Abstract: The research is proposed
to: (1) get open-ended problems which are valid and practice on the math topic Triangle and Rectangle in
junior high school. (2) find potential effects of open ended problems to the
students on the topic about triangle and rectangle in junior high school. The
methodology that use in this study is a developmental research. Subject of this
research is 35 students of seventh grade (VII.10) at SMP Negeri 2 Banyuasin
III. The way of collecting data is by using interview, document analysis, and
test of open ended problems. All data have been collected was analysed by using
qualitative descriptive. The result of data analysis come to conclusion, that:
(1) This research produces open ended problems on the topic of triangle and
rectangle for students of VII grade are
valid and practice. The validity was described by the result of validator
scores, where the all validators state that the instrument have been valid
based on content, construction and language. The validity was also described by
the validation the problems in small group. The practical was described by
testing the problem to a small group where most of the students were able to
solve the open-ended problems given. (2) The prototype of open-ended problems
which was developed have positive potential effect to the result of student
learning process, and it is shown by the variety of the students’ answers and
the average of complete students of 3 time tests of open-ended problems which
resulted 77,2%.
Keywords: Development
Research, Open-Ended Problem, Triangle and Rectangle
Penulis: Mariska Yusuf,
Zulkardi Zulkardi, Trimurti Saleh
Kode Jurnal: jpmatematikadd090013
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