Maria Montessori’s Planes of Development: Stages, Skills, and Parenting Tips

Maria Montessori figured out something big - kids don’t just grow; they actually evolve. Each stage of childhood comes with its own set of skills, quirks, and, let’s be real, parenting challenges.


She called these the Planes of Development, and they help explain why your toddler is a nonstop whirlwind while your teenager is basically nocturnal.


If you’re a parent, knowing these stages can make life a whole lot easier. You’ll understand what’s going on in that little (or not-so-little) brain and how to support them every step of the way.

Children painting Easter eggs.

Origins of Development Stage Theory

Big thinkers have been trying to crack the code of childhood development for ages. Turns out, kids don’t just grow taller - they go through different stages of learning, thinking, and feeling.


Jean Piaget, a Swiss psychologist, mapped out four stages of cognitive development, showing how kids' brains level up as they age. Erik Erikson took a different route, breaking life into eight emotional and social challenges.


Maria Montessori took inspiration from both but added her own twist. After closely observing children, she came up with the Four Planes of Development.


In short, that’s a framework that highlights how education should go hand-in-hand with kids. Unlike other theories, her approach connects the dots between learning, emotions, and real-world experiences.

Child playing with a color sorting Montessori peg game.

What are Maria Montessori’s Planes of Development?

Maria Montessori didn’t see childhood as a straight path from baby to adult. Instead, she saw it as a journey through four big stages. Think of it like leveling up in a game - each stage builds on the last, but the rules keep changing.

  • Infancy (0-6 years): The absorbent mind phase - kids are basically little sponges, soaking up everything around them.

  • Childhood (6-12 years): The conscious explorer phase - logic kicks in, and they start questioning everything (get ready for “but why?” a thousand times a day).

  • Adolescence (12-18 years): The social reformer phase - teens crave independence and want to change the world (or at least their curfew).

  • Maturity (18-24 years): The young adult phase - figuring out life, career, and where they fit in the big picture.

Characteristics of the Planes of Development

Each stage of childhood comes with its own quirks, learning styles, and, let’s be honest - unique parenting challenges. By understanding these stages, parents and educators can give kids the right kind of support at the right time.


To be fair, this fuels their curiosity, guides their growth, and makes sure they reach their full potential (without too many tantrums along the way).

Mother and son playing with a classic Montessori sorting game.

Explaining Each Development Plan

So, we already said that there are four planes of development, but what’s the deal with them? And what happens in each stage?


Let’s find out.

Infancy (0-6 years): The Absorbent Mind

Welcome to the baby-toddler-little kid phase - where curiosity is endless, energy is boundless, and silence usually means trouble. Montessori called this the “absorbent mind” stage because kids here soak up everything around them like tiny, walking sponges (yes, including that word you didn’t mean to say).

Baby playing with wooden Montessori stacking blocks and rings.

Timeframe

From birth to age 6 - aka, the years of constant movement, messy hands, and learning at lightning speed.

Key Skills Developed

Talking, walking, figuring out how things work, making friends, and slowly mastering the art of independence.

Sensitivities Observed

Kids in this stage are extra sensitive to order, language, movement, and sensory experiences (which explains why they demand the same bedtime story every single night).

Educational Focus

Create a safe, engaging space, encourage movement, introduce lots of language, and let them explore the world on their own terms. You can also practice mindfulness and Montessori for the best results.

Core Interests

Touching everything, running everywhere, asking “Why?” on repeat, and watching you like a hawk.

Common Challenges

Big emotions, separation anxiety, and the occasional meltdown because their socks “feel weird.”

Childhood (6-12 years): The Conscious Explorer

Welcome to the “why?” stage - where kids trade in their sponge-like brains for logic, reasoning, and an unstoppable curiosity about everything. This is when they start connecting the dots, questioning the rules, and testing their independence (and your patience).

Boy and a girl playing with wooden Montessori puzzles in a classroom.

Timeframe

Ages 6 to 12 - also known as the golden years of boundless curiosity, endless questions, and a growing need for independence. It’s a good idea to study the science behind Montessori toys for this one.

Key Skills Developed

Thinking critically, understanding right from wrong, making (and keeping) friends, problem-solving, and refining their physical coordination.

Sensitivities Observed

Kids in this stage are extra tuned in to morality, social relationships, creativity, and the joy of discovering how things work (which might lead to some questionable “science experiments” at home).

Educational Focus

Encourage exploration, problem-solving, and big-picture thinking. Support their social and emotional development while letting their creativity and imagination run wild.

Core Interests

Learning new things, making friends, figuring out how the world works, and maybe starting their first collection (rocks, stickers, random shiny objects - you name it).

Common Challenges

Peer pressure, school stress, and the struggle of figuring out who they are - all while trying to fit in.

Adolescence (12-18 years): The Social Reformer

Adolescence - oh boy, that’s when it feels like they suddenly know everything and have an opinion on everything, especially about your rules, right?


