As part of my Montessori adolescent teaching program, I have to take notes in class on various parts of the Montessori philosophy – via her essays, lectures or of lectures given my Montessori teachers. I am sharing my notes for others who might benefit from them.
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“The essential reform is this: to put the adolescent on the road to achieving economic independence. We might call it a ‘school of experience in the elements of social life.”
Maria Montessori, From Childhood to Adolescence
What are the 4 Planes of Human Development?
- The Four Planes of Development is Montessori’s theory of human development.
- It includes all aspects of a child’s development – intellectual, social and psychological
- Not a prescribed curriculum
- Not a linear theory of development but one that is marked by stages (planes, phases).
How do the 4 Planes of Human Development work?
- There are 4 planes of development (6 years each)
- 0-6-years old
- 6-12-years old
- 12-18-years old
- 18-24-years old
- In each stage, the child has different physical and psychological needs.
The 4 planes illustrated (2 versions)
The Constructive Rhythm of Life Chart
- Illustrates the linear theory of human development (bottom right corner).
- Shows the cyclical planes of development (above).
Image Breakdown
- It begins with the flame of creation (as seen above) – The new human being is aflame with potentialities for development.
- In the first plane of development:
- Period of physical and “spiritual” construction
- Need to feel loved and protected
- Mind doesn’t choose for itself
- Period of adaptation to surrounding environment
- Development of ability to formally communicate
- Development of coordinated movement
- Spontaneous physical movement
- Use of sensory organs important
- Work alone or in parallel
- Need for purposeful work
- 2nd plane of development:
- Greatest potential for intellectual development
- Relatively calm and stable
- Disappearance of rounded, baby-like contours of the body and face
- Lose teeth
- More robust and less sickly
- Ready to move from concrete learning to abstract learning
- Use imagination
- Need more internal than external order
- Adventuresome
- Sense of justice
- Social; “Herd Instinct”
- Big work
- “Hero” worship
- 3rd plane of development
- Idealism
- Need to discover their intended vocations
- Great change and relative instability
- Puberty
- Rapid physical and emotional changes
- Emotional and sensitive
- Need nurturing environment
- Need for respect
- Decrease in intellectual capacity
- Abstract learning
- 4th plane of development
- Spiritual, emotional and moral independence
- Think about place in and contributions to society and humanity
- Have personal interests
- Evaluation of social policy
- Personal responsibility
- This concludes in Finality
- Finality is the result of the work of the child – the formation of the adult.
- The prepared adult cannot “form” the child
- The prepared adult must support natural development so the child can form themselves.
- Divided inclined plane (below the graphic)
- Represents the traditional method of education
- Each subsection of the plane corresponds to the four planes of development above
- The gray plane shows a simple progression
- The arrows indicate the energies/focus of the adult in supporting development.
- In traditional education, the plane of early childhood is less supported than is the plane of early adulthood (corresponding to the university years).
Four Distinct 6-Year Stages
- Stages:
- 0–6 years
- 6–12 years
- 12–18 years
- 18–24 years
- Subdivisions:
- First 3 years: Creation/acquisition of knowledge and skills.
- Fourth to sixth years: Periods of consolidation/crystallization.
Color Coding:
- Red: Stages of rapid and dramatic physical/psychological development.
- Blue: Stages of calmer, even development.
Split and Parallel Planes:
- Split Planes (red stages):
- Marked by specific characteristics within sub-planes.
- Parallel Planes:
- 0–6 and 12–18 planes.
- 6–12 and 18–24 planes.
- Denote similarities between characteristics of the paired planes.
The Bulb Chart
- Represents the organic nature of development.
- Includes a model of traditional education (lower right corner).
- Retains the six-year planes of development.
Image breakdown
- The Nebulae (Initial Stage)
- Represented by a large dark bulb at the beginning
- Black coloring symbolizes the unconscious nature of development
- Contains all of the child’s potential capabilities
- First Plane of Development (Ages 0-6)
- Marked by points 0, 3, and 6 on the diagram
- Red coloring indicates intensive physical and psychological development
- Divided into two distinct phases:
- Unconscious Absorbent Mind (0-3 years)
- Mind functions like a camera, capturing everything without filters
- Indiscriminate absorption of environmental inputs
- Modern brain research confirms this rapid developmental period
- Black coloring emphasizes unconscious nature
- Conscious Absorbent Mind (3-6 years)
- Continues environmental absorption while adding organization
- Period of sorting and categorizing previous impressions
- Focuses on personality integration and consolidation
- Gradual transition from black to red shows shift from unconscious to conscious development
- Unconscious Absorbent Mind (0-3 years)
- Second Plane of Development (Ages 6-12)
- Represented by the green line between ages 6 and 12
- Characterized by calm, steady development
- Serves as a bridge:
- Built upon foundation of First Plane
- Preparatory phase for Third Plane
- Third Plane of Development (Adolescence)
- Marked by red swelling in the diagram
- Represents pubertal development
- Shows creative powers emerging both physically and psychologically
- Similar to First Plane’s development pattern but less dramatic in scope
- Fourth Plane of Development
- Mirrors the stability of the Second Plane
- Represented as another period of stable growth
- Adulthood
- Shown as segmented green line continuation
- Suggests ongoing developmental periods beyond the fourth plane
- The “X” Symbol
- Represents the unknown adult in development
- Symbolizes continuing personal growth
- Inclined Plane of Causality
- Parallels the Constructive Rhythm chart
- Illustrates traditional educational approach
- Shows varying levels of energy and support needed at different developmental stages
Color Coding and Stages:
- Swelling and Red:
- Periods of intense physical and psychological growth.
