Tens Boards: US Version
Made by Nienhuis Montessori · shipped by Heutink International (Netherlands) About the maker
The Tens Boards introduce children to the decimal system through hands-on manipulation of sliding number panels that reveal sequential numbers from 10 to 99. This essential Montessori mathematics material builds concrete understanding of two-digit numbers and place value through visual and tactile exploration. The wooden construction and precision-printed numbers create a durable learning tool that supports the transition from physical to theoretical mathematical thinking.
“Free the child's potential, and you will transform him into the world.”
The Tens Boards fulfill the young child's developmental need to understand quantity beyond single digits by providing sliding panels that physically reveal two-digit numbers. When children manipulate these wooden boards to uncover numbers from 10 to 99, they experience the decimal system through movement and visual discovery.
- Recognition and reading of two-digit numbers from 10 to 99
- Understanding of place value through physical manipulation
- Sequential ordering and pattern recognition in the decimal system
- Visual discrimination between tens and units places
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The precision-printed numbers on each panel create a consistent visual reference that helps children recognize patterns in our base-ten system. By sliding the panels to form different combinations, children physically construct two-digit numbers, making abstract place value concepts tangible. The Tens Boards bridge the gap between counting with golden beads and reading written numerals independently. This sequential presentation from 10 to 99 respects the child's need for order while building confidence with larger quantities. The wooden construction ensures hundreds of sliding movements remain smooth and precise, allowing children to focus on numerical relationships rather than managing difficult mechanisms.
How to present it
Follow the Montessori method of presentation for optimal child development.
Place the Tens Boards on a table mat with the first board showing 10-19 and the second board nearby. Ensure all sliding panels move smoothly and numbers are clearly visible.
- 1
Begin with the first board set to show '10'. Point to each digit and name: 'One ten and zero units makes ten.'
Use consistent language: 'tens' and 'units' rather than mixing terms - 2
Slide the units panel to reveal '11'. Say: 'One ten and one unit makes eleven.'
Move slowly so the child sees the number change - 3
Continue sliding to reveal each number sequentially, naming each: '12, 13, 14...'
Pause if the child wants to slide the panel themselves - 4
At '19', demonstrate moving to the second board: 'Now we have two tens.'
Point to the '2' in '20' to emphasize the tens place - 5
Continue through all boards systematically, allowing the child to predict the next number
Let the child take over sliding when they show readiness
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
Tens Boards: US Version
