Stages of Development Series: Infancy
March 3, 2025

Imagine education from a fresh perspective—one that sees children not as empty vessels waiting to be filled but as whole individuals embarking on a lifelong journey of self-formation. From the moment of birth, children are driven by powerful internal forces that guide their growth and help them adapt to their unique time, place, and culture. This remarkable ability to evolve and adapt is a defining trait of our human species.


The Montessori approach to education is built upon this profound understanding of human development. Dr. Maria Montessori dedicated her life's work to observing how children grow and change over time, identifying key developmental stages that shape their path to maturity. Through her scientific observations, she identified four distinct planes of development, each with its own unique characteristics and needs.


In this four-part blog series, we’ll explore each of these four stages—birth to age six, six to twelve, twelve to eighteen, and eighteen to twenty-four—unpacking how Montessori education adapts to support children’s evolving needs at every phase of growth. By understanding these developmental stages, we can better support young people on their journey to becoming capable, independent, and fulfilled individuals.


Infancy (Birth to Age Six)


The first plane of development is an extraordinary period of psychological and physical growth. Newborns enter the world entirely dependent, unable to move or communicate. Yet, within just six years, they are walking, talking, and asserting their independence with intellect and will.


Characteristics of the First Six Years


During this transformative stage, children require ample sleep to support their rapid development. However, when they are awake, their curiosity knows no bounds. They explore their surroundings with boundless energy, using their senses to touch, smell, taste, hear, and examine everything in their environment.


Conquest of Independence


One of the primary goals during this stage is achieving functional independence. Children are eager to take care of their own needs and are naturally inclined to observe and imitate the actions of adults. The mantra of children at this stage is: “Help me do it myself!”


Sensitive Periods


Children in the first plane experience sensitive periods—windows of opportunity when they are uniquely receptive to acquiring essential skills.


Movement: Young children need movement to develop brain-body integration.


Order: They crave order to make sense of their surroundings, learning what happens and how objects are used.


Language Acquisition: This is a critical period for language development, during which children absorb words and speech patterns effortlessly.


These sensitivities drive children’s development, shaping their understanding of the world.


Observable Milestones


One of the most profound achievements in this phase is the acquisition of spoken language. Talking to newborns, for example, stimulates vocal cord development, and astonishingly, their vocal cords vibrate when adults speak to them. From being essentially mute at birth, toddlers can have a vocabulary of around 200 words by age two and an impressive 10,000 words by the end of this phase. This makes it essential to provide a language-rich environment during these formative years.


Physically, this period is one of monumental growth. Children progress from being immobile to sitting, crawling, walking, speaking, and independently eating. As adults, we must be mindful about supporting rather than hindering this development. We want to offer rather than limit growth opportunities for our children!


The Sub-Planes: Ages 0 to 3 and Ages 3 to 6


The first plane of development can be divided into two distinct sub-phases:


Ages 0 to 3: Children’s development is largely unconscious, driven by innate forces. During this phase, children absorb the world around them and do so without any filters. It’s important during this time that adults respect children’s natural developmental path without imposing external motivations.


Ages 3 to 6: During these years, children become more consciously aware of their actions and motivations. This is when we see the emergence of children’s willpower and the powerful drive to classify and understand their environment. Children become more conscious learners. 


As they grow, children naturally identify patterns, similarities, and differences based on their experiences. They construct their understanding of the world from scratch, and active experiences in their environment play a crucial role in shaping their cognitive development.


Social Development in the First Plane


During their first three years, children form strong bonds with their primary caregivers and family, finding comfort in a small social circle. They prefer solitary exploration and engage in parallel play.


By age three, children seek a broader social experience beyond the family. They require opportunities to interact with peers and engage in community life, which fosters independence and social development.


Creating a Supportive Environment


Providing the right environment is crucial to supporting children during their early years. Key elements of an optimal environment include:


A Secure Home: A safe and loving home helps children build trust and confidence in the world around them.


Freedom to Explore: Children need space and opportunities to move and explore safely, both indoors and outdoors.


Language Exposure: A rich linguistic environment helps children build vocabulary and develop confidence in self-expression.


Participation in Daily Life: Involvement in practical life activities helps children develop independence and a sense of belonging.


Cultural Experiences: Exposure to family traditions, rituals, and cultural practices helps children adapt to their culture and understand their place within it.


As children develop over the course of this stage of life, they also benefit from being part of a social community and, in the process, learn valuable lessons about cooperation, sharing, and responsibility.


By understanding the characteristics and needs of the first plane of development, we can create environments that nurture children’s natural growth, independence, and exploration. We invite you to visit our school to see for yourself how a prepared environment can meet the needs of our youngest children!


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!