Large Number Cards 1-9000: Plastic
Hands-on to minds-on, these color-coded plastic number cards introduce children to the decimal system and place value concepts from units to thousands. The durable cards feature clear numerals in Montessori-standard colors (green for units, blue for tens, red for hundreds, green for thousands), where children physically build and decompose numbers up to 9999. Essential for developing concrete understanding of mathematical hierarchy and number composition.
“Children display a universal love of mathematics, which is par excellence the science of precision, order, and intelligence.”
The Large Number Cards 1-9000 represent Maria Montessori's insight that children possess mathematical minds capable of understanding complex numerical relationships when given concrete representations. These color-coded plastic cards transform abstract place value into a tangible experience - green units, blue tens, red hundreds, and green thousands create a visual hierarchy that matches the child's need for order and classification.
- Understanding place value through color-coded hierarchy (units, tens, hundreds, thousands)
- Building and reading numbers up to 9999 independently
- Recognizing patterns in the decimal system through card manipulation
- Developing visual memory for number symbols and their quantities
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By physically overlaying the cards to build numbers like 3,486, children discover how our decimal system works through their own manipulation and exploration. The plastic construction ensures countless repetitions as children aged 3-6 satisfy their sensitive period for number by building, reading, and decomposing four-digit quantities. Each colored card becomes a concrete symbol that bridges the child's sensorial experiences with mathematical abstraction, allowing them to literally hold thousands in their hands before abstracting to mental arithmetic.
How to present it
Follow the Montessori method of presentation for optimal child development.
Arrange cards in columns by place value on a mat: green units (1-9) on far right, blue tens (10-90) next, red hundreds (100-900), then green thousands (1000-9000) on far left
- 1
Introduce one category at a time, starting with units. Show how to read '1', '2', etc.
Let the child trace the numerals with their finger - 2
Progress to tens, demonstrating how '10' has a zero to show no units
Emphasize the color change from green to blue - 3
Build two-digit numbers by overlaying tens and units: place '20' then slide '3' on top to make '23'
Show the overlapping slowly so children see the transformation - 4
Continue pattern with hundreds (red) and thousands (green), building increasingly complex numbers
Let children choose which numbers to build - 5
Play 'make the number' - say a number like '2,547' and child builds it with cards
Start with smaller numbers and increase complexity gradually
Every Child Is a Little Creator
Heritage
Since 1929
Brands used by
schools worldwide
European brands
AMI
Endorsed
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