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All Journal Jurnal Tadris Kimiya J-PEK (JURNAL PEMBELAJARAN KIMIA) BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL MUQODDIMAH : Jurnal Ilmu Sosial, Politik dan Hummaniora EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi Martabe : Jurnal Pengabdian Kepada Masyarakat Al-Muaddib : Jurnal Ilmu-Ilmu Sosial & Keislaman RISTEKDIK : Jurnal Bimbingan dan Konseling CHEDS: Journal of Chemistry, Education, and Science Jurnal Ilmiah Kampus Mengajar Amare Marpokat: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat SAPANGAMBEI MANOKTOK HITEI
Heni Mulyani Pohan
Universitas Muhammadiyah Tapanuli Selatan
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Other

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TINGKAT KREATIVITAS MAHASISWA MENGIDENTIFIKASI MERKURI (HG) PADA KRIM PEMUTIH WAJAH TIDAK TERDAFTAR BERBASIS PjBL (PROJECT BASED LEARNING) Pohan, Heni Mulyani; Elisa, Elisa; Rajab, M.
CHEDS: Journal of Chemistry, Education, and Science Vol 5, No 2 (2021)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.97 KB) | DOI: 10.30743/cheds.v5i2.4809

Abstract

Kreativitas dalam proses pembelajaran merupakan salah satu soft skill yang perlu dikembangkan dalam memecahkan masalah pembelajaran maupun menghadapi dunia kerja di masa depan. Pembelajaran dengan pendekatan Project  Based Learning  menjadi salah satu pendekatan pembelajaran yang membangun kreativitas mahasiswa. Tujuan penelitian adalah adalah untuk mengetahui tingkat kreativitas mahasiswa dalam mengidentifikasi merkuri pada krim pemutih wajah tidak terdaftar berbasis Project Based Learning. Penelitian ini menggunakan metode eksperimen, dengan menggunakan kelas kontrol dan eksperimen. Hasil analisis data diperoleh tingkat kreativitas mahasiswa berdasarkan indikator (fluency of thinking, flexibility, elaboration dan originality) pada kelas kontrol dengan rata-rata 58% dengan kategori cukup kreatif dan pada kelas eksperimen dengan rata-rata 78,75% dengan kategori kreatif . Persentase kreativitas pada kelas kontrol sebesar 52% dengan kategori kurang kreatif dan pada kelas eksperimen dengan persentase 73% dengan kategori kreatif. Hasil simpulan bahwa pembelajaran menggunakan pendekatan Project  Based Learning dapat meningkatkan kreativitas mahasiswa.
ANALYSIS OF MINERAL CONTENT IN ZAM-ZAM WATER CIRCULATION IN PADANGSIDIMPUAN CITY Harahap, Fatma Suryani; Pohan, Heni Mulyani; Siregar, Rabiyatul Adawiyah; Elisa, Elisa; Lubis, Jalilah Azizah; Latifah, Nur
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v10i2.10933

Abstract

This research was motivated by the existence of Zam-zam water trade in Padangsidimpuan City, while the Saudi Arabian government prohibited the export of Zam-zam water. This causes people to suspect that the quality of Zam-zam water circulating in the market is not the same as the Zam-zam water found in Mecca. Therefore, research needs to be carried out to answer these concerns. This research aims to analyze the mineral content of labeled packaged Zam-zam water circulating in Padangsidimpuan City compared with Zam-zam water brought from Mecca City. The mineral concentrations tested were sodium and chloride. This research uses laboratory experimental methods, including quantitative analysis. According to the type of research, the data analysis technique used is to compare the concentration of each mineral in the water labeled Zam-zam with the mineral concentration in the Zam-zam water used as a control. The research results showed that Zam-zam water obtained from Mecca City contained 42.4 mg/L chloride, 2.06 mg/L sodium, while the labeled Zam-zam water circulating in Padangsidimpuan, namely sample 1, contained 160.7 mg/L chloride. sodium 2.06 mg/L in sample 2 contains 50.5 mg/L chloride, sodium 2.17 mg/L. The three Zam-Zam samples circulating in Padangsidimpuan that have been tested show that the quality of Zam-Zam water is suitable for consumption based on determining a good water quality test, namely at the suitability threshold.
MENJELAJAHI DUNIA REDOKS DENGAN REACT: PENDEKATAN PEMBELAJARAN INOVATIF TERHADAP HASIL BELAJAR SISWA SMA Pohan, Heni Mulyani; Harahap, Fatma Suryani; Siregar, Rabiatul Adawiyah; Lubis, Fitri Agustina; Sahara, Nur; Junita, Hafni; Ritonga, Siti Nurzainab
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 9, No 2 (2024): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v9i2.299–306

