id: 02342762
dt: a
an: 2001f.05178
au: Shriki, Atara; David, Hamutal
ti: How do mathematics teachers (inservice and preservice) perceive the concept
of parabola?
so: van den Heuvel-Panhuizen, Marja, Proceedings of the 25th conference of the
International Group for the Psychology of Mathematics Education. Vol.
4. , (ISBN 90-74684-16-5). 169-176 (2001).
py: 2001
pu: ,
la: EN
cc: G79
ut:
ci:
li:
ab: The study described in this paper examined mathematics teachersâ€™
(inservice and preservice) knowledge regarding the concept of parabola.
The participants (33 preservice and 21 inservice) were asked to perform
two tasks: in the first one they were given four different verbal
definitions of sets of curves, and for each definition they were asked
to sketch a curve, which they believed, compatible with the definition,
and to describe its properties. In the second task the participants
were asked to sketch a Venn-Diagram in order to describe the logical
connections between the four sets of curves, which were formed by the
four definitions that appeared in the first task. All the definitions
concerned the parabola. The results show that only a few possess a full
concept image concerning the parabola and thus a few of them are
capable of perceiving the parabola in its algebraic as well as in its
geometrical contexts or to identify links between them. (orig.)
rv: