This Teen Bead Box contains individual glass bead bars from 10 to 19, essential for introducing the decimal system and teen numbers in Montessori mathematics. The wooden storage box features a sliding lid and organized compartments, keeping the delicate glass bead bars secure and accessible for repeated practice with number composition and linear counting exercises.
“The greatest sign of success for a teacher is to be able to say, 'The children are now working as if I did not exist.'”- Maria MontessoriThe Absorbent Mind
The Teen Bead Box embodies Maria Montessori's principle of concrete to abstract learning, where children physically manipulate beautiful glass beads to understand the composition of teen numbers. This material bridges the critical gap between single-digit numbers and the decimal system, allowing the child to see and feel that teen numbers are composed of a complete ten plus units. The sensorial experience of handling the smooth glass beads engages multiple senses, creating neural pathways that support mathematical understanding. Through repeated exploration, children develop what Montessori called 'materialized abstractions' - concrete experiences that later transform into abstract mathematical thinking. The organized presentation in compartments respects the child's need for order and supports their mathematical mind's natural tendency to classify and categorize.

Handle the beads gently to model careful movement
Emphasize the continuation from ten to eleven
Allow the child time to make the connection
Some children benefit from starting at 1 and counting all the way to the teen number
Start with smaller numbers like 11-13 before progressing
Handle the beads gently to model careful movement
Emphasize the continuation from ten to eleven
Allow the child time to make the connection
Some children benefit from starting at 1 and counting all the way to the teen number
Start with smaller numbers like 11-13 before progressing

Heritage
Since 1929

Brands used by
schools worldwide

European brands

AMI
Endorsed

Introduces teen numbers through concrete manipulation, bridging the gap between units and the decimal system.
Glass beads provide weight and texture feedback, reinforcing quantity concepts through multiple senses.
Working with ordered bead bars develops understanding of number sequences and mathematical patterns.
Handling individual bead bars refines pincer grip and careful movement necessary for later writing.
Always count starting from the ten bead to reinforce the decimal system structure
Store the box at child's eye level to encourage independent selection and practice
Observe which teen numbers the child gravitates toward - this indicates their comfort level
“Present this material only after solid understanding of quantities 1-10 and recognition of numeral 10”
Everything you need to know about this material.
Contact Our ExpertsThe Teen Bead Box includes individual glass bead bars representing quantities from 10 to 19, organized in a wooden storage box with a sliding lid and compartments. Each bead bar is color-coded according to Montessori standards, with the ten-bar being golden and unit beads following the traditional color sequence.
This material provides a concrete, visual representation of teen numbers by combining a golden ten-bar with colored unit bars (1-9). Children physically see and handle that 13 equals one ten-bar plus three unit beads, making the abstract concept of place value tangible and memorable through sensorial experience.
Children should be familiar with quantities 1-10 and have experience with the colored bead stairs. They should also have practiced one-to-one correspondence and be able to count to at least 10. Prior work with the number rods and sandpaper numerals helps prepare children for success with teen beads.
Children can practice linear counting from 10-19, compose teen numbers by combining ten-bars with units, match bead quantities to number cards, perform simple addition with teens, and explore patterns in our number system. The material also supports skip counting and early place value understanding.
Glass beads provide superior sensorial feedback through their weight, temperature, and smooth texture. The quality of glass beads encourages careful handling and respect for materials while offering clear visual distinction between quantities. This authentic Montessori approach enhances concentration and precision in mathematical work.
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