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All Journal Best Journal (Biology Education, Sains and Technology) Faedah: Jurnal Hasil Kegiatan Pengabdian Masyarakat Indonesia
Rizki Wulandari
Universitas Muhammadiyah Palembang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Engineering Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Public Health

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Pengaruh Model Problem Based Learning Terhadap Keterampilan Berpikir Kritis Siswa Materi Keanekaragaman Hayati Rizki Wulandari; Sri Wardhani; Sulton Nawawi
BEST Journal (Biology Education, Sains and Technology) Vol 3, No 1 (2020): Juni 2020
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v3i1.2435

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh dari model Problem Based Learning terhadap keterampilan berpikir kritis siswa. Metode yang digunakan adalah metode Quasi eksperimen dan desain penelitiannya adalah Non equivalen control group design. Sampel dalam penelitian ini adalah kelas X MIPA 3 SMA Unggul Negeri 4 Palembang sebagai kelas eksperimen dan kelas X MIPA 4 SMA Unggul Negeri 4 Palembang sebagai kelas kontrol. Teknik pengumpulan data yang digunakan adalah teknik tes tertulis berupa soal yang yang berbentuk uraian yang berjumlah 16 soal yang mengacu kepada soal berpikir kritis. Uji Hipotesis yang digunakan adalah uji t data berpasangan (paired sample t test), hasil yang diperoleh dari perhitungan Paired Sample T-Test dengan (0,05%) didapatkan nilai signifikansi (2-tailed) 0,000 0,05, dengan nilai t-hitung lebih besar dari t-tabel, yaitu didapat nilai t-hitung adalah 7,923 dan nilai t-tabelnya adalah 2,042. Artinya dapat disimpulkan bahwa model Problem Based Learning berpengaruh terhadap keterampilan berpikir kritis siswa kelas X pada materi keanekaragaman hayati
Pemanfaatan Limbah Dapur sebagai Bahan Baku Kompos dengan Aktivator EM4 Selama 7 Hari Heripan Heripan; Adzkia Rahma Aulia; Rizki Wulandari; Alif Wahyuda; Rio Rivaldo; Ahmad Erik Henly Zaisa; Fatimah Isnaine Azzahra; Yosi Pratama; Sherly Margareta Oktarani; Gea Amanda; Mico Emron Saputra; Emelia Astriani
Faedah: Jurnal Hasil Kegiatan Pengabdian Masyarakat Indonesia Vol. 4 No. 3 (2026): Agustus: Jurnal Hasil Kegiatan Pengabdian Masyarakat Indonesia
Publisher : FKIP, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/faedah.v4i3.2022

Abstract

Kitchen waste is a major source of organic household waste, yet its management at the community level remains limited. This study aimed to examine changes in the physical characteristics of compost produced from kitchen waste using the Effective Microorganism 4 (EM4) activator over a seven-day period at the household scale, as part of a student community service (KKN) program in tanjung pinang 2 village. A descriptive observational method was employed, involving daily monitoring of the composting process. The results indicated that the addition of EM4 accelerated the decomposition of kitchen waste, evidenced by a shift in color to dark brown-black, a transition to a loose, soil-like texture, a reduction in material volume, and the emergence of a non-pungent, fermented odor by the eventh day. These findigs align with previous research demonstrating the effectiveness of EM4 in accelerating the composting of household organic waste. This initiative is expected to serve as a simple model for organic waste management that can be replicated by the community.
Co-Authors Adzkia Rahma Aulia Ahmad Erik Henly Zaisa Alif Wahyuda Emelia Astriani Fatimah Isnaine Azzahra Gea Amanda Heripan Heripan Mico Emron Saputra Rio Rivaldo Sherly Margareta Oktarani Sulton Nawawi Wardhani, Sri Yosi Pratama