- Green:
- Periods of more stability.
- Black (0–3 years):
- Labeled the unconscious absorbent mind.
- Red (3–6 years):
- Labeled construction of the conscious mind.
- Corresponds to the split 0–6 triangle on the Rhythm chart.
- Red swelling (12–18 years):
- Represents puberty.
The First Plane of Development (0–6 years)
Divisions
- Divided into two sub-planes:
- 0–3 years: Unconscious absorbent mind.
- 3–6 years: Conscious absorbent mind.
Developmental Progress
- Transition from physical construction (in utero) to psychological construction (in environment).
- Progression from physical embryo to psychic embryo.
Physical Growth
- Period of explosive growth:
- Newborn progresses to a six-year-old with dramatic physical changes.
- Skills acquired: crawling, walking, running, controlling hands, and directing actions.
- Language: Absorbs and reproduces spoken language(s) with growing precision.
- Attachment: Builds connections with caregivers, then gains independence.
- Culture: Absorbs environment, culture, and moral framework.
Psychological Growth
- Focused on self-construction:
- Described as egotistical (not pejorative).
- Work of self-construction assisted by The Absorbent Mind.
- 0–3 years: Mind captures images indiscriminately, like a camera (Unconscious Creator).
- 3–6 years: Mind begins sorting, categorizing, and organizing impressions (Conscious Creator).
Sensitive Periods
- Definition:
- Universal periods of intense intrinsic motivation towards specific activities that aid development.
- Characteristics: Intense interest, repetition, focused concentration, and distress when restricted.
- Focus Areas:
- Language
- Order
- Movement
- Refinement of the senses
- Importance:
- Work during sensitive periods energizes rather than tires the child.
- Skills acquired easily and perfectly during these periods.
- Sensitivity fades once the skill is acquired; delayed acquisition requires more effort and lacks perfection.
Sensorial Learning
- Role:
- Critical for young children to explore and refine senses.
- Activities in a prepared environment support this refinement.
- Montessori Materials:
- Developed apparatuses (e.g., Color Tablets) for sensorial learning.
- Materials provide “materialized abstractions” for exploring abstract concepts.
- Sensorial memory of these experiences supports intellectual inquiry in the Second Plane.
Normalization
- Definition:
- Borrowed from anthropology: becoming a contributing member of society through personality development.
- Happens when children develop naturally with minimal interference from adults or the environment.
- Supported Through Activity (“Work”):
- Activity must be developmentally appropriate and freely chosen.
- Focus emerges gradually as the child transitions from unconscious to conscious mind.
- Stages of Activity Supporting Normalization:
- Preparation:
- Gathering and organizing materials before activity.
- Engages focus on the task ahead.
- Concentration:
- Spontaneous, prolonged periods of deep engagement in the activity.
- Repose:
- Quiet satisfaction after completing and tidying up the activity.
- Preparation:
- Four Indicators of Normalization:
- Love of work: Independent, enthusiastic choice of purposeful activity.
- Concentration: Deep, sustained focus.
- Self-discipline: Perseverance to complete the full cycle of work.
- Sociability: Cooperation, self-control, and empathy in group settings.
Casa dei Bambini (Children’s House)
- Provides opportunities for:
- Care of self
- Care of the environment
- Care of others
- Through freely chosen, uninterrupted activity, children:
- Transition from egotistical focus to group awareness.
- Form “society by cohesion,” an unconscious bond of love.
Outcome at the End of the First Plane
- Integration of personality.
- Strengthened self-discipline.
- Gained functional independence.
- Internalized family and community ethics, attitudes, and cultural values.
- Foundations laid for:
- Intellectual reasoning
- Language acquisition
- Will to act and move
The Second Plane of Development (6–12 years)
Focus and Key Characteristics
- Transition from functional independence to intellectual independence:
- First plane: “Help me to do it by myself.”
