Teaching Fractions in Elementary School: An Observational Study
Van Steenbrugge, Hendrik ; Remillard, Janine ; Verschaffel, Lieven ; Valcke, Martin ; Desoete, Annemie
The Elementary school journal, 2015-09, Vol.116 (1), p.49-75 [Periódico revisado por pares]Chicago: University of Chicago Press
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