Pythagoras Board Activity Set
Made by Nienhuis Montessori · shipped by Heutink International (Netherlands) About the maker
Exercise cards with divider tabs in a wooden box, extending the pythagoras board. The board lays out the multiplication tables as a square, and its whole argument is visual: the diagonal, the symmetry either side of it, the way the same product turns up twice. None of that is noticed by a child who uses the board once. These cards give the reasons to keep coming back until the pattern is seen rather than pointed out. Pythagoras board sold separately. Wood and laminated cardstock, for ages 3 to 12.
“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 Pythagoras Board Activity Set addresses the elementary child's need to understand the structure of our decimal system through multiplication.
- Master multiplication facts from 1×1 to 10×10 through hands-on arrangement
- Discover commutative property by observing identical products in different positions
- Recognize number patterns including squares and multiplication families
- Develop systematic thinking through organized card placement
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The wooden storage box with numbered divider cards creates an organized environment where children physically arrange multiplication facts, making abstract concepts tangible. Each progressive exercise card in the Pythagoras Board moves from concrete grid work to pattern recognition, allowing children to discover multiplication relationships independently. The material's systematic presentation matches the elementary child's reasoning mind, which seeks to understand the 'why' behind mathematical operations. By manipulating the numbered cards within the wooden compartments, children internalize multiplication tables not through rote memorization but through pattern discovery. The Pythagoras Board's visual grid format reveals the symmetry in multiplication facts, preparing the foundation for later work with squares, factors, and algebraic concepts.
How to present it
Follow the Montessori method of presentation for optimal child development.
Place the wooden storage box on a mat. Remove all numbered cards and sort them by value. Set out the first exercise card showing the empty multiplication grid.
- 1
Begin with the ones family, placing cards 1-10 in the first row
Let the child discover that these match the numbers across the top - 2
Continue with twos family (2,4,6,8,10,12,14,16,18,20), observing skip counting
Point out patterns but let the child place cards independently - 3
Fill subsequent rows, noticing when numbers repeat in different positions
Ask 'Have you placed this number before? Where?' - 4
Complete the entire grid, then use exercise cards for pattern activities
Progress only when the child shows mastery of the current level
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
Pythagoras Board Activity Set
