From Arithmetical Thought to Algebraic Thought: The Role of the "Variable"

Autor:	Malisani, Elsa, Spagnolo, Filippo
Zdroj:	Educational Studies in Mathematics, 2009 May 01. 71(1), 19-41.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/40284583 Zobrazit plný text záznamu