id: 02367190
dt: a
an: 2006b.01157
au: Vaiyavutjamai, Pongchawee; Ellerton, Nerida F.; Clements, M.A.
ti: Students’ attempts to solve two elementary quadratic equations: a study
in three nations.
so: Clarkson, Philip et al., MERGA 28 - 2005. Building connections: Theory,
research and practice. Vol. 1 and 2. ,. 735-742 (2005).
py: 2005
pu: ,
la: EN
cc: H30 D60 C30
ut:
ci:
li:
ab: 465 students, comprising students in Year 9 classes in Thailand, Year 10
students in Brunei Darussalam, and second-year university students in
the United States, attempted to solve the same quadratic equations.
Most of the school students and many of the university students were
confused about the concept of a variable and the meaning of ’solution
to a quadratic equation’. Most of the students in the three
subsamples acquired neither instrumental nor relational understanding
of elementary quadratic equations. (orig.)
rv: