An essential text from Maria Montessori exploring the psychological principles underlying geometry education in the Montessori Method. This soft cover edition, Volume 16 of The Montessori Series, provides educators with deep insights into how children develop geometric understanding through sensorial exploration and abstraction. Published by Montessori-Pierson, this foundational work guides teachers in presenting geometry materials and concepts to support the child's natural mathematical mind.
“The senses, being explorers of the world, open the way to knowledge.”
Psychogeometry reveals Maria Montessori's discovery that geometric understanding emerges from the child's sensorial experiences with concrete materials. This soft cover volume illuminates how the Sensorial materials prepare the mathematical mind by isolating geometric properties, the Pink Tower isolates dimension, the Brown Stair isolates width, the Red Rods isolate length.
Through Psychogeometry's insights, educators understand why children must physically manipulate these materials before abstracting geometric concepts. The text explains how each geometric cabinet inset, each constructive triangle, each geometric solid serves a precise developmental purpose. Montessori recognized that children possess an innate geometric sense that unfolds through ordered exploration. Psychogeometry guides teachers in recognizing when a child has internalized sensorial impressions and is ready for nomenclature, classification, and abstract geometric reasoning. This foundational text transforms how educators view every sphere, cube, and prism in the classroom, not as teaching tools, but as keys to the child's mathematical intelligence.


Follow the Montessori method of presentation for optimal child development.
Create a quiet reading space with notebook for observations. Have Sensorial and geometry materials nearby for reference.
Read chapters on sensorial preparation, noting connections to specific classroom materials
Study Montessori's observations about children's geometric discoveries
Review the progression from concrete to abstract geometric understanding
Examine the role of language in geometric abstraction
Apply insights to observe children working with geometric materials

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Deepens understanding of how children develop geometric thinking through concrete to abstract progression.
Provides theoretical foundation for presenting geometry materials in logical developmental sequence.
Read Psychogeometry alongside The Discovery of the Child for complete understanding of sensorial-mathematical connections
Everything you need to know about this material.
Contact Our ExpertsWhile the book discusses methods for teaching children ages 3-6, it is actually written for adult educators, teachers, and parents who want to understand Maria Montessori's approach to geometry education in the early childhood classroom.
While prior Montessori knowledge is helpful, the book is written to be accessible to anyone interested in understanding how children develop geometric thinking. It explains the psychological principles behind the Montessori approach to geometry education.
The book explores how children naturally develop geometric understanding through sensorial exploration, the progression from concrete to abstract thinking, the psychological foundations of mathematical learning, and practical guidance for presenting geometry materials in the classroom.
Psychogeometry combines both theoretical insights into child psychology and practical applications for the classroom. It provides the philosophical foundation while also offering guidance on how to present geometric concepts and materials to young children.
As Volume 16 of The Montessori Series, this book specifically focuses on the geometric aspect of the mathematical mind. It works alongside other mathematics albums and guides, providing deeper psychological understanding of why and how Montessori geometry materials work.
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