EAN: 9783658326364

ESSENER BEITRÄGE ZUR MATHEMATIKDIDAKTIK TECHN...

Technology is becoming more and more integrated in mathematics teaching and the use of
technology is explicitly demanded by the curricula. Technology can be for example integrated
while conceptualizing parameters of quadratic functions. In this thesis three technical
visualizations (classic function plotter  drag mode  and sliders) for the manipulation of
parameters of quadratic functions shall be compared with an access without the possibility of
technical visualization. For this purpose  a Guided Discovery environment was developed  which
was conducted in an intervention study with 14 classes of grade 9 (N=383). Different strengths
and weaknesses of the individual visualizations in favor of the dynamic visualizations by drag
mode and slider are shown. Also  different potentials and constraints of the use of technology
are visible  for example the students use the technology to test their own hypotheses that were
generated through the use of technology. About the author Lisa Göbel completed her dissertation
as a research assistant under Prof. Dr. Bärbel Barzel in the Mathematics Education department
at the University of Duisburg-Essen. Her interests include functional thinking and the use of
technology in mathematics teaching.

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