Abstract

The birth of the REACT Model was initiated by CORD in the United States. This learning approach includes five learning principles which include the relationship between concepts (Relating), direct experience (Experiencing), application in real situations (Appliying), cooperation between students (Cooperating) and transfer of learning to other situations (Transferring). This learning approach makes it easier for students to understand and master redox reaction material. The aim of the research is that it is hoped that through this research, it will be possible to find out to what extent the REACT learning model contributes to improving student learning outcomes in understanding the concept of redox reactions. This study is a quantitative study. The sampling method for this study is random sampling. Collect data through learning outcomes tests. In the experimental class the average score obtained after implementing the REACT learning model was 73.33 and 60.33 in the control class and the results of the independent t test using SPSS obtained a sig value of 0.025 0.05 which shows that the REACT learning model can improve results. Study.
PENERAPAN TEKNIK PROBING DAN PROMPTING TERHADAP RASA INGIN TAHU DAN HASIL BELAJAR SISWA PADA MATERI REAKSI REDUKSI OKSIDASI BERBANTU GOOGLE FORM PADA MASA PANDEMI COVID 19 DI SMA NEGERI 4 PADANGSIDIMPUAN Harahap, Fatma Suryani; Pohan, Heni Mulyani; Elisa, Elisa; Siregar, Rabiyatul Adawiyah; Sahara, Nur; Siregar, Nurkholidah; Tuah, Sahlan
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 9, No 1 (2024): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v9i1.34-39

Abstract

The application of probing and prompting techniques is the application of science and technology by conducting investigations or examinations by relating questions in the form of cause and effect aimed at encouraging or guiding the achievement of satisfactory learning outcomes. The application of probing and prompting techniques as a source of independent learning because it requires the involvement of students in exploring and guiding learning. The application of probing and prompting techniques is expected to make students more interactive in learning. So that student curiosity can increase in accordance with the expected learning objectives. This research was motivated because probing and prompting techniques had never been applied at SMA Negeri 4 Padangsidimpuan. This study aims to determine whether there is an influence of the application of probing and prompting techniques on students' curiosity and learning outcomes on oxidation reduction reaction material in class X MIA SMA Negeri 4 Padangsidimpuan. The data on the curiosity test of students in the experimental class was with an average of 49.37 and in the control class was with an average of 49.17, so students' curiosity was higher in the experimental class. Then classes that used Probing and Promting techniques obtained an average learning outcome test of 36.47 to 79, so there was an increase.
Effectiveness of the Index Card Match (ICM) Method in Improving Science Learning Outcomes of Student at Ban Eyoh School Thailand Heni Mulyani Pohan; Fatma Suryani Harahap; Hotrina Sitompul; Jalilah Azizah Lubis; Nur Sahara
Jurnal Penelitian Pendidikan IPA Vol 11 No 12 (2025): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i12.13493

Abstract

This study aims to analyze the effectiveness of applying the Index Card Match (ICM) method in improving science learning outcomes of students at Ban Eyoh School in Thailand. This study uses a quantitative experimental research design with a Quasi-Experimental Design approach. Data were collected through pretest and posttest administered before and after the implementation of the ICM method. Statistical analysis showed a significant difference between the experimental and control classes, with a sig. value of 0.001 (< 0.05). The average posttest score of the experimental (80.61) was 10.31 points higher than that of the control (70.30). This effectiveness was reinforced by the N-Gain Score of “quite effective” (56%) for ICM, while the control class was “ineffective” (39%). The effectiveness of the ICM learning model is also demonstrated by: 1) A statistically significant difference between the learning outcomes of the experimental group (ICM) and the control group (conventional), 2) A higher posttest average score for the experimental group compared to the control group, and 3) The learning effectiveness level (N-Gain Score) in the experimental class was categorized as “quite effective”, while the control class was “ineffective”. Therefore, ICM can be recommended as an alternative innovative learning model, especially in the context of science learning in a challenging
AAS-Based Multi-Media Diagnostic Approach for Evaluating Heavy Metal Contamination in the Batang Ayumi River Within the Batu Bola Landfill Influence Zone Fatma Suryani Harahap; Nurmaini Ginting; Heni Mulyani Pohan; Benny Sofyan Samosir
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.14017

