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All Journal Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pendidikan Kimia Universitas Riau Jurnal Pendidikan Kimia (JPKim) JCRS (Journal of Community Research and Service) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) CHEDS: Journal of Chemistry, Education, and Science Educenter: Jurnal Ilmiah Pendidikan International Journal of Health and Pharmaceutical (IJHP) Edukasi EDUCENTER JURNAL PENDIDIKAN
Damanik, Marini
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Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Nursing Public Health Social Sciences Other

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Development of a Chemistry E-Module Based on a Problem Based Learning Model on Reaction Rate Material Tambunan, Kasandra Louisa; Damanik, Marini
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 2 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

Abstract: Development of a Chemistry E-Module Based on a Problem Based Learning Model on Reaction Rate Material. This research uses the 4D model Research and Development (R&D) method starting from the definition, design, development and distribution stages. The research was limited to the development stage, namely determining the level of validity and small-scale trials to see responses from teachers and students at SMA Negeri 1 Percut Sei Tuan.  The product that will be produced is a chemistry e-module based on Problem Based Learning which contains a review of reaction rate material. Data collection used validation questionnaires and teacher and student response questionnaires.The validation assessment involved five expert validators including two media expert validators and three material expert validators. The media expert assessment was 87.8% which met very valid criteria and the material expert assessment was 80.5% with very valid criteria. Therefore, the rate e-module using the problem based learning model is suitable for use in the learning process. The teacher practicality test was carried out and a result of 98% was obtained which met the very practical criteria. The results of 32 students' responses to the e-module were 82.9% with strongly agree criteria. It was concluded that the Chemistry E-Module based on the Problem Based Learning Model on Reaction Rate Material could increase students' motivation in learning. Keywords: E-Module; Reaction rate; Problem Based Learning. 
PRESERVATION BY SOCIALIZING THE BENEFITS AND NUTRITIONAL CONTENT OF SIMALUNGUN TYPICAL SAUCES TO WOMEN’S ORGANIZATION OF SIMALUNGUN CENTRAL BUREAU OF STATISTICS Damanik, Marini
Journal of Community Research and Service Vol 6, No 1: January 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v6i1.29512

Abstract

Preservation of  Simalungun's typical sauce to the women’s organization of Simalungun Central Bureau of Statistics by the Medan State University Research and Service Center, namely tinuktuk sauce, have been carried out by socializing the benefits and contents of which have been carried out online. Preserving this tinuktuk sauce as a form of community service has already been done by the Universita Negeri Medan community research and service center. It is implemented by socializing the benefits and nutritional content of tinuktuk. In the webinar, not only the introduction of the Simalungun tinuktuk sauce, but also the nutritional content and benefits of the tinuktuk sauce were also socialized. This is also related to the importance of nutritional needs to increase body immunity during the COVID-19 period. In the process of socializing efforts to preserve the benefits and nutritional content of Simalungun's special sauce, there was a significant difference in result between the pre-test and post-test, namely in the pre-test 43% and post-test 84%, and this indicates that participants know the benefits and nutritional content of Simalungun’s typical tinuktuk sauce. This community service activity went smoothly because the participant already knew about the nutritional content and benefits of Simalungun’s typical tinuktuk sauce and it’s hoped that the tinuktuk sauce can be preserved.
PELATIHAN PENGEMBANGAN KEWIRAUSAHAAN DALAM RANGKA PENINGKATAN INCOME GENERATE DENGAN PEMBUATAN INSTALASI TANAMAN HIDROPONIK DI DHARMA WANITA BADAN PUSAT STATISTIK SERDANG BEDAGAI Damanik, Marini; Riris, Ida Duma; Nasution, Zuhairiah; Nasution, Marnida Yusfiani; Pulungan, Ahmad Shafwan; Dewi, Ratna Sari; ,, Serimawarni; Sitorus, Rosa Nadya Evelyn; Pratiwi, Meidy Citra; Safruddin, Muhammad Sultan; Saputra, Ardi Maulanna
Journal of Community Research and Service Vol 8, No 2: JULY 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v8i2.62225

