Arithmetical abstractions—progress toward maturity of concepts under differing programs of instruction

✍ Scribed by WILLIAM A. BROWNELL

• Book ID: 125082531
• Publisher: National Council of Teachers of Mathematics
• Year: 1963
• Weight: 901 KB
• Volume: 10
• Category: Article
• ISSN: 0004-136X
• DOI: 10.2307/41184811