Abstract

This study applies an integrated multi-media approach (river water–sediment–shallow groundwater) to assess heavy metal contamination (Pb, Cu, Cd, Fe, and Hg) along the Batang Ayumi River within the influence zone of the active Batu Bola landfill, a setting rarely evaluated in an integrated manner. Samples were collected from four stations (upstream control to downstream) and analyzed using atomic absorption spectrophotometry (AAS). Fe and Pb emerged as the most responsive indicators of landfill influence: Fe increased downstream and was reflected by accumulation in sediments, while Pb showed greater mobility in river water and nearby wells, suggesting transfer from surface transport to shallow groundwater. Cu peaked upstream, whereas Cd and Hg were relatively stable but detectable across media. Although concentrations remained below applicable standards, the spatial patterns indicate persistent environmental pressure that could intensify without improved controls. By integrating evidence across water, sediment, and groundwater, this study clarifies plausible heavy-metal migration pathways from landfill leachate—surface-water transport, sediment retention, and infiltration toward shallow aquifers—supporting targeted leachate management and long-term multi-media monitoring.
Edukasi Pengelolaan Sampah Rumah Tangga Di Kelurahan Aek Parmbunan Kota Sibolga Elisa; Ainun Mardiyah; Happy Sri Rezeki; Heni Mulyani Pohan
Jurnal Pengabdian Masyarakat Sapangambei Manoktok Hitei Vol. 4 No. 1 (2024): Jurnal Pengabdian Masyarakat SAPANGAMBEI MANOKTOK HITEI
Publisher : Universitas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36985/em064212

Abstract

Permasalahan sampah terjadi hampir di seluruh tempat di dunia yang diakibatkan oleh kegiatan produksi dan konsumsi yang dilakukan oleh manusia. Penerapan konsep 3R (reduce, reuse, dan recycle) dapat mengurangi volume sampah dan memberikan nilai tambah bagi masyarakat. Sampah organik dapat dikumpulkan dan diolah menjadi pupuk kompos, pakan ternak, hingga menjadi biogas. Sedangkan sampah non organik dapat didaur ulang atau dijadikan bahan untuk kerajinan. Sosialisasi dan edukasi kepada masyarakat sangat diperlukan guna memberikan pemahaman untuk mengelola dan mengolah sampah dengan baik. Sosialisasi dan edukasi kepada masyarakat yang dilaksanakan meliputi pembuatan media berupa brosur, pamflet, dan poster tentang pengelolaan sampah dan memberikan penyuluhan kepada kelompok masyarakat, mengajak masyarakat memilah sampah ke dalam beberapa jenis sampah, dan penyediaan tempat sampah yang berbeda untuk sampah organik dan non-organik yang diserahkan kepada ketua kelompok. Dari kegiatan yang dilakukan bersama warga di Kelurahan Aek Parombunan mendapatkan hasil bahwa edukasi pemilahan sampah sangat diperlukan dan kesadaran mengenai pemisahan sampah organik dan anorganik harus dimulai dari lingkungan keluarga. Pemberian sarana tempat sampah yang dapat memisahkan sampah organik dan non-organik mampu menimbulkan kebiasaan memilah sampah dan membangun kesadaran memproses pengolahan sampah organik
Co-Authors Abdul Hasan Saragih Ade Isma Hasibuan Adelina, Putri Adi Syaputra Ainun Mardiyah Ainun Mardiyah Ainun Mardiyah Lubis Alfiansyah Halomoan Siregar Andes Fuady Dharma Harahap Asmaryadi Asmaryadi Ayunda Sabrina Sormin Ayunda Sabrina Sormin Ayunda Sabrina Sormin, Ayunda Sabrina Bandaharo Saefuddin Benny Sofyan Samosir Djoko Widodo Elisa Elisa Elisa Elisa Elisa Elisa Elisa Fatma Suryani Fatma Suryani Harahap Fitri Agustina Lubis Fitriani Fitriani Hafni Junita Harahap Hafni Junita Harahap Happy Sri Rezeki Happy Sri Rezeki Happy Sri Rezeki Harun Sitompul Hotrina Sitompul Hrp, Hafnita Jalilah Azizah Jalilah Azizah Lubis Jessica Linda Mora Junita, Hafni LAILA TUSSIFAH LUBIS Mabrouk, Anouar Ben Melvariani Syari Batubara Muhammad Rusdi Mutiara Lubis Nasirsah Nur Latifah, Nur Nur Sahara Nur Sahara Nurkholidah Siregar Nurmaini Ginting Nurmi, Aisyah Nurwijayanti Paisal Hamid Marpaung Rabiyatul Adawiyah Siregar Rabiyatul Adawiyah Siregar Rajab Ansari Rajab, M. Riski Baroroh Ritonga, Siti Nurzainab Sahlan Tuah Sari, Eny Maya Siregar, Irmalia Fitri Siregar, Nurkholidah Siregar, Rabiatul Adawiyah Syaputra, Adi Tobroni Tobroni Wiwik Novitasari Yunita, Dinda