✦ LIBER ✦
The Amazing Arithmos. visual learning aid for basic mathematics, 2 distinctive number patterns: front-face hundred board (black numerals), reverse-face multiplication matrix (red numerals), and basic instructions books (English & Spanish)
✍ Scribed by Review by: Monica Petersen and Alon Stevens
- Book ID
- 125106952
- Publisher
- National Council of Teachers of Mathematics
- Year
- 1992
- Weight
- 335 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0004-136X
- DOI
- 10.2307/41195331
No coin nor oath required. For personal study only.