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All Journal Delta-Pi : Jurnal Matematika dan Pendidikan Matematika Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA) OMEGA: Jurnal Keilmuan Pendidikan Matematika
Manalu, Benardo
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Biochemistry, Genetics & Molecular Biology Chemistry Education Materials Science & Nanotechnology Mathematics Physics

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ANALISIS PENGARUH SISTEM BELAJAR LEMBUR TERHADAP KUALITAS TIDUR MAHASISWA UNIVERSITAS PENDIDIKAN INDONESIA KAMPUS PURWAKARTA Nooraisya, Aulia Mella Nooraisya; Syahbana, Luthfia Chairun Nisa Putri; Khaerani, Maryam; Lidia, Vanska; Manalu, Benardo; Putri, Hafiziani Eka
OMEGA: Jurnal Keilmuan Pendidikan Matematika Vol. 4 No. 2 (2025): OMEGA: Jurnal Keilmuan Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Alwashliyah Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/jkpm.v4i2.982

Abstract

Studying overtime is a common habit among students, especially when facing deadlines for assignments and exams, which has the potential to affect health and negatively affect sleep quality. Continuous overtime study system will affect the quality of sleep of students resulting in physical and mental disorders. This situation will affect the academic decline, namely the results of the preparation of tasks to be less than optimal. Many students feel pressured by their academic load and daily activities, causing serious sleep disturbances. The large number of tasks that accumulate and the continuous overtime study system will affect the quality of student sleep, resulting in physical and mental balance disorders. This situation will affect academic decline, namely learning outcomes and assignments become less than optimal. This study aims to analyze the effect of overtime learning system on the quality of sleep of students of Universitas Pendidikan Indonesia Purwakarta Campus. The research we conducted used a quantitative approach by conducting a survey of 50 students from various study programs. Data were analyzed using normality, homogeneity and wilxocon tests to identify the relationship between the influence of the overtime study system and sleep quality. The results show that there is a significant influence between the overtime study system and students' sleep quality, with disrupted sleep patterns and daytime fatigue leading to a decrease in students' concentration.
Pengembangan instrumen tes uraian yang valid dan reliabel untuk mengukur kemampuan berpikir kritis matematis siswa kelas V SD Rahayu, Teten Ginanjar; Nurussama, Alfiana; Putri, Hafiziani Eka; Salsabila, Resa Salma; Khaerani, Maryam; Manalu, Benardo
Delta-Pi: Jurnal Matematika dan Pendidikan Matematika Vol 14, No 1 (2025)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/dpi.v14i1.9973

Abstract

Penelitian ini bertujuan untuk mengembangkan instrumen tes uraian yang valid, praktis, dan reliabel guna mengukur kemampuan berpikir kritis matematis serta hasil belajar matematika siswa kelas V sekolah dasar. Proses pengembangan instrumen mengikuti tahapan Research and Development (RD) dengan menggunakan model 4-D yang terdiri dari empat tahap utama, yaitu: Define (pendefinisian), Design (perancangan), Develop (pengembangan), dan Disseminate (penyebarluasan). Validasi instrumen dilakukan oleh tiga ahli di bidang pendidikan matematika, sedangkan uji coba diberikan kepada 33 siswa kelas V di salah satu SD. Kepraktisan instrumen dievaluasi melalui uji coba terbatas dengan melibatkan guru dan siswa, yang menilai aspek kemudahan penggunaan, dan kejelasan petunjuk. Hasil uji kepraktisan menunjukkan bahwa instrumen mudah digunakan oleh guru dalam proses penilaian dan dipahami oleh siswa tanpa menimbulkan kebingungan atau mengganggu jalannya pembelajaran. Analisis data dilakukan melalui uji validitas butir menggunakan korelasi Pearson dan uji reliabilitas dengan Alpha Cronbach. Hasil analisis menunjukkan bahwa semua butir instrumen memenuhi kriteria validitas dengan koefisien antara 0,45-0,82, serta reliabilitas instrumen mencapai 0,87 yang tergolong sangat baik. Berdasarkan hasil tersebut, instrumen tes uraian yang dikembangkan dinyatakan layak digunakan karena telah memenuhi kriteria valid, praktis, dan reliabel, sehingga dapat diandalkan sebagai alat ukur kemampuan berpikir kritis matematis dan hasil belajar matematika pada siswa SD.Kata kunci: Pengembangan Instrumen, Instrumen Penilaian; Matematika; Berpikir Kritis Matematis; Siswa Sekolah Dasar.
Pengaruh Model Problem Based Learning Berbantuan Media PhET Simulation terhadap Pemahaman Konsep IPA Siswa SD Mutiah, Mutiah; Nisa, Khairunnisa; Febriani, Santi; Zahra, Nazwa Aulia; Fazila, Nasha Indri; Manalu, Benardo; Alindra, Afridha Laily
Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA) Vol 7, No 2 (2026): Mei 2026
Publisher : STKIP HARAPAN BIMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56842/jp-ipa.v7i2.919

Abstract

Primary school students' understanding of science concepts remains low due to teacher-centered learning and minimal use of supporting media. This condition indicates the need for a learning model that can increase active participation and facilitate meaningful inquiry activities. This study aims to determine the effect of the PhET Simulation-assisted Problem Based Learning model on the ability to understand science concepts in energy change material. This study used a quantitative method with a One Group Pretest Posttest Design involving 22 fourth-grade students at an elementary school in Purwakarta. The research instrument was a multiple-choice test based on seven concept comprehension indicators. The data were analyzed using descriptive statistics, Shapiro Wilk normality test, Wilcoxon test, and N Gain calculation. The results showed an increase in conceptual understanding after the learning model was implemented, as indicated by an increase in the average pretest score to the average posttest score and an N Gain score of 0.73 in the high category. The Wilcoxon test confirmed a significant difference between the initial ability and the ability after the treatment. These findings confirm that PhET Simulation-assisted Problem Based Learning is effective in supporting science concept comprehension and has the potential to be a more interactive and meaningful learning alternative for elementary school students.
Co-Authors Alindra, Afridha Laily Fazila, Nasha Indri Febriani, Santi Hafiziani Eka Putri, Hafiziani Eka Khaerani, Maryam Lidia, Vanska Mutiah Mutiah Nisa, Khairunnisa Nooraisya, Aulia Mella Nooraisya Nurussama, Alfiana Rahayu, Teten Ginanjar Salsabila, Resa Salma Syahbana, Luthfia Chairun Nisa Putri Zahra, Nazwa Aulia