In the Montessori curriculum, the 3D Object Fitting Exercise is a specific set of activities designed for infants and toddlers (typically 10 to 18 months). It bridges the gap between simple “dropping” boxes and more complex puzzles.
This exercise focuses on the relationship between a three-dimensional object and its matching three-dimensional cavity. Unlike a puzzle where the piece sits on top of a board, these objects fit deeply into a matching base, providing a strong tactile sense of “wholeness.”
R608
In stock
In stock
Purchase this item and get 4 Beads - a worth of R12Spatial Relationship: The Child learns that for an object to fit, the volume of the object must match the volume of the hole.
Proprioceptive Feedback: Pushing the object into a snug “home” provides feedback to the joints and muscles, helping the child understand how much force is needed.
Visual Discrimination of Form: The Child must distinguish between the “roundness” of a sphere and the “edges” of a cube.
A standard 3D Object Fitting set consists of:
The Egg in Cup: (Easiest) The egg is curved and fits into the cup at almost any angle.
The Sphere in Bowl: Similar to the egg, but focuses on a perfect round shape.
The Cube in Box: (Intermediate) Introduces corners; the child must align the square faces of the cube with the square opening.
Presentation: The Guide places one block (e.g., the Egg in Cup) in front of the child.
The Removal: The Guide lifts the egg out, and places it on the mat.
The Exploration: The Guide may run their finger around the rim of the cup and the surface of the egg to show they match.
The Replacement: The egg is placed back into the cup.
Independence: The Child is invited to repeat the process. Once one is mastered, a second block is introduced to allow for a choice.
The 3D Object Fitting exercise is easier than a 2D puzzle because:
The “Home” is deep: The object stays put once it is even partially in the hole.
The Shape is Graspable: The child can feel the entire 3D form, which provides more sensory information than a flat puzzle piece.
Isolation: Usually, these are presented as individual blocks first, so the child isn’t distracted by other holes or shapes.
Contents and Dimensions of the 3D Object Fitting Exercise
Features – All the shapes are manufactured in solid Beech wood
One of the attractions to the Montessori Method is the extensive use of wood.
We use several types of wood, sourced from renewable sources, in the production of our Montessori Materials.
We ensure that the coatings and inks used are not only eco-friendly, but also non-toxic.
Our wooden products are manufactured by responsible partner factories both locally and abroad and ensure that fair labour practices are adopted.
Care instructions for Childrens House Wooden Materials:
Order R1000 worth of items to qualify for free shipping to your door anywhere in South Africa.
Transit times depend on your location:
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We offer free delivery to the USA:
Should you require further information about shipping charges, please feel free to contact us at info@childrenshouse.co.za
Further Reading and Resources
| Weight | 600 kg |
|---|---|
| Dimensions | 20.5 × 25.5 × 6.5 cm |
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The weighting on the shapes are really good, which ensures the the child concentrates on the task ahead. Very good activity.
The tray is so beautifully made it is very good value for money,
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2 Beads
1 Bead
1 Bead
3 Beads
Rae Scott (verified owner) –
The weighting on the shapes are really good, which ensures the the child concentrates on the task ahead. Very good activity.
Philippa vd Bergh (verified owner) –
The tray is so beautifully made it is very good value for money,