id: 05197614
dt: j
an: 2007b.00355
au: Yerushalmy, Michal
ti: Slower algebra students meet faster tools: Solving algebra word problems
with graphing software.
so: J. Res. Math. Educ. 37, No. 5, 356-387 (2006).
py: 2006
pu: National Council of Teachers of Mathematics (NCTM), Reston, VA
la: EN
cc: H30 I20 U70 M10
ut: elementary algebra; graph of a function; functions; graphing calculators;
mathematical modeling; reform of mathematics education; computer as
educational medium; visualization; graphical representations; lower
secondary; mathematical software; research; empirical investigations;
interviews
ci:
li: doi:10.2307/30034859
ab: Summary: The article discusses the ways that less successful mathematics
students used graphing software with capabilities similar to a basic
graphing calculator to solve algebra problems in context. The study is
based on interviewing students who learned algebra for 3 years in an
environment where software tools were always present. We found
differences between the work of these less successful students and the
traditional problem-solving patterns of less successful students. These
less successful students used the graphing software to obtain a broader
view, to confirm conjectures, and to complete difficult operations.
However, they delayed using symbolic formalism, and most of their
solution attempts focused on numeric and graphic representations. Their
process of reaching a solution was found to be relatively long, and the
graphing software tool was often not used at all because it did not
support symbolic formulation and manipulations.
rv: