\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2014b.00835}
\itemau{Greefrath, Gilbert; Rie{\ss}, Michael}
\itemti{Reality based test tasks with digital tools at lower secondary.}
\itemso{Stillman, Gloria Ann (ed.) et al., Teaching mathematical modelling. Connecting to research and practice. Dordrecht: Springer (ISBN 978-94-007-6539-9/hbk; 978-94-007-6540-5/ebook). International Perspectives on the Teaching and Learning of Mathematical Modelling, 445-456 (2013).}
\itemab
Summary: Some results of the German CASI project (computer algebra systems used in lower secondary schools) in terms of test tasks with real life examples are described. The CASI project examines the long-term use of digital tools in mathematics teaching with years 9 and 10 secondary students. Different tests were developed for special teaching units with digital tools. This contribution brings reality based test problems into focus. The different representations of functional relationships and especially the change between the representations graph and real situation. The resulting differences between students using handheld CAS calculators, and control group students, using simple pocket calculators, are presented with a focus on test tasks about real situations.
\itemrv{~}
\itemcc{M13 U73 D63 D53}
\itemut{modelling; computer algebra systems; representations; real-life problems; functional relationship; digital tools; test tasks; problem posing; examinations}
\itemli{doi:10.1007/978-94-007-6540-5\_38}
\end