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Pengaruh Model Pembelajaran PBL Berbasis Lesson Study terhadap Hasil Belajar Siswa Wowiling, Intania Kesita; Repi, Rudi A.; Taulu, Marthy I. S.
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13941

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning berbasis Lesson Study terhadap hasil belajar siswa pada pokok bahasan virus kelas X semester I SMA Negeri 1 Kauditan. Metode yang digunakan dalam penelitian ini menggunakan metode kuantitatif dengan jenis penelitian eksperimen. Desain penelitian menggunakan Pretest-Postest Control Group Design. Hasil penelitian menunjukkan hasil uji T yaitu dengan nilai Thitung = 11,424 > Ttabel = 2,00. Dengan demikian, H0 ditolak dan H1 diterima, yaiti adanya pengaruh model pembelajaran PBL berbasis Lesson Study terhadap hasil belajar siswa dibandingkan dengan pembelajaran konvensional pada kelas kontrol. Berdasarkan hasil tersebut, dapat disimpulkan bahwa model pembelajaran Problem Based Learning berbasis Lesson Study berpengaruh terhadap hasil belajar siswa pada materi virus dibandingkan pada kelas kontrol yang menggunakan pembelajaran konvensional.

Model Problem-Based Learning Berbasis Praktikum: Pengaruhnya terhadap Hasil Belajar Siswa Kelas VIII di SMP Negeri 2 Kotamobagu Makalalag, Salva Dafina; Repi, Rudi A.; Maramis, Alfonds A.
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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

Kurangnya pemanfaatan kegiatan praktikum dalam pembelajaran dan proses pembelajaran yang masih berpusat pada guru yang menyebabkan rendahnya hasil belajar siswa. Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar siswa kelas VIII di SMP Negeri 2 Kotamobagu melalui model problem-based learning (PBL) berbasis praktikum pada materi struktur tumbuhan. Penelitian ini dilaksanakan di SMP Negeri 2 Kotamobagu pada bulan Maret 2024, dengan menggunakan metode eksperimen semu (quasi eksperimen). Subjek dari penelitian ini adalah kelas VIII-1 sebagai kelas eksperimen dan kelas VIII-2 sebagai kelas kontrol. Kedua kelas akan diberikan tes hasil belajar berupa pre-test dan post-test. Berdasarkan hasil analisis data diperoleh hasil bahwa terdapat pengaruh model problem-based learning (PBL) terhadap hasil belajar siswa pada materi struktur tumbuhan di kelas VIII SMP Negeri 2 Kotamobagu. Hal ini didasarkan pada hasil uji t dengan menggunakan IBM SPSS for Windows jika nilai Sig. (2-tailed) < Alpha Penelitian (0,05), yaitu 0.045<0.05 maka H0 ditolak dan H1 diterima. Hal ini menunjukkan bahwa terdapat pengaruh penerapan model pembelajaran problem based learning (PBL) terhadap peningkatan hasil belajar siswa pada materi struktur rumbuhan di kelas VIII SMP Negeri 2 Kotamobagu.

THE EFFECT OF COMBINATION OF TURMERIC EXTRACT (Curcuma domestica Val.) AND HONEY ON GASTRIC ULCERS IN MICE (Mus musculus) DUE TO KETOPROFEN ADMINISTRATION MICROSCOPICALLY Sianturi, Novita Angraini; Repi, Rudi; Tengker, Anita C. C.
Indonesian Biodiversity Journal Vol. 6 No. 2 (2025): August 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/v1x5de96

Gastric ulcers are one of the common side effects that occur as a result of using non-steroidal anti-inflammatory drugs (NSAIDS) such as ketoprofen. The combination of turmeric extract (Curcuma domestica Val) and honey has the potential as an alternative therapy due to its antioxidant, anti-inflammatory, and cytoprotective properties. This research aims to evaluate the effects of the combination of these two substances on gastric ulcers in mice induced by ketoprofen microscopically. To determine the effect of a combination of turmeric extract and honey on the histopathological profile of stomach ulcers in mice (Mus musculus) induced by ketoprofen. This study used an experimental method with a completely randomized design. Mice were divided into several groups, namely the negative control group (without treatment), positive control (ketoprofen without therapy), and the treatment group that was given a combination of turmeric extract and honey with varying doses. Gastric ulcers are induced by administration of ketoprofen, followed by microscopic observation of gastric mucosal damage. The data was analyzed statistically to see significant differences between groups. Histopathological observations show that the group given a combination of turmeric extract and honey experienced a significant reduction in the level of gastric mucosal damage compared to the positive control group. The combination is capable of reducing inflammation, necrosis, and accelerating tissue regeneration. The combination of turmeric extract and honey is effective in reducing gastric ulcers in mice induced by ketoprofen microscopically. This research supports the potential use of both natural substances as adjuvant therapy to prevent or address gastric damage caused by NSAIDS.

