Developing Number Sense and Computational Strategies in Problem-Centered Classrooms

Autor:	Trafton, Paul R., Hartman, Christina L.
Zdroj:	Teaching Children Mathematics, 1997 Dec 01. 4(4), 230-233.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/41196933 Zobrazit plný text záznamu