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All Journal JURNAL PENDIDIKAN TAMBUSAI JCRS (Journal of Community Research and Service) Jurnal Ilmiah Aquinas Journal for Lesson and Learning Studies CHEDS: Journal of Chemistry, Education, and Science JURNAL CURERE Indonesian Journal of Advanced Research (IJAR)
Dedi Holden Simbolon, Dedi Holden
Universitas Sutomo
Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Other

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Pengaruh Model Pembelajaran Inkuiri Terbimbing terhadap Aktivitas dan Hasil Belajar IPA Siswa Simbolon, Dedi Holden; Silalahi, Eka Kartika; Perbina, Theresia; Sitepu, Moria Pepayosa Br
Jurnal Pendidikan Tambusai Vol. 7 No. 3 (2023): Desember 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v7i3.10568

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran inkuiri terbimbing terhadap aktivitas dan hasil belajar mahasiswa serta interaksi antara model pembelajaran dan aktivitas terhadap hasil belajar IPA di SD. Sampel dalam penelitian ini yaitu siswa sebanyak 2 kelas yang dikategorikan dengan kelas eksperimen dan kelas kontrol. Jenis penelitian ini adalah quasi eksperimen dan instrumen yang digunakan dalam penelitian ini adalah test pilihan ganda sebanyak 10 soal dan lembar observasi. Untuk uji hipotesis penelitian menggunakan uji independent sample t test varian dengan taraf signifikan ? = 0.05. ???????????????????????? = saraf siginifikan ???? = 5 % = 0,05 karena uji dua pihak (two tails), maka nilai ????/2 = 0,05/2 = 0,025 db = n-2 = 42 – 2 = 40 sehingga ???????????????????????? = ????(0,025;40) = 2,021. Berdasarkan perhitungan statistik uji independent t test untuk kelas eksperimen dan kelas kontrol diperoleh ????????????????????????? = 8,254 dan ???????????????????????? = 2,021, karena ????????????????????????? > ???????????????????????? yaitu 8,254 > 2,021 maka hasil penelitian dapat disimpulkan bahwa ???????? ditolak dan ????1 diterime, dengan menggunakan model pembelajaran inkuiri terbimbing ada pengaruh signifikan terhadap hasil belajar IPS siswa kelas V SD Swasta Advent 3 Medan Tahun Pelajaran 2022/2023. ???????????????????????? = saraf siginifikan ???? = 5 % = 0,05 karena uji dua pihak (two tails), maka nilai ????/2 = 0,05/2 = 0,025 db = n-2 = 42 – 2 = 40 sehingga ???????????????????????? = ????(0,025;40) = 2,021 Berdasarkan perhitungan statistik uji independent t test untuk kelas eksperimen dan kelas kontrol diperoleh ????????????????????????? = 10,474 dan ???????????????????????? = 2,021, karena ????????????????????????? > ???????????????????????? yaitu 10,474 > 2,021 maka hasil penelitian dapat disimpulkan bahwa ???????? ditolak dan ????1 diterima, dengan menggunakan model pembelajaran inkuiri terbimbing ada pengaruh signifikan terhadap aktivitas belajar IPA siswa kelas V SD Swasta Advent 3 Medan Tahun Pelajaran 2022/2023
Physics Learning Using Guided Inquiry Models Based on Virtual Laboratories and Real Laboratories to Improve Learning simbolon, dedi holden; Silalahi, Eka Kartika
Journal for Lesson and Learning Studies Vol. 6 No. 1 (2023): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jlls.v6i1.61000