Abstract

Pemanfaatan lahan yang ada dimanfaatkan oleh Dharma Wanita dan Mitra Badan Pusat Statistik (BPS) Serdang Bedagai. Pemanfaatan lahan perlu disesuaikan dengan kebutuhan pangan semakin meningkat. Dengan begitu pemanfaatan lahan terutama lahan kosong maupun perkarangan rumah terus diupayakan untuk memenuhi kebutuhan pangan keluarga dan peningkatan perekonomian. Tim pengabdian masyarakat Universitas Negeri Medan mengupayakan sosialisasi terkait penanaman hidroponik berupa pakcoy dan selada air dengan beberapa tahap yaitu penyampaian materi terkait keunggulan dan manfaat tanaman hidroponik, praktek lapangan secara langsung mengenai penanaman tanaman hidroponik serta ternak lele untuk memanfaatkan saluran air di sekeliling BPS Serdang Bedagai. Alat berupa instalasi hidroponik serta bahan dasar yang dibutuhkan juga diberikan kepada mitra untuk pemanfaatan di perkarangan mitra serta keberlanjutan secara mandiri sehingga dapat meningkatkan perekonomian mitra.
PENGARUH METODE READING TO LEARN (R2L) DAN PEMBUATAN RANGKUMAN TERHADAP HASIL BELAJAR SISWA DAN KEMAMPUAN LITERASI KIMIA SISWA PADA MATERI ASAM BASA Nababan, Putri Febriani; Damanik, Marini
CHEDS: Journal of Chemistry, Education, and Science Vol 9, No 1 (2025)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v9i1.11245

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh metode Reading to Learn dan summary terhadap hasil belajar dan keterampilan literasi kimia siswa. Populasi penelitian adalah seluruh siswa kelas XI SMA Negeri 1 Percut Sei Tuan, dengan sampel kelas XI Matlangraf sebanyak 35 siswa, dipilih dengan teknik probability sampling. Desain penelitian yang digunakan adalah One Group Pretest-Posttest Design. Instrumen berupa soal pilihan ganda untuk hasil belajar dan soal uraian untuk literasi kimia yang tervalidasi. Analisis data menggunakan uji korelasi Pearson dan korelasi ganda. Hasil penelitian menunjukkan bahwa metode Reading to Learn berpengaruh terhadap literasi kimia (signifikansi 0,008; koefisien korelasi 0,441). Summary tidak berpengaruh terhadap hasil belajar (signifikansi 0,142; koefisien korelasi 0,253). Secara simultan, Reading to Learn dan summary berpengaruh terhadap literasi kimia (Sig. F Change 0,026), tetapi tidak berpengaruh terhadap hasil belajar (Sig. F Change 0,336).
PENGARUH MODEL PEMBELAJARAN INKUIRI TERBIMBING DENGAN PENDEKATAN MULTIPLE INTELLIGENCES TERHADAP HASIL BELAJAR SISWA PADA MATERI ASAM BASA Simbolon, Endang Ristauli Br; Damanik, Marini
CHEDS: Journal of Chemistry, Education, and Science Vol 9, No 1 (2025)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v9i1.11038

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran inkuiri terbimbing yang dipadukan dengan pendekatan kecerdasan majemuk terhadap hasil belajar siswa pada pokok bahasan asam basa. Metode penelitian yang digunakan adalah quasi eksperimen dengan rancangan one group pretest-posttest design. Sampel penelitian sebanyak satu kelas siswa kelas XI SMA Negeri 11 Medan. Instrumen penelitian berupa tes hasil belajar dan lembar observasi kecerdasan majemuk. Hasil penelitian menunjukkan bahwa model pembelajaran inkuiri terbimbing yang dipadukan dengan pendekatan kecerdasan majemuk berpengaruh positif dan signifikan terhadap peningkatan hasil belajar siswa. Temuan tersebut menunjukkan bahwa perpaduan pendekatan tersebut efektif dalam meningkatkan pemahaman siswa terhadap konsep asam basa. Oleh karena itu, model pembelajaran ini direkomendasikan untuk digunakan dalam pembelajaran kimia guna meningkatkan prestasi belajar siswa.
Pengembangan Media Pembelajaran Video Berbasis Aplikasi Canva Terintegrasi Model Pembelajaran PBL pada Materi Larutan Penyangga Maharani , Vira; Damanik, Marini; Muchtar, Zainuddin; Yusuf, Muhammad; Amdayani, Susilawati
Jurnal Pendidikan Kimia Universitas Riau Vol. 10 No. 1 (2025): Januari: Jurnal Pendidikan Kimia Universitas Riau
Publisher : Program Studi Pendidikan Kimia, FKIP, Universitas Riau

