- AMI approved
- Unequalled beauty
- Precise control of error
- Exact isolation of one quality
- Perfect interrelations
Patterns For Square Root
These patterns serve as guides when extracting the square root on the Algebraic Peg Board. The material consists of 4 plastic cards with silk-screened square root patterns in the 3 hierarchical colors.
Brand | Nienhuis Montessori |
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Minimum age | 8 years |
Certification | AMI approved |
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