Abstract

The lack of teacher creativity in testing various learning models and methods makes a significant contribution to the stigma of boredom and boredom in studying physics. The right learning model is needed so that it can help students improve learning outcomes, especially learning physics. The purpose of this study was to analyze the influence the experimental method combined with the virtual and real experiment-based guided inquiry learning model had on the physics learning outcomes. The research samples were class XI IPA 1 (32 people) for the experimental group and class XI IPA 2 (32 people) for the control group. In this study, the cluster sampling technique used was random sampling. Data collection techniques in research are in the form of learning outcomes test instruments at the beginning (pretest) and at the end of learning (posttest). The data analysis technique used is the normality test and the independent sample t-test. To test the research hypothesis, two similarity tests were used on average using the t test, namely the independent sample t-test or one-way analysis of variance (ANOVA) using the SPSS version 21 program. The result show that the guided inquiry learning model uses virtual laboratories and real laboratories to influence student learning outcomes (0.000 < 0.05). Based on the research results, it can be concluded that virtual and real experiments can improve students' physics learning outcomes, as evidenced by the difference in the average score of students' learning outcomes in the experimental class (87.47) compared to the control class (69.72).
PENERAPAN LMS (LEARNING MANAGEMENT SYSTEM) MOODLE TERHADAP HASIL BELAJAR IPA KELAS TINGGI MAHASISWA DI UNIVERSITAS QUALITY simbolon, dedi holden; Br PA, Rita Herlina; Sebayang, Karmila
JURNAL CURERE Vol 5, No 2 (2021): VOL 5 NO 2 Tahun 2021
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/jc.v5i2.658

Abstract

Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan media LMS (LearningManagement System) Moodle terhadap hasil belajar IPA Kelas Tinggi dan tingkat aktivitas mahasiswa. Sampel penelitian ditentukan dengan menggunakan teknik purposive sampling yaitu mahasiswa yang mengambil mata kuliah IPA Kelas Tinggi. Teknik pengumpulan data menggunakan instrumen tes hasil belajar dan observasi tingkat aktivitas. Dari analisa data diperoleh nilai rata-rata pretes mahasiswa sebesar 53.52 dan standar deviasi 10.338 dengan nilai tertinggi 65 dan terendah 30. Setelah materi diajarkan dari hasil postes diperoleh rata-rata sebesar 83.11 dan standar deviasinya 7.549 dengan nilai tertinggi 92 dan terendah 60. Kemudian nilai rata-rata tingkat aktivitas mahasiswa sebesar 76.63 dan standar deviasi 13.624 dengan nilai tertinggi 96 dan terendah 50. Dari hasil penelitian diperoleh kesimpulan bahwa penerapan media LMS (LearningManagement System) Moodle dalam pembelajaran memiliki dampak yang positif terhadap hasil belajar dan aktivitas mahasisw
IMPLEMENTASI PROJECT BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR BERBASIS E- LEARNING PADA MASA PANDEMI COVID 19 simbolon, Dedi Holden; Br PA, Rita Herlina; Mendrofa, Elmiyanda
JURNAL CURERE Vol 6, No 1 (2022): VOL 6 NO 1 Tahun 2022
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/jc.v6i1.744

Abstract

Masa pandemi Covid-19 mengharuskan pembelajaran dilaksanakan secara online dengan menggunakan berbagai model pembelajaran untuk mencapai tujuan pembelajaran.Sampel penelitian ditentukan dengan menggunakan teknik purposive sampling yaitu mahasiswa yang mengambil mata kuliah Konsep Dasar IPA. Teknik pengumpulan data menggunakan instrumen tes hasil belajar dan observasi tingkat aktivitas. Dari analisa data diperoleh nilai rata- rata pretes mahasiswa sebesar 53.52 dan standar deviasi 10.338 dengan nilai tertinggi 65 dan terendah 30. Setelah materi diajarkan dari hasil postes diperoleh rata-rata sebesar 83.11 dan standar deviasinya 7.549 dengan nilai tertinggi 90 dan terendah 60. Dari hasil penelitian diperoleh kesimpulan bahwa penerapan model pembelajaran  Project  Based  Learning  efektif digunakan pada saat pembelajaran daring.
PENGARUH MODEL PEMBELAJARAN PREDICT-OBSERVE-EXPLAINE (POE) TERHADAP HASIL BELAJAR IPA SD ADVENT 3 MEDAN Simbolon, Dedi Holden; Tambunan, Doni Douglas; Umangge, Iganus
Jurnal Ilmiah Aquinas Vol. 8 No. 1 (2025):, Januari 2025
Publisher : Unversitas Katolik Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to examine the effect of the Predict-Observe-Explain (POE) learning model on science learning outcomes of students at SD Advent 3 Medan. The research employed a quantitative approach using a quasi-experimental one-group pretest-posttest design. The sample consisted of 37 students selected through total sampling. The research instrument was a multiple-choice test comprising 25 questions, which had been previously validated and tested for reliability. Data analysis showed a significant improvement in students’ learning outcomes after the implementation of the POE model, with the average pretest score increasing from 28.00 to 57.41 in the posttest. A paired sample t-test yielded a significance value (p) of 0.000 (p < 0.05), indicating a statistically significant difference between pretest and posttest scores. The normalized gain score of 0.40 suggests a moderate level of effectiveness. These findings demonstrate that the POE model is effective in enhancing science learning outcomes and aligns with active, constructivist learning principles, supporting the “Merdeka Belajar” (Independent Learning) policy framework in Indonesia.
PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERINTEGRASI INKUIRI TERBIMBING PADA PELAJARAN KIMIA LARUTAN DI SMA KELAS XI UNTUK MENINGKATKAN HASIL BELAJAR KIMIA SISWA Silalahi, Eka Kartika; Simbolon, Dedi Holden
Jurnal Ilmiah Aquinas Vol. 8 No. 1 (2025):, Januari 2025
Publisher : Unversitas Katolik Santo Thomas

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Abstract

This study aims to analyze the effectiveness of the Problem-Based Learning (PBL) model integrated with Guided Inquiry in improving students' chemistry learning outcomes on the topic of solutions among 11th-grade senior high school students. The research was motivated by the low conceptual understanding and critical thinking skills among students, often attributed to the predominance of conventional teaching methods. A quantitative approach with a quasi-experimental design, specifically the non-equivalent control group design, was employed. The participants included two randomly selected classes from SMA Negeri 2 Pematang Siantar: one experimental class (n = 34) and one control class (n = 34). A learning achievement test was used as the main instrument, comprising pre-test and post-test items. The results showed that both groups experienced learning gains; however, the experimental class demonstrated a significantly higher gain score of 0.71 (high category), while the control class achieved a gain score of 0.58 (moderate category). An independent samples t-test revealed a significant difference between the two groups (p = 0.000 < 0.05), indicating that the integrated PBL and guided inquiry model had a substantial impact on students' learning outcomes. These findings suggest that the implementation of PBL integrated with guided inquiry is an effective pedagogical approach to enhance conceptual mastery and should be considered in the teaching of complex chemistry topics.
EFEK MEDIA PEMBELAJARAN VIRTUAL PHET TERHADAP HASIL BELAJAR IPA SISWA Simbolon, Dedi Holden; Pardede, Eni Yusnita Br; Perbina, Theresia; Manik, Alena Rosiana
Jurnal Ilmiah Aquinas Vol. 8 No.2 (2025):, Juli 2025
Publisher : Unversitas Katolik Santo Thomas

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Abstract

This study aims to examine the effect of using PhET Interactive Simulations as a virtual learning medium on students’ science learning outcomes in senior high school. A quasi-experimental method with a pretest-posttest control group design was employed. The sample consisted of two randomly selected Grade XI classes, one assigned as the experimental group (using PhET) and the other as the control group (using conventional instruction). The research instrument was an essay test comprising 10 items, which had been validated and tested for reliability (KR-20 = 0.78). Data were analyzed using the Shapiro-Wilk test for normality, Levene’s test for homogeneity, paired sample t-test, and independent sample t-test. The results showed a significant improvement in science learning outcomes for the experimental group, with an average pretest score of 28.00 increasing to 57.41 in the posttest. The paired t-test revealed a significance value of 0.000 (p < 0.05), and the normalized gain score was 0.40, indicating a moderate level of effectiveness. These findings suggest that the PhET-based virtual learning media effectively enhances students' conceptual understanding in science, supporting active, constructivist learning principles in line with the Indonesian "Merdeka Belajar" policy.
Digital Work Culture in the Era of Society 5.0: An Observational Case Study in the Higher Education Administrative Environment Simbolon, Dedi Holden
Indonesian Journal of Advanced Research Vol. 4 No. 9 (2025): September 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijar.v4i9.15406

