id: 06333052
dt: j
an: 2014e.00548
au: Rizkianto, Ilham
ti: Constructing geometric properties of rectangle, square, and triangle in the
third grade of Indonesian primary schools.
so: Indones. Math. Soc. J. Math. Educ. 4, No. 2, 160-171 (2013).
py: 2013
pu: Indonesian Mathematical Society (IndoMS), Palembang
la: EN
cc: G42 D42 U72
ut: geometric properties; rectangle; square; triangle; design research;
realistic mathematics education
ci:
li:
ab: Summary: Previous studies have provided that when learning shapes for the
first time, young children tend to use the prototype as the reference
point for comparisons, but often fail when doing so since they do not
yet think about the defining attributes or the geometric properties of
the shapes. Most of the time, elementary students learn geometric
properties of shapes only as empty verbal statements to be memorized,
without any chance to experience the concepts meaningfully. In the
light of it, a sequence of instructional activities along with computer
manipulatives was designed to support Indonesian third graders in
constructing geometric properties of square, rectangle, and triangle.
The aim of the present study is to develop a local instructional theory
to support third graders in constructing geometric properties of
rectangle, square and triangle. Thirty seven students of one third
grade classes in SD Pupuk Sriwijaya Palembang, along with their class
teacher, were involved in the study. Our findings suggest that the
combination of computer and non computer activities supports third
graders in constructing geometric properties of square, rectangle, and
triangle in that it provides opportunities to the students to
experience and to develop the concepts meaningfully while using their
real experiences as the bases to attain a higher geometric thinking
level.
rv: