ABSTRACT
Wahyuni, Nur. 2020. Development of Perimeter and Area of a rectangle Instructional Materials Based on Problem
Posing to Train the Creativity of Elementary School Students in Problem
Solving. Thesis, Basic Education Study Program, Postgraduate Program, Surabaya
State University, Advisor: (I) Dr s . Agung Lukito,
M.S., Ph.D., (2) Neni Mariana, M.Sc., Ph.D.
Keywords:
Instructional Materials, Problem Posing, Problem Solving Creativity
This research is a development al study that develops perimeter and area of a rectangle
instructional materials based on problem posing to train the creativity of
elementary school students in problem solving. Creativity is very important in
the modern era, so it must be improved by making efforts , such as developing
instructional materials that can train student ’ s creativity in
solving problems with various alternative answers. This study aimed to describe: (1) the instructional
materials on perimeter and area of a rectangle based on problem posing
to train the creativity of
elementary school students in problem solving that satisfy valid ity , practical ity , and effective ness ; and (2) the
creativity of elementary school students in problem solving through problem posing instruction on perimeter and area
of a rectangle.
This study uses the
4-D development model from
Thiagarajan (1974) , which includes
Define, Design, Develop, and Disseminate. Subjects of the Develop stage are 15 students
of grade 4, and of the Disseminate stage are 20 students of the same grade from a different group.
This research produces valid, practical, and effective instructional materials . The results of
the study in the Develop stage showed that as many as 53.33%
of the total number of students could be classified as creative
and at the Disseminate stage , as much as 65% of the total number of students could be included in the creative category. In the Develop stage , there was an
increase in creativity by 0.52 while in the Disseminate phase there was
an increase in creativity by 0.55 , which was included
in the category of moderate improvement. Based on the results of data analyses,
two conclusions could be drawn: (1) Learning using
the Problem Posing approach can train student’ s creativity in solving problems on perimeter and area of a rectangle; and (2) Student’ s creativity
increased after following learning with
problem posing on perimeter and area of a
rectangle .