Number Line Extensions Level 9-12
Made by Nienhuis Montessori · shipped by Heutink International (Netherlands) About the maker
Number line extensions for nine to twelve, taking the line into fractional parts and decimals. By this age a child has a mental number line already, built from years of counting, and the work is to force decimals onto it: the gap between nought point one and nought point two is real and has to be given a place, and a line is the only way to show it that does not require the child to trust an explanation. Durable plastic with rounded corners. In English.
“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.'”
The Number Line Extensions Level 9-12 addresses the child's developmental need to understand number relationships beyond simple counting.
- Recognition and sequencing of numbers 0-100 through physical arrangement
- Understanding of number patterns and relationships within decades
- Development of fine motor control through precise domino placement
- Internalization of number continuum through kinetic visualization
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By presenting 0-100 as physical plastic tiles in domino formation, this material bridges the gap between concrete manipulation and abstract number comprehension. The cascading domino arrangement capitalizes on children's fascination with cause-and-effect, transforming number sequence learning into a dynamic experience. When children set up these plastic tiles and trigger the cascade, they witness the mathematical continuum as a physical phenomenon. This kinetic representation helps children internalize that numbers follow an unbreakable sequence - each tile must fall in order, just as each number follows its predecessor. The three-dimensional tiles invite repeated exploration, allowing children to physically trace from 0 to 100 while building muscle memory of number progression. Through arranging and rearranging these dominoes, children discover patterns within decades and develop spatial understanding of how our number system builds systematically from units to tens to hundreds.
How to present it
Follow the Montessori method of presentation for optimal child development.
Clear a long, flat surface. Lay out the plastic number tiles in numerical order as reference. Demonstrate careful tile placement with appropriate spacing for domino effect.
- 1
Invite child to arrange tiles 0-10 in standing position, maintaining domino spacing
Start with straight lines before attempting curves or patterns - 2
Guide placement of tiles 11-20, encouraging observation of digit patterns
Point out how the tens digit stays constant within each decade - 3
Continue building in decade segments, allowing child to predict next numbers
Let child discover the pattern rather than explaining it - 4
Once complete, child gently pushes first tile to trigger cascade
Build anticipation by counting down before the push - 5
Trace finger along fallen tiles from 0-100, naming numbers
Move slowly enough for child to process each number
Every Child Is a Little Creator
Heritage
Since 1929
In classrooms
Around the world
European brands
Nienhuis, GAM, Educo
Number Line Extensions Level 9-12
