MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS MELALUI MODEL PROBLEM BASED LEARNING SISWA KELAS III SDN DUREN SAWIT 02 JAKARTA TIMUR

FITRIA TIARA ANGEL, . (2026) MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS MELALUI MODEL PROBLEM BASED LEARNING SISWA KELAS III SDN DUREN SAWIT 02 JAKARTA TIMUR. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Penelitian ini bertujuan untuk meningkatkan keterampilan berpikir kritis siswa kelas III SDN Duren Sawit 02 Jakarta Timur melalui penerapan model Problem Based Learning (PBL). Penelitian menggunakan pendekatan Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam tiga siklus dengan tahapan perencanaan, pelaksanaan, observasi, dan refleksi. Subjek penelitian berjumlah 25 siswa kelas III. Data dikumpulkan melalui observasi dan tes keterampilan berpikir kritis, kemudian dianalisis secara deskriptif kuantitatif dan kualitatif. Hasil penelitian menunjukkan bahwa penerapan model PBL mampu meningkatkan keterampilan berpikir kritis siswa dari 20% pada pratindakan menjadi 28% pada siklus I, 60% pada siklus II, dan 84% pada siklus III. Selain itu aktivitas guru pada siklus I sebesar 76,47%, siklus II sebesar 88,23% dan meningkat menjadi 100% pada siklus III. Sedangkan, aktivitas siswa pada siklus I sebesar 64,71%, siklus II sebesar 76,47%, dan meningkat menjadi 94,11% pada siklus III. Hasil tersebut menunjukkan bahwa penerapan model PBL efektif meningkatkan keterampilan berpikir kritis siswa pada pembelajaran IPA materi menghemat energi. **** This study aims to improve the critical thinking skills of third-grade students at SDN Duren Sawit 02, East Jakarta, through the implementation of the Problem Based Learning (PBL) model. This study employed a Classroom Action Research approach, conducted in three cycles consisting of the planning, implementation, observation, and reflection stages. The research subjects consisted of 25 third-grade students. Data were collected through observation and critical thinking skill tests, then analyzed using quantitative and qualitative descriptive methods. The results showed that the implementation of the PBL model was able to improve students’ critical thinking skills from 20% in the pre-intervention phase to 28% in Cycle I, 60% in Cycle II, and 84% in Cycle III. Additionally, teacher activity reached 76.47% in Cycle I, 88.23% in Cycle II, and increased to 100% in Cycle III. Meanwhile, student engagement reached 64.71% in Cycle I, 76.47% in Cycle II, and increased to 94.11% in Cycle III. These results indicate that the implementation of the PBL model is effective in improving students’ critical thinking skills in science lessons on the topic of energy conservation.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Dr. Tunjungsari Sekaringtyas, S.Pd., M.Pd. ; 2). Prof. Dr. Yurniwati, M.Pd.
Subjects:	Sains > Sains, Ilmu Pengetahuan Alam
Divisions:	FIP > S1 Pendidikan Guru Sekolah Dasar
Depositing User:	Fitria Tiara Angel .
Date Deposited:	20 Aug 2026 06:49
Last Modified:	20 Aug 2026 06:49
URI:	http://repository.unj.ac.id/id/eprint/72524

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