- Second plane: “Help me to think by myself.”
- Key traits:
- Imagination and reasoning mind.
- Gregarious nature—enjoys working in groups.
- Sensitivities to moral questions (fairness, justice).
- Interest in culture, stories, codes, secret languages, and outdoor exploration.
Developmental Themes
- Imagination:
- Enables exploration of time, space, and abstract concepts.
- Lessons appeal to imagination, rooted in reality by reasoning mind.
- Cultural Exploration:
- Intellectual exploration of culture through organization and categorization of earlier impressions.
- Interest in universal physical and spiritual needs across time and space.
- Group Work:
- Strong desire to work with peers outside the family.
- Develops independence by organizing group activities without adult assistance.
- “Big Work”:
- Engages in large, complex, and collaborative projects.
- Focuses on process and problem-solving rather than efficiency.
- Includes academic, social, and physical work.
Moral Development
- Strong interest in justice, fairness, and moral questions.
- Creates and sustains a “practice society” to explore individual vs. group needs.
- Develops personal codes of conduct and tests moral compasses.
Gratitude and Contribution
- Shifts from inward focus to outward recognition of others’ contributions.
- Develops gratitude for people, nature, ideas, and contributions across time and space.
- Begins imagining their own potential to contribute to society.
Cosmic Education
- Montessori’s plan for the second plane, focusing on:
- Interdependence of all things.
- Abstraction and exploration of universal principles.
- Components:
- Great Stories:
- Stories of the universe, life, humans, language, math, and love.
- Inspire deep inquiry and self-construction.
- Materialized Abstractions:
- Charts, timelines, and concrete materials for moving from concrete to abstract thinking.
- Reference Materials:
- Limited supply encourages research beyond the classroom.
- Supplies for Independent Work:
- Open-ended resources for creative and intellectual exploration.
- Great Stories:
“Going Out” Experiences
- Excursions planned and executed by children with minimal adult interference.
- Develops skills in planning, budgeting, communication, and responsibility.
- Lessons often stem from moral negotiations within the group.
Prepared Environment
- Designed to support freedom and responsibility.
- Encourages purposeful, pleasurable work.
- Operates under a culture of choice and love.
Outcomes at the End of the Second Plane
- Understanding of:
- Laws governing the universe and life on Earth.
- Human culture and contributions across time and space.
- Skills gained:
- Independent research.
- Living and collaborating within a community of peers.
- Holistic, ecological, and evolutionary understanding of the cosmos.
- Deep gratitude for contributions throughout history.
The Third Plane of Development (12–18 years)
Overview
- Adolescents are “social newborns,” transitioning from childhood to adulthood.
- Key tasks:
- Orient to their new adult bodies and roles in society.
- Move toward economic and social independence.
- Self-construct through purposeful work and community contributions.
Developmental Task
- Primary goal: Become an adult who can meet their own needs and contribute to society.
- Work focus:
- Practice adult-like activities in a structured, collaborative environment (microcosm of society).
- Explore social organization and interdependence.
- Gain confidence through purposeful contributions.
Core Questions Adolescents Ask
- Who am I?
- What am I good at?
- Where do I fit in?
- What am I good for?
- How may I serve others?
Key Educational Principles [this is excellent and aligns perfectly with the School of Entrepreneuring]
- Support through purposeful work:
- Provide opportunities to contribute to peer and adult communities.
- Balance freedom with responsibility.
- High expectations:
- Encourage work of “adult” standards with guidance and scaffolding.
- Avoid over-helping or leaving adolescents unsupported.
- Self-construction, not memorization:
- Education focuses on skills, independence, and self-confidence rather than content memorization.
Economic Independence
- Adolescents seek participation in systems of production, exchange, and division of labor.
- Work in both local and broader communities to explore personal interests and societal contributions.
- Opportunities to balance individual and community needs.
Social Development
- Adolescents form strong social networks and peer loyalties.
- Family remains important, but adult mentors play a critical role as co-workers and models.
- Adolescents explore and “try on” various roles: leaders, followers, activists, skeptics, etc.
Identity Formation
- Adolescents seek to answer “Who am I?” through:
- Creative self-expression (gender, culture, politics, etc.).
- Role experimentation and exploration.
Justice and Dignity
- Concern shifts from personal fairness to broader societal justice.
- Desire to collaborate with others and contribute to societal well-being.
- Evolved understanding of human interconnection as a social reality.
Prepared Environment
- Includes purposeful, collaborative work in a microcosm of society.
- Opportunities to plan and execute real-world projects.
- Encourages exploration of freedom, responsibility, and interdependence.