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Abstract

Penelitian ini bertujuan untuk : 1. Mengetahui kelayakan media pembelajaran video berbasis aplikasi Canva terintegrasi model pembelajaran PBL, 2. Mengetahui kepraktisan media pembelajaran video bagi guru di SMA Budi Agung Medan, dan 3. Mengetahui bagaimana respons siswa kelas XI di SMA Budi Agung Medan terhadap media pembelajaran video yang telah dikembangkan. Metode penelitian yang digunakan ialah penelitian dan pengembangan (R&D), dan model pengembangan 4D digunakan untuk menguji efektivitas produk tersebut. Populasi dalam penelitian ini adalah seluruh kelas XI IPA di SMA Budi Agung Medan, dan sampel yang digunakan adalah sekitar 41 siswa kelas XI IPA kelas Ustman bin Affan. Hasil validasi ahli materi terhadap media pembelajaran video menghasilkan nilai persentase rata-rata sebesar 78% dengan kriteria cukup valid, sedangkan hasil validasi ahli media menghasilkan nilai persentase rata-rata sebesar 94% dengan kriteria sangat valid. Hasil uji kepraktisan oleh guru menghasilkan nilai persentase rata-rata sebesar 91% dengan kriteria sangat praktis. Hasil angket respons siswa terhadap media pembelajaran video menghasilkan nilai persentase rata-rata sebesar 84% dengan kriteria menarik.
PENERAPAN TEKNOLOGI MESIN PENCAMPUR PAKAN TERNAK RUMINANSIA UNTUK MENINGKATKAN KUALITAS SUSU KAMBING PERAH DALAM UPAYA PENCEGAHAN STUNTING DI DESA PASAR BARU KECAMATAN TELUK MENGKUDU KABUPATEN SERDANG BERDAGAI Damanik, Marini; Koto, Indra; Pratiwi, Alfira Julian; Sari, Sri Adelila; Ridho, Dimas; Riris, Ida Duma; Dewi, Ratna Sari; Kurniawan, Ekin Dwi Arif
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 31 No. 3 (2025): JULI-SEPTEMBER
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v31i3.67759

Abstract

Peningkatan kualitas pakan ternak ruminansia menjadi salah satu faktor penting dalam mendukung produktivitas susu kambing perah, yang secara tidak langsung berkontribusi dalam dunia kesehatan sebagai upaya pencegahan stunting melalui pemenuhan gizi keluarga. Namun, mitra peternak di Desa Pasar Baru, Kecamatan Teluk Mengkudu, Kabupaten Serdang Bedagai masih menghadapi kendala dalam proses pencampuran pakan secara manual yang memakan waktu lama dan menghasilkan pakan yang tidak homogen. Kegiatan pengabdian ini bertujuan untuk memberikan solusi melalui penerapan teknologi tepat guna berupa mesin pencampur pakan serta pelatihan manajemen usaha. Metode yang digunakan meliputi pendidikan, pelatihan, dan praktik langsung. Hasil kegiatan menunjukkan bahwa mitra mengalami peningkatan efisiensi kerja, dengan waktu pencampuran pakan yang berkurang signifikan, serta peningkatan homogenitas pakan yang berdampak positif terhadap kualitas dan kuantitas susu kambing. Selain itu, pelatihan pengemasan dan pemasaran turut mendukung penguatan aspek kewirausahaan mitra. Kegiatan ini memberikan dampak nyata dan berkelanjutan dalam peningkatan produktivitas ternak serta ekonomi rumah tangga peternak.
The Effect of CTL Assisted e-LKPD on Increasing Students' Motivation and Learning Outcomes Maulidza, Rahmi; Damanik, Marini
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 5 No. 2 (2023): OCTOBER 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i2.48741

Abstract

The purpose of this study was to determine the effect of e-LKPD assisted CTL learning on student motivation and learning outcomes. Samples were taken by purposive sampling as many as 2 classes, namely experimental classes and control classes. The instruments used were multiple choice tests and motivation questionnaires. Data on student learning outcomes and motivation were analyzed by right-side t-test and correlation test. Correlation test to see the relationship between learning motivation and learning outcomes. The results of the cognitive t-test obtained tcount > ttable (3.401> 1.668) which shows Ho is rejected and Ha is accepted, meaning that there is an effect of the CTL learning model assisted by e-LKPD on the learning outcomes of students on acid-base material. The t-test results of learning motivation obtained tcount> ttable (2.191> 1.668) which shows Ho is rejected and Ha is accepted, meaning that there is an effect of CTL learning assisted by e-LKPD on student learning motivation. The correlation results obtained tcount> ttable (0.495> 0.339) indicate that student learning motivation is positively and significantly correlated with student learning outcomes using CTL learning assisted by e-LKPD.
The quality of tinuktuk in the frozen temperature storage Damanik, Marini; Riris, Ida Duma; Susanti, Nora; Ramadhaniyah, Nurul; Rinanda, Jihan Afstria
Jurnal Pendidikan Kimia Vol. 16 No. 1 (2024): April
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkim.v16i1.55861