THE EFFECT OF COMBINATION OF TURMERIC EXTRACT (Curcuma domestica Val.) AND HONEY ON GASTRIC ULCERS IN MICE (Mus musculus) DUE TO KETOPROFEN ADMINISTRATION MICROSCOPICALLY Sianturi, Novita Angraini; Repi, Rudi; Tengker, Anita C. C.
Indonesian Biodiversity Journal Vol. 6 No. 2 (2025): August 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/v1x5de96

Gastric ulcers are one of the common side effects that occur as a result of using non-steroidal anti-inflammatory drugs (NSAIDS) such as ketoprofen. The combination of turmeric extract (Curcuma domestica Val) and honey has the potential as an alternative therapy due to its antioxidant, anti-inflammatory, and cytoprotective properties. This research aims to evaluate the effects of the combination of these two substances on gastric ulcers in mice induced by ketoprofen microscopically. To determine the effect of a combination of turmeric extract and honey on the histopathological profile of stomach ulcers in mice (Mus musculus) induced by ketoprofen. This study used an experimental method with a completely randomized design. Mice were divided into several groups, namely the negative control group (without treatment), positive control (ketoprofen without therapy), and the treatment group that was given a combination of turmeric extract and honey with varying doses. Gastric ulcers are induced by administration of ketoprofen, followed by microscopic observation of gastric mucosal damage. The data was analyzed statistically to see significant differences between groups. Histopathological observations show that the group given a combination of turmeric extract and honey experienced a significant reduction in the level of gastric mucosal damage compared to the positive control group. The combination is capable of reducing inflammation, necrosis, and accelerating tissue regeneration. The combination of turmeric extract and honey is effective in reducing gastric ulcers in mice induced by ketoprofen microscopically. This research supports the potential use of both natural substances as adjuvant therapy to prevent or address gastric damage caused by NSAIDS.

PENGARUH MODEL PROBLEM BASED LEARNING DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI SISTEM EKSKRESI KELAS XI MIPA DI SMA NEGERI 1 MOTOLING TIMUR Kaligis, Brigita Jenifer; Repi, Rudi; Tumbel, Ferny Margo
Jurnal Wawasan Pendidikan Vol 6, No 2 (2026): AGUSTUS 2026
Publisher : Fakultas Ilmu Pendidikan, Universitas Persatuan Guru Republik Indonesia Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jwp.v6i2.25805

This study investigated the extent to which the Problem-Based Learning (PBL) model enhances students’ academic performance on the Excretory System topic among 11th-grade learners at SMA Negeri 1 Motoling Timur. A quasi-experimental approach employing a Non-Equivalent Control Group design was utilized, involving two intact classes designated as the experimental and control groups. All 32 students from the 11th-grade science class were included as participants using a total sampling technique. Quantitative analysis revealed that the implementation of the PBL model significantly improved student learning outcomes. The superiority of the experimental group’s scores over those of the control group demonstrates that PBL is more effective than traditional instructional methods.

Penerapan Problem Based Learning untuk Meningkatkan Aktivitas dan Hasil Belajar Biologi Siswa SMA Maria Naya Waani; Rudi A. Repi; Ferny M. Tumbel
Jurnal Cakrawala Pendidikan dan Biologi Vol. 3 No. 1 (2026): Maret: Jurnal Cakrawala Pendidikan dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jucapenbi.v2i3.689

This classroom action research evaluates the effectiveness of Problem Based Learning in learning Biology on the topic of environmental change at Rosa de Lima Catholic High School Tondano, with the aim of improving the activities and learning outcomes of grade X students. The method used is two action cycles with stages of planning, implementation, observation, and reflection. The subjects are 10 students. Tools include Teaching Modules and Student Worksheets; Data was collected through observation sheets of teacher and student activities (scales 1–4) and 10-item learning outcome tests each cycle. The descriptive analysis calculates the grade average and classical completeness against the Minimum Completeness Criterion of 75. The results showed consistent improvement from cycle I to cycle II. Classical completeness increased from 66% (6 out of 9 students attended; average 76.67) to 90% (9 out of 10 students; average 81.00). The teacher's activity observation score increased from 3.75 to 3.91, while the student's activity from 3.50 to 3.60. The increase is fueled by the formulation of contextual problems, facilitation of guiding questions, individualized feedback, and more disciplined time management, which strengthens engagement, collaboration, and scientific reasoning. The findings indicate that Problem Based Learning is effective in improving Biology learning activities and outcomes on the topic of environmental change. This study adds to the empirical evidence in the context of high schools with low initial completeness and suggests further exploration of other Biology topics along with measurements of critical thinking skills and scientific attitudes for a more comprehensive picture of impact.

Karakter Performa Pertumbuhan Ayam Daging (Gallus domesticus) yang disuplementasi Debris Daluga (Cyrtosperma merkusii) Moko, Emma Mauren; Wullus, Reffie; Repi, Rudi Alexander; Rawung, Livana Dethris; Rahardiyan, Dino; Wantania, Johanna Zusye; Rampengan , Mercy Maggy Franky
JURNAL BIOS LOGOS Vol. 14 No. 2 (2024): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v14i2.54321

In order to enhance the growth of gallus domesticus broiler chickens, sythetic and natural supplemantion are commonly added to the feed. This study was conducted to understand the impact of adding daluga (Cyrtosperma merkusii) starch processing debris (residuals) as supplements to the current feed towards the growth performances of the broilers. 60 one day old unisexed broiler Chickens were used in this study. The experiments carried out was conducted with a Completely Randomized Design (CRD) with 4 treatments and 3 replications. Feeding regiments were arranged with supplements of 0%, 0,065%, 0,13%, and 0,26% daluga debris. Observation was conducted for 45 days, and records of weight gain, final weight, cumulative consumption, and feed conversions were taken weekly. Results indicated that daluga debris supplementation (p<0,05) significantly effected the growth performances. Supplementation at 0,065% appeared to show the most optimum performance

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