This Quantity Splitting Box engages children in mathematical exploration through hands-on sorting activities. The two-tier design features a sliding lid compartment for storing colorful glass marbles and divided sections below for distributing quantities, supporting early number sense and one-to-one correspondence. The smooth beechwood construction and precision finger joints ensure durability for repeated classroom use.
“Children display a universal love of mathematics, which is par excellence the science of precision, order, and intelligence.”— Maria MontessoriThe Discovery of the Child
The Quantity Splitting Box embodies Maria Montessori's principle of concrete mathematical experiences preceding abstract understanding. In the Sensorial area, this material serves as an indirect preparation for mathematics, allowing children to physically manipulate quantities before formal number work begins. The material respects the child's need for order and precision through its compartmented design, while the beautiful glass marbles appeal to the child's aesthetic sense. This bridges sensorial exploration with mathematical concepts, following Montessori's observation that children construct mathematical understanding through repeated handling of concrete materials. The two-tier design supports the child's natural tendency toward classification and distribution, fundamental skills for later arithmetic operations.

Move slowly and deliberately to model careful handling
Use exaggerated, isolated finger movements to highlight the motion
Pause after placing to allow visual impression of the quantity
Work left to right to reinforce reading preparation
Count silently to avoid premature number association
Move slowly and deliberately to model careful handling
Use exaggerated, isolated finger movements to highlight the motion
Pause after placing to allow visual impression of the quantity
Work left to right to reinforce reading preparation
Count silently to avoid premature number association

Heritage
Since 1929

Trusted by
Schools Worldwide

Handcrafted
in Europe

AMI
Endorsed

Splitting quantities develops understanding of division, equal distribution, and number relationships through concrete manipulation.
Precise marble placement and sliding lid operation refine pincer grip and hand-eye coordination.
Sorting colored marbles into compartments strengthens visual perception and classification skills.
The systematic process of distributing marbles equally requires sustained focus and attention to detail.
Observe whether the child distributes systematically or randomly to assess readiness for number work
Store extra marbles separately to maintain consistent quantity for initial presentations
Use this as assessment for readiness for Mathematics area materials like Spindle Boxes
“Present this material after the child has mastered simpler sorting activities like Color Tablets”
Everything you need to know about this material.
Contact Our ExpertsThe Quantity Splitting Box introduces one-to-one correspondence, quantity distribution, early division concepts, and number sense. Children learn to split quantities equally, compare amounts, and understand the relationship between wholes and parts through hands-on manipulation.
The box typically includes 20-30 colored glass marbles stored in the sliding lid compartment. The exact quantity allows children to practice splitting numbers into equal groups of 2, 3, 4, 5, or more, supporting various mathematical explorations.
While classified as Sensorial, the Quantity Splitting Box bridges sensorial and mathematical learning. Unlike abstract counting materials, it provides concrete, visual representation of division through physical distribution, making it ideal for introducing mathematical concepts before formal math materials.
Children begin by freely exploring marble distribution, then progress to equal sorting (dividing marbles evenly), pattern creation, and eventually understanding remainders. Extensions include skip counting, introduction to fractions, and preparation for division operations.
Yes, when used under appropriate supervision. The glass marbles are specifically chosen for their weight and sensorial quality. Always ensure children who still mouth objects are closely supervised, and consider the individual child's readiness for materials with small parts.
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