. Love, Appreciation, & Gratitude : Cosmic Education nurtures a sense of reverence for the universe, whether through scientific discovery or historical narratives. The Great Stories: A Foundation for Learning Cosmic Education is introduced through the Great Stories, a series of imaginative, inspiring tales we share with wonder and reference. These stories not only provide a tantalizing glimpse into the marvels of the universe, they also provide a framework for deeper study. In order to bring significant concepts to life, Montessori elementary guides appeal to students’ imagination through allegory, metaphor, beautiful language, charts, and dramatic demonstrations. The Great Stories include: The Creation of the Universe (“God with No Hands”) – An awe-inspiring story about the origins of the universe, the formation of galaxies, and the forces that shape our world. The Coming of Life – A journey through the evolutionary changes of life on Earth that culminates in an introduction to the fascinating Timeline of Life. The Story of Humans – Explores the unique intellectual and creative capacities of human beings, emphasizing imagination and innovation. The Story of Communication in Signs/The Story of Our Alphabet Story – Traces the development of written language, from ancient symbols to modern alphabets. The Story of Our Numerals – Highlights how mathematics is another kind of human language and introduces the power of math to bring order and exactness, including how math has allowed humans to meet their needs in different ways. These stories captivate children’s imaginations, prompting further exploration of subjects like physics, chemistry, history, and biology. They provide a unifying theme that integrates all areas of study, reinforcing the idea that learning is not fragmented but part of a cohesive whole. Outcomes of Cosmic Education Dr. Montessori’s vision of education extends beyond academics; it is about shaping compassionate, knowledgeable, and socially responsible individuals. She believed that understanding our place in the cosmos fosters humility, gratitude, and a commitment to improving the world. Through Cosmic Education, children develop: A sense of purpose, recognizing that their work and actions contribute to the greater whole. An organized and analytical mind, capable of seeing patterns and relationships in complex information. A deep appreciation for humanity and nature, encouraging them to become responsible stewards of the Earth. A lifelong love of learning, driven by curiosity rather than external rewards. Nurturing wonder, critical thinking, and interconnected understanding lays the foundation for a lifetime of meaningful learning and engagement with the world. Ultimately, Montessori’s Cosmic Education is more than a curriculum—it is a philosophy that empowers children to view themselves as active participants in the ongoing story of the universe. The best way to learn about Cosmic Education is to come see it in action! Schedule a tour today!
Tattling vs. Telling: A Montessori Approach
April 21, 2025
Help children navigate social conflicts with empathy and problem-solving. Learn how to reframe tattling, guide constructive conversations, and build independence!