期刊名称：Jurnal Handayani: Jurnal Kajian Pendidikan Pra Sekolah dan Pendidikan Dasar
印刷版ISSN：2355-1739
电子版ISSN：2407-6295
出版年度：2019
卷号：10
期号：1
页码：28-34
DOI：10.24114/jh.v10i1.14135
出版社：Universitas Negeri Medan
摘要：Tujuan penelitian ini ialah untuk mendeskripsikan penerapan model
Problem Based Learning dalam meningkatkan kemampuan berpikir kritis
peserta didik pada mata pelajaran Matematika materi statistika kelas V SD
Negeri Melung. Problem Based Learning digunakan untuk merangsang berpikir
kritis yang berorientasi masalah. Melalui penerapan Problem Based Learning ini,
peserta didik diharapkan dapat menemukan pemecahan masalah yang dibahas dalam
proses pembelajaran. Metode yang digunakan adalah Penelitian Tindakan Kelas
(PTK). Ada 66,6% peserta didik dalam kategori “cukup kritis” sedangkan 33,30%
lainnya ada dalam kategori “tidak kritis”. Setelah dilakukan tindakan dalam siklus I
dan siklus II ditemukan bahwa mahasiswa yang termasuk dalam kategori “sangat
kritis” dari yang semula tidak ada meningkat menjadi 29%, untuk kategori “kritis”
dari yang semula tidak ada meningkat menjadi 58% peserta didik. Maka
disimpulkan bahwa model Problem Based Learning mampu meningkatkan
kemampuan berpikir kritis peserta didik dalam mata mata pelajaran Matematika
materi statistika kelas V SD Negeri Melung.
其他摘要：The purpose of this study was to describe the application of the
Problem Based Learning model to improving student’s critical thinking skills
on Mathematics subjects in the fifth grade statistics material at Melung
Elementary School. Problem Based Learning is used to stimulate problem-oriented
critical thinking. Through the application of Problem Based Learning, students are
expected to be able to find solutions to problems discussed in the learning process.
The method used is Classroom Action Research (CAR). There were 66.6% of the
students in the "fairly critical" category while the other 33.30% were in the "not
critical" category. After the actions in cycle I and cycle II, it was found that students
who were included in the "very critical" category from the original ones did not
increase to 29%, for the "critical" category from the original ones that did not
increase to 58% of students. Then it was concluded that the Problem Based Learning
model was able to improve students' critical thinking skills in Mathematics subject
matter in the fifth grade statistics material at Melung Elementary School.