Abstract

This study investigates the digital work culture within the administrative environment of Universitas Quality through an observational case study on the implementation of integrated systems including Q‑Enterprise, Q‑Layanan, Q‑Skripsi, Q‑Kinerja, Q‑Course, and Q‑Tracer. The findings indicate that these digital systems have significantly enhanced efficiency, transparency, and accountability in administrative workflows. However, challenges persist, particularly in the form of cultural resistance, limited two-way interaction, and low levels of engagement in self-directed learning. These findings highlight the critical importance of inclusive digital leadership, cross-generational digital literacy development, and reflective, data-driven evaluation mechanisms. The study recommends the advancement of adaptive and human-centered digital systems to support the transformation of organizational work culture in the context of Society 5.0.
Sosialisasi dan Pelatihan Teknologi Padi Rakit Apung, Hidroponik Pekarangan, Pupuk Organik Cair Berbasis Mikroorganisme pada Kelompok Tani Mbuah Page dan Karang Taruna Desa Lau Solu Nasution, Lita; Sembiring, Riduan; Simbolon, Dedi Holden; Lisnasari, Srie Faizah; Sianturi, Rivai Wulan Rejeki; Pa, Desi Adelia Br; Tarigan, Selvida Riahta Br; Yatantri, Shefia Ana
Journal of Community Research and Service Vol. 9 No. 2: July (2025)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v9i2.69990

Abstract

This community service program (PKM) aimed to strengthen the capacity of two partners—the Mbuah Page Farmers’ Group and the Youth Organization of Lau Solu Village—through outreach, training, hands-on implementation, and intensive mentoring on three appropriate technologies: floating rice rafts, backyard hydroponics, and the production of liquid organic fertilizer (LOF) based on local microorganisms. The methods included open outreach sessions, stepwise practical training, technology implementation on partners’ fields/yards, and weekly monitoring over three months using pre- and post-tests. Results show increased knowledge and skills among participants; a floating-raft prototype operated on flood-prone plots, an NFT (Nutrient Film Technique) backyard hydroponics system functioned as a demonstration unit, and household-scale LOF production became routine. Early impacts were observed in more efficient input use, greater availability of quick-harvest vegetables, and strengthened organizational governance within the Youth Organization. The program concluded with a sustainability plan comprising basic production kits for three cropping cycles, farm-business management training, and assistance in drafting proposals for support from the village government/BUMDes.
PENGARUH E-LEARNING BERBASIS LEARNING MANAGEMENT SYSTEM TERHADAP HASIL BELAJAR MAHASISWA Simbolon, Dedi Holden
CHEDS: Journal of Chemistry, Education, and Science Vol 6, No 1 (2022)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v6i1.5510

Abstract

E-learning merupakan peroses pembelajaran dengan memanfaatkan teknologi dalam proses pembelajaran yang dilakukan secara online. Tujuan penelitian ini adalah untuk mengetahui pengaruh penerapan e-learning terhadap hasil belajar Konsep Dasar IPA pada mahasiswa PGSD Universitas Quality. Penelitian ini merupakan penelitian quasi experiment dalam bentuk Pretes-postest control group design dengan teknik pengumpulan data berupa instrumen tes hasil belajar dalam bentuk soal essay test sebanyak 10 soal. Sampel yang digunakan dalam penelitian ini sebanyak 65 orang dimana kelas eksperimen sebanyak 33 orang dan kelas kontrol sebanyak 32 orang. Data yang terkumpul dianalisis dengan menggunakan statistik deskriptif. Dari hasil analisis statistik deskriptif menunjukkan bahwa rata-rata hasil belajar mahasiswa untuk pre test kelas eksperimen sebesar 55.48, dengan standar deviasi 8.296. Rata-rata hasil belajar mahasiswa pre tes untuk kelas kontrol sebesar 58,25 dengan standar deviasi 7.662. Untuk post tes rata-rata hasil belajar mahasiswa kelas eksperimen sebesar 82.69 dengan standar deviasi 8.608 dan rata-rata hasil belajar mahasiswa kelas kontrol sebesar 64.72 dengan standar deviasi 9.426. Secara signifikan, terdapat perbedaan yang hasil belajar mahasiswa pada mata kuliah Konsep Dasar IPA yang belajar dengan menggunakan bantuan media pembelajaran berbasis e-learning dibandingkan dengan pembelajaran konvensional.
Co-Authors Br PA, Rita Herlina Eka Kartika Silalahi Lisnasari, Srie Faizah Manik, Alena Rosiana Mendrofa, Elmiyanda Nasution, Lita Pa, Desi Adelia Br Pardede, Eni Yusnita Br Perbina, Theresia Sebayang, Karmila Sembiring, Riduan Sianturi, Rivai Wulan Rejeki Sitepu, Moria Pepayosa Br Tambunan, Doni Douglas Tarigan, Selvida Riahta br Umangge, Iganus Yatantri, Shefia Ana