PENERAPAN PROBLEM BASED LEARNING PADA MATERI PENCEMARAN LINGKUNGAN UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PESERTA DIDIK KELAS X MIA 3 SMA NEGERI 3 SURAKARTA
ABSTRACT: The
purpose of this
research is to
improve students’ critical
thinking skill on Environmental Pollution
Subject at class
X MIA 3
of SMA Negeri
3 Surakarta. The
research is a Classroom Action Research with 2 cycles of
action. Each cycle consist of 4 phases which is planning, acting, observing,
and reflecting. The result of the observations showed, 1) interpretation skill
43.97%, 2) analysis 29.31%, 3) evaluation 32.76%,
4) inference 43.10%,
5) explanation 53.45%,
and 6) selfregulation 52.59%. Average of students’
critical thinking skill procentage is 42,53%. The method of data collection is
through observation, tests, and documentation. Technical analysis of data is
technical qualitative descriptive. Data validation is use triangulation
methods.
The results of
the application of
Problem Based Learning
on Environmental Pollution
Subject showed an increase of students’ critical thinking skill.
Students’ critical thinking ski ll in the first cycle is 70,83%. Students’
critical thinking skill in the second cycle is 75%. Based on the result of the
research, we can conclude that the application of Problem Based Learningon Environmental
Pollution Subject in
general can improve
students’ critical thinking
skill at class
X MIA 3 of SMA Negeri 3 Surakarta, despite the increase that occurs
varies in each cycle.
Penulis: Hesti Retno Puji
Astuti, Baskoro Adi Prayitno, Suwarno
Kode Jurnal: jpbiologidd150246
