@proceedings {8424,
	title = {Knowledge for teaching mathematics with technology and the search for a suitable viewing window to represent functions},
	journal = {Proceedings of Cerme 9},
	year = {2015},
	pages = {2403-2409},
	publisher = {ERME},
	address = {Prague, Czech Republic},
	abstract = {<p>The usual difficulties of students regarding the choice of an appropriate window when using the graphing calculator in the study of functions and the importance of the teachers{\textquoteright} knowledge to overcoming them, led to this study. The main goal was to characterize the way teachers address the viewing window in the classroom, trying to infer aspects of the Knowledge for Teaching Mathematics with Technology that can justify that practice. The conclusions reached point to the importance of a set of specific knowledge where I highlight the knowledge of the students{\textquoteright} difficulties, the knowledge of mathematical content necessary to understand the impact of the viewing window on the graphic, and the knowledge of teaching strategies that address both the students{\textquoteright} difficulties and the relevant mathematical knowledge.</p>
},
	url = {https://hal.archives-ouvertes.fr/CERME9},
	author = {Rocha, H.}
}
