
06568713
a
2016c.01079
Campos, Sara
Viseu, Floriano
Rocha, Helena
Fernandes, Jos\'e Antonio
The graphing calculator in the promotion of mathematical writing. (A calculadora gr\'afica na promo\c{c}\~ao da escrita matem\'atica.)
Amado, N\'elia (ed.) et al., Proceedings of the 12th international conference on technology in mathematics teaching, ICTMT 12. Faro: University of Algarve (ISBN 9789898472687). 624632 (2015).
2015
Faro: University of Algarve
PT
U74
C54
mathematics writing
graphing calculator
mathematics teaching
Summary: Through writing, students express many of their processes and ways of thinking. Since at high school level some of the activities are carried out with the graphing calculator, we intend to investigate the contribution of this resource to promote the mathematical writing in the learning of continuous nonlinear models at 11th grade. Adopting a qualitative methodology, we collected and analyzed the students' writing productions. What they write when using the calculator gives evidence about the information valued (when they sketch graphics without any justification); about the strategies used (when they define the viewing window and relate different menus on the graphing calculator); and about the reasoning developed (when they justify the information given by the calculator and the formulation of generalizations and conjectures validation).