Are They Wrong? Or Did They Just Answer a Different Question?

Autor:	Wells, Pamela J., Coffey, David C.
Zdroj:	Teaching Children Mathematics, 2005 Nov 01. 12(4), 202-207.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/41198698 Zobrazit plný text záznamu