Large Wooden Montessori 3D Geometric Solids Shapes set of 10
- Regular price
- $68.00 AUD
- Regular price
- Sale price
- $68.00 AUD
- Unit price
The Montessori Geometric Solids
Purpose and Presentation
The Montessori Geometric Solids is arguably one of the most fun and fascinating of all the sensorial materials. These appealing three-dimensional shapes really beckon children to explore them.
What are the Geometric Solids in Montessori?
The Montessori Geometric Solids material is a set of 10 wooden 3-D shapes that are sanded smooth and painted blue. They are housed in a wooden box along with stands for the solids that may roll.
For example, when a child works with the square-based pyramid, they will see that the sides are made up of 4 triangles and the base consists of 1 square.
The shapes included in the material:
- rectangular prism
- square-based pyramid
- triangular-based prism
- triangular prism
Dimensions 5.5cm x 15cm x 21cm
This is great preparation for future geometry and trigonometry work, as hands-on exploration of three-dimensional shapes is helpful for gaining a deeper understanding of concepts like angles, planes, and trigonometric functions.
While this material is a preparation for the complicated math work that lies ahead, the Geometric Solids are presented to a child in a simple and fun way – and without any advanced mathematical jargon.
After all, this is a sensorial material and not a math material.
At the time this activity is presented, during the second year of a Montessori primary program, a child may have already worked with some of the shapes during language arts activities , however, that is not always the case.
Children will work with these geometric shapes again during the elementary years when they learn more in-depth physical science and geometry.
Montessori geometric shapes material
While some Montessori sensorial materials are difficult to find for purchase, the Geometric are not, however finding a well-made set can be a challenge.
Purpose of the Montessori Geometric Solids
- development of Stereognostic Sense
- pre-geometry work
control of Error
Points of interest
- the smoothness of the sold shapes
- the different shapes
- that some of the solids roll and some don't
How to present the Montessori Geometric Solids lesson
Note: This lesson should be presented on a large floor mat. If the child is not ready to learn all of the names of the geometric shapes, it is fine to only introduce the ones with simple names; cylinder, sphere, cone, and cube.
A 3 period vocabulary lesson should accompany this activity.
- Carry the box of Geometric Solids to the work mat and place them in a row in the order you plan on introducing them, from left to right.
- Explain to the child that you will be exploring how each solid feels.
- Pick up the shape to the far left and either look away or close your eyes.
- touch the shape on all sides with both hands, exploring it fully.
- Explain to the child that you are now going to explore how the shapes moves.
- Place the shape down on the mat and slide it and roll it on all sides. Watch how it rolls or tumbles.
- Place the shape back in the row and continue with these 2 steps for all 10 solids.
- Invite the child to preform the activity.
Geometric Solids extension activities
Sorting the Montessori geometric shapes
Have the child sort the shapes by how they feel and/or how they move. For example, the child can place all the shapes that roll together and all the shapes that slide together.