Circles, Squares & Triangles
Made by Nienhuis Montessori · shipped by Heutink International (Netherlands) About the maker
An essential classroom resource, this geometric shapes set features three sliding wooden trays, each dedicated to circles, squares, and triangles in vibrant primary colors. The ingenious compartmented design allows children to explore shape discrimination, color matching, and classification skills through hands-on manipulation, supporting the development of visual perception and mathematical thinking essential to the Montessori sensorial curriculum.
“The hands are the instruments of man's intelligence.”
The Circles, Squares & Triangles set embodies the Montessori principle of isolating difficulty through its three distinct sliding wooden trays. Each tray presents one geometric form exclusively, allowing the child to focus completely on distinguishing circles from non-circles, squares from non-squares, or triangles from non-triangles. The vibrant primary colors within each compartmented tray introduce a secondary classification system without overwhelming the primary shape discrimination work.
- Visual discrimination between circles, squares, and triangles through repeated sorting
- Fine motor control through precise placement of shapes into compartmented sections
- Classification skills by grouping identical shapes and colors together
- Mathematical vocabulary development: circle, square, triangle, round, corner, side
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This methodical separation of concepts, first by shape across trays, then by color within trays, reflects Maria Montessori's observation that young children build understanding through repeated manipulation of concrete materials. The sliding wooden trays themselves invite purposeful movement, engaging the hand as the instrument of the mind while the child sorts and classifies these fundamental geometric forms. By providing multiple examples of circles, squares, and triangles rather than single specimens, the material helps children abstract the essential qualities that define each shape category.
How to present it
Follow the Montessori method of presentation for optimal child development.
Place one sliding tray on a work mat, starting with circles. Ensure all shapes are mixed within the tray's main compartment. Sit to the child's right if you are right-handed.
- 1
Slide open the tray slowly, revealing the compartmented sections and mixed shapes
The sliding motion itself captures attention and signals the beginning of purposeful work - 2
Select one circle, trace its edge with two fingers, then place it in an empty compartment
Tracing reinforces the shape's defining characteristic, no corners or straight edges - 3
Continue sorting all circles by color into their respective compartments
Work systematically from left to right, establishing an organized approach - 4
Once complete, invite the child to close and reopen the tray, mixing shapes to repeat
Children often request immediate repetition when the work matches their developmental need
Every Child Is a Little Creator
Heritage
Since 1929
In classrooms
Around the world
European brands
Nienhuis, GAM, Educo
AMI approved
To the association standard
Circles, Squares & Triangles
