Putting the unit in pre-service secondary teachers' unit circle

Autor:	Moore, Kevin C., LaForest, Kevin R., Kim, Hee Jung
Zdroj:	Educational Studies in Mathematics, 2016 Jun 01. 92(2), 221-243.
Databáze:	JSTOR Journals
Externí odkaz:	http://www.jstor.org/stable/24830658 Zobrazit plný text záznamu