Algebra as Generalized Arithmetic: Starting with the Known for a Change

Autor:	Philipp, Randolph A., Schappelle, Bonnie P.
Zdroj:	The Mathematics Teacher, 1999 Apr 01. 92(4), 310-316.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/27970968 Zobrazit plný text záznamu