TY  - GEN
CY  - UNIVERSITAS LAMPUNG
ID  - eprints86747
UR  - http://digilib.unila.ac.id/86747/
A1  - Wayan , Lusi Oktaviana 	
Y1  - 2024/06/07/
N2  - Penelitian ini bertujuan untuk mendeskripsikan efektivitas pembelajaran berbasis
proyek pengolahan limbah cair industri tahu dalam meningkatkan keterampilan

berpikir kritis siswa SMA. Metode penelitian yang digunakan adalah Weak-
Eksperiment dengan desain The One Group Pretest-Posttest Design. Populasi

dalam penelitian ini adalah seluruh siswa kelas XI di SMAN 15 Bandar Lampung.
Pengambilan sampel dilakukan dengan teknik purposive sampling dan kelas XI.1
dijadikan sebagai sampel penelitian. Teknik analisis data dilakukan dengan uji
statistik parametrik uji t dan perhitungan n-gain. Hasil penelitian menunjukkan
bahwa nilai rata-rata postes siswa lebih tinggi daripada nilai rata-rata pretes,

dengan n-gain rata-rata siswa yaitu sebesar 0,62 yang berkategori sedang. Rata-
rata persentase respon siswa sebesar 85,5% dan keterlaksanaan pembelajaran

sebesar 82% berkategori sangat baik dan sangat tinggi. Berdasarkan hasil
penelitian ini dapat disimpulkan bahwa pembelajaran berbasis proyek pengolahan
limbah cair industri tahu efektif dalam meningkatkan keterampilan berpikir kritis
siswa.
Kata kunci: keterampilan berpikir kritis, limbah cair industri tahu, pembelajaran
berbasis proyek

The purpose of this research described the effectiveness of project-based learning
model using liquid waste from tofu industry to improve high school students?
critical thinking skills. The method used was Weak Experiment with The One
Group Pretest-Posttest Design. The population on this research were all of
students in grade XI of SMAN 15 in Bandar Lampung. The sample was
determined using a purposive sampling technique and class XI.1 was used as the
sample in the research. The data analysis techniques used in this research are
parametric statistical test, t-tests dan n-gain calculations. The results of this
research show that the average of students? post-test score is higher than the
average pre-test score, with the average n-gain for students' being 0.62 in the
medium category. The average percentage of students? responses was 85,5% and
the implementation of learning was 82% which is in the very good and very high

category. Based on the results of this research, it can be concluded that project-
based learning using liquid waste from the tofu industry is effective in improving

students' critical thinking skills.
Keywords: critical thinking skill, liquid waste from tofu industry, project-based
learning
PB  - FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN
TI  - EFEKTIVITAS PEMBELAJARAN BERBASIS PROYEK PENGOLAHAN
LIMBAH CAIR INDUSTRI TAHU DALAM MENINGKATKAN
KETERAMPILAN BERPIKIR KRITIS SISWA SMA
AV  - restricted
ER  -