Abstract

Tinuktuk is considered nutritious and able to boost immunity. A local product based on natural resources and spices in Indonesia. The different concentrations of the main ingredients used in the production of tinuktuk produce good quality and nutrition for safe, healthy, and nutritious consumption. So far, there is no optimum composition of tinuktuk and also quality analysis during the storage period in the frozen temperature of tinuktuk, so this research is necessary. In this research, the roasting method is used for the drying process of making tinuktuk. The roasting process is one of the isothermal drying processes. The purpose of this study was to determine the quality characteristics of tinuktuk during storage at -10°C for 56 days which is analyzed every 7 days. Tinuktuk characteristic parameters include pH, moisture content, ash content, and microbial analysis. The results of the research that have been carried out are 30%: 70% and 40%: 60%, which have similarities with the results of the analysis of tinuktuk that has been marketed, namely the 30%: 70% ratio, wherein the 30%: 70% ratio the pH analysis decreases steadily from 6.3 to 5.9. Ash content analysis resulted in a stable decrease from 7% to 5%. Microbial analysis with ALT testing resulted in stable data during storage at 2.5 x 102 colonies/g. Antioxidant analysis of 30%:70% ratio resulted in antioxidant IC50 data of 93, 4 ppm to 183.6 ppm.
Pengaruh model pembelajaran inkuiri terbimbing dan media powerpoint berbasis hyperlink terhadap hasil belajar siswa pada materi larutan elektrolit dan nonelektrolit Barus, Putri Carolin; Damanik, Marini; Safitri, Rahma
Educenter : Jurnal Ilmiah Pendidikan Vol. 1 No. 5 (2022): Educenter : Jurnal Ilmiah Pendidikan
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/educenter.v1i5.174

Abstract

This research aims to: (1) find out whether the increase in student learning outcomes taught using the guided inquiry learning model and hyperlink-based PowerPoint media is higher than the increase in student learning outcomes taught using the conventional model and hyperlink-based PowerPoint media. (2) determine students' responses to the guided inquiry learning model and hyperlink-based PowerPoint media. The population in this study were all students of class X MIPA MAS PAB 1 Sampali. The sample in this study was taken using total sampling. Samples were taken from 2 classes, namely the Experiment class and the Control class. The results of the hypothesis in this research using the one-party t test, obtained a value of tcount that is greater than ttable. So Ha is accepted which shows that the increase in student learning outcomes taught with the guided inquiry learning model and hyperlink-based PowerPoint media is higher than the increase in student learning outcomes taught with the conventional model and hyperlink-based PowerPoint media. The N-gain experimental class is greater than control class and students' responses to this learning model are categorized as good. It can be concluded that the guided inquiry learning model and hyperlink-based PowerPoint media influence student learning outcomes.
Co-Authors ,, Serimawarni Amdayani, Susilawati Aulia Surbakti, Tia Ayuni, Syarifah Barus, Putri Carolin Batumahadi, Batumahadi Dimas Ridho Eswanto, Eswanto Ida Duma Riris Indra Koto Jubaidah, Jubaidah Kurniawan, Ekin Dwi Arif Maharani , Vira Maulidza, Rahmi Melvi, Lisa Muhammad Yusuf Nababan, Putri Febriani Nasution, Marnida Yusfiani Nasution, Nurjamiah Nora Susanti Pakpahan, Binsar Permatasari, Tyas Pratiwi, Alfira Julian Pratiwi, Meidy Citra Pulungan, Ahmad Shafwan Rahma Safitri Ramadhaniyah, Nurul Ratna Sari Dewi Ratna Sari Dewi Rinanda, Jihan Afstria Risti Rosmiati Safruddin, Muhammad Sultan Saputra, Ardi Maulanna Selamat Riadi Simbolon, Endang Ristauli Br Sitorus, Rosa Nadya Evelyn Sri Adelila Sari Suprapto Suprapto Surya Dharma Tambunan, Kasandra Louisa Zainuddin Muchtar Zuhairiah Nasution, Zuhairiah