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All Journal Jurnal Pengabdian Sosial MetaBio : Jurnal Pendidikan
Nurazizah, Melani
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Memanfaatkan Sampah Limbah Plastik Menjadi Paving Block Dengan Menggunakan Kompor Berbahan Bakar Oli Bekas Fhaisal, Dzakwan Shiddieq; Pratitasari, Diah Rana; Angga, Angga; Rasyidh, Miftah Farid All; Nur’Aeni, Silva; Mutafaqqihuddin, Faiz Ismail; Nurazizah, Melani; Muharram, Asep Intan; Az-Zahra, Saffa Alifah; Hanifah, Syifa Shalsa; Hirzi, Aziz Taufik
Jurnal Pengabdian Sosial Vol. 1 No. 11 (2024): September
Publisher : PT. Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/8a8e6n13

Abstract

Sampah plastik menjadi masalah serius di masyarakat, dengan tingkat akumulasi yang tinggi dan sulit terurai. Pengabdian ini bertujuan untuk mengolah limbah plastik menjadi paving block menggunakan kompor berbahan bakar oli bekas, sebagai alternatif solusi pengelolaan sampah. Metode yang digunakan meliputi pengumpulan sampah plastik, pemanasan, pencetakan, dan pengujian kualitas paving block yang dihasilkan. Hasil menunjukkan bahwa paving block dari limbah plastik memiliki kekuatan dan daya tahan yang baik, serta lebih ringan dibandingkan paving block konvensional. Kegiatan ini tidak hanya mengurangi limbah plastik, tetapi juga meningkatkan kesadaran masyarakat akan pentingnya pengelolaan sampah yang efektif. Dengan demikian, pembuatan paving block ini dapat berkontribusi pada inovasi kewirausahaan dan pengelolaan lingkungan yang lebih baik
PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING (PjBL) TERHADAP KEMAMPUAN MEMECAHKAN MASALAH DAN BERPIKIR KRITIS SISWA DI SMP YAYASAN PERGURUAN KELUARGA PEMATANGSIANTAR 2021/2022 Tridelpina Purba, Sumarny; Perayanti Sinaga, Dian; Nurazizah, Melani
Jurnal Metabio Vol. 4 No. 2 (2022): MetaBio : Jurnal Pendidikan (Edisi Elektronik)
Publisher : Program Studi Pendidikan Biologi, Fakultas Keguruan Dan Ilmu Pendidikan Universitas Simalungun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36985/t0q2dt40

Abstract

This study aims to determine the effect of the Project-Based Learning model on students' problem solving and critical thinking skills. The population in this study were eighth-grade students of Yayasan Perguruan Keluarga Private Junior High School, Pematangsiantar, in the 2021/2022 academic year. The sample consisted of four classes totaling 118 students. Cluster random sampling was used to select class VIII-3 (30 students) as the control class and VIII-1 (30 students) as the experimental class. The instrument used in this study was a test. The data were analyzed to determine the mean, median, mode, standard deviation, linearity test, normality test, homogeneity test, regression test, t-test, and f-test. Data analysis using ANOVA with a significance level of 5% (α = 0.05) using SPSS 21 software revealed an effect of Project-Based Learning on problem-solving skills. The calculated F-value was greater than the F-table (8.184 > 4.004) and the significance value was less than 0.05 (0.000 < 0.05). The hypothesis testing on students' critical thinking skills showed an F-value greater than the F-table (19.208 > 4.004) and the significance value was less than 0.05 (0.000 < 0.05). Therefore, Ha was accepted and H0 was rejected. This indicates that the Project-Based Learning (PjBL) model has an effect on students' problem-solving and critical thinking skills on the human excretory system topic in eighth-grade students at Yayasan Perguruan Keluarga Pematangsiantar Private Junior High School in the 2021/2022 academic year. 
Co-Authors Angga Angga Az-Zahra, Saffa Alifah Aziz Taufik Hirzi Fhaisal, Dzakwan Shiddieq Hanifah, Syifa Shalsa Muharram, Asep Intan Mutafaqqihuddin, Faiz Ismail Nur’Aeni, Silva PERAYANTI SINAGA, DIAN Pratitasari, Diah Rana Rasyidh, Miftah Farid All Tridelpina Purba, Sumarny