Outcomes of the Third Plane
- Adolescents develop:
- Economic independence and practical skills.
- A sense of their worth and role in society.
- Understanding of societal mechanisms and interdependence.
- Compassion, respect, and the ability to tolerate ambiguity.
Human Tendencies by plane of development (good chart)
The Fourth Plane of Development (18–24 years)
Overview
- Montessori did not extensively study this plane but left foundational observations for understanding and supporting this stage.
- This plane parallels the second plane and is a calmer stage of development.
Developmental Goals
- Independence Progression:
- 1st Plane: Functional independence.
- 2nd Plane: Intellectual independence.
- 3rd Plane: Economic and emotional (identity) independence.
- 4th Plane: Social independence.
- Focus on vocation and contribution to society:
- Search for meaningful ways to interact with and contribute to the community.
- Refinement of personal responsibility to society and the natural world.
Key Characteristics
- Self-Awareness:
- More confident and less anxious about identity.
- Resilient and adaptable.
- Critical Thinking and Metacognition:
- Improved ability to analyze and reflect.
- Stronger sense of personal responsibility and awareness of one’s societal impact.
Questions Answered in the Fourth Plane
- Who am I? (Built upon in the 3rd Plane).
- How can I contribute to society?
- What is my role in the community?
Educational Needs
- Requires a new plan of education and prepared environment:
- Tailored to the needs of a fully developed adult.
- Supports the refinement of skills for societal contribution.
Outcome of the Fourth Plane
- Individual is fully an adult, no longer a social newborn.
- Achieves social independence and a clear sense of vocation.
- Cultivates responsibility to humankind and the natural world.
- Engages meaningfully with society as a confident, self-aware, and adaptable individual.
Quotes from lesson
- “Our method has been based on the fact that we have been guided by the manifestations of children at different phases of growth. Each of these may be considered a level or a plane. On each different level of life there are different needs and there are different manifestations.… With regard to the child, education should correspond to them, so that instead of dividing the schools into nursery, primary, secondary, and university, we should divide education in planes and each of these should correspond to the phase the developing individual goes through” – Maria Montessori (“The Four Planes of Education”)
- “It follows that the newborn child has to do a piece of formative work which corresponds in the psychological sphere to the one just done by the embryo in the physical sphere.” – Maria Montessori, The Absorbent Mind
- “Education between the ages of six to twelve is not a direct continuation of that which has gone before, though it is built upon that basis. Psychologically there is a decided change in personality, and we recognize that nature has made this a period for the acquisition of culture, just as the former was for the absorption of the environment.” – Maria Montessori, To Educate the Human Potential
- “Since it has been seen to be necessary to give so much to the child, let us give him a vision of the whole universe. The universe is an imposing reality, and an answer to all questions.” – Maria Montessori, To Educate the Human Potential
- “Until he is twelve-years old, nature ought to constitute the child’s primary interest. After twelve years we must develop in the child the feeling of society, which ought to contribute to more understanding among men and, as a result, more love. Let us develop admiration and understanding for work and for the life of man to this end” – Maria Montessori, From Childhood to Adolescence (p. 96, Schocken edition)
- “Success depends on self-confidence, on the awareness of one’s own talents and of the many possibilities of their adaptation. The awareness of one’s own usefulness, the feeling that one can help humanity in various ways, fills the heart with a noble confidence, with an almost religious dignity” – Maria Montessori, From Childhood to Adolescence
- “The essential reform is this: to put the adolescent on the road to achieving economic independence. We might call it a ‘school of experience in the elements of social life.” – Maria Montessori, From Childhood to Adolescence
- “The individual should be the man who knows how to make his own choice of action…he should be as a live spark and aware of the open gate to the potentialities of prospective human life and of his own possibilities and responsibilities. The aspiration of such a man cannot limit itself to personal advantage. The self becomes secondary. The tendency must be for the whole of humanity.” – Maria Montessori, “The Four Planes of Education” in Citizen of the World
- “All desire that humanity be joined by mutual understanding, but this does not come easily. To achieve this, we must rise a step further and attain a higher level of moral conscience and responsibility. To have attained it when one enters one’s own mission in social life, there must have been a long moral preparation. It is not merely by study and science that one can reach this level. All the good of all the ages must have been absorbed and surpassed.” – Maria Montessori, “The Four Planes of Education” in Citizen of the World
Memorable sentences/ideas/quotes
- “The work of the child is their own self-construction. The adult can best serve the child by assisting this work; they cannot force development.”
- “The essential reform is this: to put the adolescent on the road to achieving economic independence. We might call it a ‘school of experience in the elements of social life.” Maria Montessori, From Childhood to Adolescence
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