It’s like they go from being your sweet little kid to someone you barely recognize, all in the blink of an eye. Physically, emotionally, socially - they’re changing so fast.


Montessori called this stage the “social reformer” because teens are all about finding their purpose, pushing boundaries, and making sure everyone knows they want to do things their way. It’s like they’re figuring out who they are - and, well, sometimes, it feels like they're doing it right in front of you.

Mother and daughter building a wooden marble run maze in the living room.

Timeframe

Ages 12 to 18 - think of it as the rollercoaster ride from childhood to adulthood, full of ups, downs, and loop-de-loops.

Key Skills Developed

Abstract thinking (hello, deep philosophical conversations), building a personal identity, forming moral beliefs, enhancing social skills, and finally figuring out how to adult (kind of).

Sensitivities Observed

Teens are hypersensitive to social justice, relationships with their peers, figuring out who they are, and grappling with big ideas. Spoiler: this means they’ll argue with you over just about everything.

Educational Focus

This is a time for self-discovery, critical thinking, and deep conversations. Support their social and emotional growth while encouraging them to take responsibility for their actions and make a positive impact.

Core Interests

Finding their place in the world, figuring out their identity, forming strong friendships (or maybe some rebellious cliques), and questioning the system.

Common Challenges

Identity crises, peer pressure, academic stress, and, of course, the emotional rollercoaster that comes with being a teenager.

Maturity (18-24 years): The Young Adult

Ah, adulthood - where the world suddenly expects you to have it all figured out. No pressure, right?


This stage is all about finding your place in the world, building those real, meaningful relationships, and figuring out how to contribute in a way that matters. It's not just about "growing up" it's about continuing to grow into yourself.

Beautiful girl posing while holding wooden tray with colors, and a brush.

Timeframe

Ages 18 to 24 - basically, the first few years of “adulting,” where you’re still trying to get the hang of it all.

Key Skills Developed

Independence (finally!), critical thinking, problem-solving, social skills, and a deeper sense of purpose. You’re figuring out how to balance life, work, and maybe even figuring out why your parents were always so right about everything.

Sensitivities Observed

You’re suddenly super sensitive to things like love and intimacy, fairness (especially when you’re stuck doing all the chores), truth, knowledge, and the aesthetics of your latest self-expression project (think: your new apartment or tattoo).

Educational Focus

This is the time for figuring out your purpose, continuing your education (whether that’s a formal degree or just learning what adulting really means), and finding ways to make your mark on the world.

Core Interests

Chasing your passions, building real relationships, and finding ways to make a difference, even if it’s just starting with figuring out how to cook a decent meal without burning it.

Common Challenges

The transition from “teenager” to “adult” is harder than it sounds - finding purpose, dealing with responsibility, and trying to keep everything in control. It’s a lot of trial and error, but hey, it’s all part of the ride.

Why Do The Stages of Development Matter?

These stages of development matter because understanding them is like having a roadmap for how to support your child at every twist and turn. Knowing what to expect helps parents and educators create the best environments for kids to thrive.


For example, during infancy, it’s all about creating a safe space where they can explore and move freely (because, let’s be honest, they’re going to get into everything).


As they hit childhood, the goal shifts to giving them opportunities to discover on their own, with materials that encourage independence and curiosity.

Little girl in a pink shirt playing building a tower with Jenga wooden blocks.

The Role of Parents in Each Plane of Development

Parents, you're the backbone when it comes to helping your kids through each stage of development. It's all about creating a safe space, guiding them, and helping them build the skills they’ll need down the road.

1. Infancy

In those early years, the main thing is building trust. If you respond to their needs and offer a mix of physical and emotional support, they’ll feel safe and secure. At this stage, it’s a good idea to practice fine motor skills with your child, as this is essential for future progress. 

2. Childhood

As they get older, it’s time to let them explore more on their own. Set up an environment where they have lots of ways to engage, discover, and become more independent. It’s like giving them the freedom to figure things out, but with a bit of guidance.

3. Adolescence

The teenage years are a bit of a whirlwind, right? They’re trying to figure out who they are and what they want. Be there for them - guide them, but also give them space to explore and make their own choices.

4. Maturity

As they transition into adulthood, you’re still in the mix, but in a different way. It’s all about supporting their independence, encouraging them to chase their goals, and letting them grow into their own person.

Daughters painting their fathers face using paint brushes.

How Planes of Development Relate to Modern Education

Montessori’s ideas are actually a big deal in education these days. Many schools are using her principles to create learning spaces that fit where kids are at each stage of development.


Her approach is all about setting up environments that make sense for kids at every age. It’s about giving them the right tools to explore and learn through hands-on experiences so they can really dig into their curiosity.

  • Free Delivery

    Over $80
  • Easy Returns

    No questions asked
  • Unbeatable Warranty

    1-year ++ warranty
  • Secure Checkout
    World’s most secure payment method