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All Journal Jurnal Pelita Pendidikan EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA Jurnal Studi Guru dan Pembelajaran Nusantara Hasana Journal KNOWLEDGE: Jurnal Inovasi Hasil Penelitian dan Pengembangan Biocaster : Jurnal Kajian Biologi Jurnal Dirosah Islamiyah Jurnal Pelita: Jurnal Pembelajaran IPA Terpadu
Handayani, Dina
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Pengaruh Problem Based Learning Berbantuan Modul Elektronik terhadap Kemampuan Kognitif, Afektif dan Psikomotorik pada Materi Pencemaran Lingkungan Safira, Mutia; Handayani, Dina
Jurnal Studi Guru dan Pembelajaran Vol. 8 No. 3 (2025): September - Desember 2025
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/jsgp.8.3.2025.7101

Abstract

Permasalahan penelitian ini adalah pembelajaran di kelas masih berpusat pada guru dan belum memanfaatkan teknologi secara optimal. Penelitian ini bertujuan untuk mengetahui pengaruh Problem Based Learning terhadap hasil belajar peserta didik pada materi pencemaran lingkungan. Metode penelitian ini menggunakan jenis penelitian Quasi Eksperimen dengan desain Pretest Posttest Control Group Design, yang dilaksanakan pada semester ganjil tahun ajaran 2025/2026 di SMP Negeri 8 Medan. Populasi dalam penelitian ini adalah seluruh peserta didik kelas VII yang terdiri dari sepuluh kelas. Pengambilan sampel penelitian dilakukan dengan teknik Random Sampling, kelas VII-2 sebagai kelas eksperimen yang diberi perlakuan menggunakan model Problem Based Learning berbantuan Modul Elektrnik (E-Modul) dan kelas VII-8 sebagai kelas kontrol yang menggunakan model Problem Based Learning dengan buku paket. Pengumpulan data dilakukan dengan menggunakan tes dan non tes. Instrumen yang digunakan adalah tes hasil belajar berbentuk pilihan berganda sebanyak 25 soal. Hasil penelitian menunjukkan bahwa nilai rata-rata pre-test dan post-test di kelas eksperimen adalah 46,125 dan 78,38, Sementara itu, kelas kontrol memperoleh nilai rata-rata pretest dan posttest sebesar 45,875 dan 70,13. Hasil uji hipotesis menunjukkan bahwa thitung > ttabel (2 > 1,67), sehingga H0 ditolak dan Ha diterima. Dengan demikian, dapat disimpulkan bahwa terdapat pengaruh yang signifikan dari penerapan model pembelajaran Problem Based Learning terhadap hasil belajar peserta didik kelas VII SMP Negeri 8 Medan pada materi Pencemaran Lingkungan.
Pengaruh Beberapa Media Tanam terhadap Pertumbuhan Tanaman Cabai Rawit (Capsicum frutescens L.) Oktaviani, Jelita; Handayani, Dina; Nusyirwan, Nusyirwan
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1027

Abstract

This study aims to analyze the effect of a combination of soil, cocopeat, and rice husk charcoal on the vegetative and generative growth of cayenne pepper (Capsicum frutescens L.). This study was conducted at the Greenhouse, Medan State University, used a Completely Randomized Design (CRD) consisting of four treatments and six replications. The data obtained were analyzed using ANOVA, followed by Duncan's test at a 5% confidence level. The results showed that the combination of planting media significantly affected the growth and production of cayenne pepper (Capsicum frutescens L.). The soil + rice husk charcoal (3:1) treatment consistently produced the highest average for all observation parameters, including plant height, number of leaves, flowering time, number of fruits per plant and fruit weight per plant. The superiority of this media is related to the properties of rice husk charcoal which is able to increase aeration, and the ability to retain water, so it can affect healthy root development and nutrient absorption, especially phosphorus (P) which is very important for fruit formation. Thus, the combination of soil and rice husk charcoal (3:1) is the most effective treatment for increasing the productivity of cayenne pepper (Capsicum frutescens L.).
Pengaruh Pupuk Kandang Ayam terhadap Pertumbuhan dan Produksi Tanaman Kacang Panjang (Vigna cylindrica L.) Mustaqim, Adnan; Handayani, Dina; Nusyirwan, Nusyirwan
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1032

Abstract

This study aims to analyze the effect of various doses of chicken manure on the growth and yield of long bean plants (Vigna cylindrica L.). The experimental design used was a Completely Randomized Design (CRD) with four treatments and six replications. Treatments consisted of A (control without fertilizer), B (0.5 kg chicken manure), C (1 kg chicken manure), and D (1.5 kg chicken manure). The variables observed included plant height, number of leaves, number of branches, number of pods, pod length, and fresh pod weight at 14, 28, and 42 Days After Planting (DAP). This study was conducted at the Greenhouse, Department of Biology, State University of Medan. The time of this study was from July to September 2025. The results of the Analysis of Variance (ANOVA) showed that the application of chicken manure had a very significant effect (p<0.05) on all parameters of plant growth and yield. Further DMRT testing results demonstrated that treatment D (1.5 kg of chicken manure) consistently produced the highest yields and significantly differed from the other treatments across all observation phases. It can be concluded that applying 1.5 kg of chicken manure per plot is the optimal dose, significantly increasing vegetative growth and yield of long beans.
Co-Authors Abdul Aziz, Haris Abriansyah, Faisal Aida Fitriani Sitompul Arifah, Muethia Aulia, Frida Fadillah, Annisa Dea Gultom, Rahmad H Gultom, Rahmad H. Haniyyah, Ummu Harefa, Dyana Lestari Ika Kartika Khairani, Anita Lili Tansliova Marpaung, Dwi Ratna Anjaning Kusuma Martina Restuati Mustaqim, Adnan Nanda Pratiwi Nanda, Risfina Dwi Nusyirwan Nusyirwan Oktaviani, Jelita Pandiangan, Selvi Oktavia Panggabean, Nurul Huda Puspitasari, Wina Dyah Rini Hafzari Safira, Mutia Sanimah Simanjuntak, Debora Cantyka Febriani Sitorus, Nia Damai Putri Br Zahra, Mutiara