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Understanding piaget's stages of development

Learn about Piaget's four stages of cognitive development and how to apply them in your homeschool.
Lisa Thorsen
Written byLisa Thorsen
4 min read
Key takeaways
  • Understanding Piaget's four stages of cognitive development—sensorimotor, preoperational, concrete operational, and formal operational—helps homeschool parents tailor their teaching methods to their child's developmental level
  • For example, focus on hands-on activities for younger children and introduce abstract concepts like algebra only when they reach the formal operational stage, typically around age 12.

Piaget's Stages of Development outline how children's thinking evolves from birth to adolescence. It includes four key stages: sensorimotor, preoperational, concrete operational, and formal operational, each showing a different way of understanding the world.

According to the National Center for Education Statistics (NCES), approximately 3.3 million students were homeschooled in the United States as of 2023, representing roughly 6% of the school-age population. Research from the National Home Education Research Institute (NHERI) shows that homeschooled students typically score 15 to 25 percentile points higher than public school students on standardized academic achievement tests.

What are piaget's stages of development?

Swiss psychologist Jean Piaget believed kids think differently from adults. He identified four stages of cognitive development. Each stage builds on the last. For example, a toddler learns through their senses, while a teenager can deal with abstract ideas. Knowing these stages helps homeschool parents teach in ways that fit their child's thinking.

Sensorimotor and preoperational years

In the sensorimotor stage (birth to age 2), babies explore through their senses. Playing peek-a-boo helps them understand object permanence, which means things still exist even if they can't see them. Next is the preoperational stage (ages 2-7). Here, kids start to think symbolically but struggle with logic. They often see things only from their own perspective. For example, if you pour water from a short glass into a tall one, they might think there's more water because it looks taller. During this time, focus on imaginative play, reading aloud, and hands-on activities instead of abstract lessons.

Concrete operational stage

Around age 7, kids enter the concrete operational stage. This is when they start to think logically, but only about things they can see and touch. They grasp conservation, meaning they understand that the same amount of water is in both the tall and short glasses. They can also classify items and arrange them by size. For homeschoolers, this means using hands-on math tools and science experiments. Avoid abstract ideas like algebra, since kids in this stage can't process them just yet.

Formal operational stage

At about age 12, many kids reach the formal operational stage. They can think abstractly, form hypotheses, and explore various possibilities. Suddenly, algebra makes sense to them; 'x' can mean any number. Teenagers begin to tackle ethical issues and understand deeper meanings in language. Not every child hits this stage at age 12, and some adults may never fully develop this way of thinking. But for those who do, it opens up advanced math, philosophy, and scientific reasoning.

Practical applications for homeschoolers

Piaget's stages give you practical advice: don't rush. A 6-year-old who can memorize math facts may not really understand them yet. Similarly, pushing formal reading on a 4-year-old overlooks their need for play. Match what you teach to their development level. Use hands-on tools in elementary years. Save tough subjects for when they're ready. Remember, kids progress at their own pace.

The bottom line

Piaget's theory teaches us that kids aren’t just smaller adults—they think differently at each stage. For homeschoolers, this means meeting kids where they are cognitively, not just following a curriculum. Concrete operational kids need tools, not just explanations. Preoperational kids thrive on play and stories, not worksheets. When we teach in line with their development, learning flows naturally. If we push too hard, it leads to frustration for everyone involved.

Frequently Asked Questions

Lisa Thorsen
Written by
Lisa Thorsen

Co-founder, BetterSchool

Lisa is the co-founder of BetterSchool and a homeschool mom of three. BetterSchool administers the largest independent homeschool community in the country — over 350,000 families across all 50 states.

When COVID hit, Lisa and her husband pulled their children out of school and hit the road. Homeschooling wasn't the plan — it was a necessity. But somewhere along the way, the family fell in love with it: the time together, the ability to tailor lessons to each child's interests, learning at their own pace, the freedom to travel, eating healthy on their own schedule, and the countless other benefits that come with homeschooling.

As they traveled, Lisa kept discovering incredible hands-on learning experiences that most homeschool families had no way of finding. She built BetterSchool to make it easy for every family to find and book the experiences that make learning come alive.

Through her community, Lisa has helped hundreds of thousands of parents navigate homeschooling, while also helping local businesses find and serve the homeschool community. She is the former managing partner of a law firm focused on business law and mergers and acquisitions — BetterSchool is her second technology startup. She holds a J.D. from California Western School of Law and a B.A. from Penn State.

Table of Contents

  • What are piaget's stages of development?
  • Sensorimotor and preoperational years
  • Concrete operational stage
  • Formal operational stage
  • Practical applications for homeschoolers
  • The bottom line
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