Autor:	Curulla, Nancy, Rogers, Steve, Stern, Phyllis E., Sasser, John E., Seber, Sue, Wagner, Don, Maxwell, Sheryl A., Ingram, Thomas S., Corley, Daniel, Kauffman, Tom, Home, Loretta A., Burney, Grace, Contino, Mike
Zdroj:	Mathematics Teaching in the Middle School, 1994 Nov 01. 1(3), 187-248.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/41182754 Zobrazit plný text záznamu