id: 06452116
dt: a
an: 2015d.00765
au: Attorps, Iiris; Björk, Kjell; Radic, Mirko; Viirman, Olov
ti: Teaching inverse functions at tertiary level.
so: Ubuz, Behiye (ed.) et al., CERME 8. Proceedings of the eigth congress of
the European Society of Research in Mathematics Education, Antalya,
Turkey, February 6‒10, 2013. Ankara: Middle East Technical University
(ISBN 978-975-429-315-9). 2524-2533 (2013).
py: 2013
pu: Ankara: Middle East Technical University
la: EN
cc: I25 U75
ut: concept definition; concept image; inverse functions; technology; variation
theory
ci:
li:
ab: Summary: This study is a part of an ongoing research that attempts to
explain the relationship between the teachers’ instructional practise
and students’ learning in the context of functions and function
inverses. The question in this paper is how the use of technology as a
pedagogical tool may contribute to the understanding of the inverse
function concept. An engineering student group $(n=17)$ was taught
functions and inverse functions with the assistance of GeoGebra. In our
theoretical framework we apply variation theory together with the
theory of concept image and concept definition. The data were gathered
by doing a pre and post test concerning inverse functions. Our
experiment revealed that students’ concept images in the post test
were more developed compared with the results in the pre test.
rv: