- AMI approved
- Unequalled beauty
- Precise control of error
- Exact isolation of one quality
- Perfect interrelations
Arithmetic Signs Box
A collection of arithmetic signs ( + – x ÷ = , etc.) and number cards for use with the various mathematics materials. Includes beechwood box for storage.
Brand | Nienhuis Montessori |
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Minimum age | 5 years |
Certification | AMI approved |
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