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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pengajaran MIPA Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Jurnal Inovasi Pendidikan IPA Jurnal Penelitian Pendidikan IPA (JPPIPA) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan GERVASI: Jurnal Pengabdian kepada Masyarakat PROSIDING SEMINAR NASIONAL LEMBAGA PENELITIAN DAN PENDIDIKAN (LPP) MANDALA Hydrogen: Jurnal Kependidikan Kimia Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Lensa : Jurnal Kependidikan Fisika Abdihaz: Jurnal Ilmiah Pengabdian pada Masyarakat ABSYARA: Jurnal Pengabdian Pada Masyarakat Hydrogen: Jurnal Kependidikan Kimia Bioscientist : Jurnal Ilmiah Biologi Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Halal Research Journal Empiricism Journal Jurnal Pengabdian Masyarakat Kedokteran Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Lensa: Jurnal Kependidikan Fisika Journal of Authentic Research Jurnal Pendidikan Progresif Multi Discere Journal Sasambo: Jurnal Abdimas (Journal of Community Service)
M. Muhali
Universitas Pendidikan Mandalika
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

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Problem-Based Learning (PBL) in Science Education: A Literature Review Study Rizal, Saipul; Prayogi, Saiful; Muhali, Muhali; Kurnia, Nova
Lensa: Jurnal Kependidikan Fisika Vol. 11 No. 2: December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v11i2.14671

Abstract

Problem-Based Learning (PBL) has emerged as a transformative pedagogical approach in science education, fostering student-centered learning through real-world problem-solving, critical thinking, and interdisciplinary inquiry. Unlike traditional lecture-based methods, PBL encourages active engagement, collaboration, and the application of scientific knowledge in meaningful contexts. Despite its benefits, challenges such as resource limitations, curriculum misalignment, inadequate teacher training, and ineffective assessment strategies hinder its widespread adoption. This study aims to conduct a comprehensive literature review on the implementation of PBL in science education, evaluating its impact on student learning, identifying key challenges, and exploring strategies to enhance its effectiveness. A systematic literature review methodology was employed, drawing from peer-reviewed journal articles, conference proceedings, and scholarly books published over the past two decades. Thematic analysis was used to categorize findings, focusing on areas such as student engagement, critical thinking, interdisciplinary learning, and instructional barriers. The review highlights that PBL significantly improves students’ comprehension and retention of scientific concepts while fostering scientific literacy and collaborative problem-solving skills. However, successful implementation requires institutional support, well-trained educators, and innovative assessment methods aligned with PBL’s inquiry-based nature. Key strategies for enhancing PBL include increased resource allocation, better curriculum integration, professional development for teachers, and the use of technology-driven tools to facilitate interactive learning. Future research should investigate long-term impacts of PBL, its adaptability in digital and hybrid learning environments, and its effectiveness across different STEM disciplines. By addressing these challenges and refining implementation strategies, PBL can continue to serve as a powerful approach for preparing students with the scientific competencies and problem-solving abilities needed in the 21st century. This study contributes to the growing body of knowledge on PBL and offers valuable insights for educators, policymakers, and researchers seeking to optimize science education through inquiry-driven, student-centered learning methodologies.
Profil Literasi Sains Siswa Sekolah Dasar Pada Pembelajaran Ilmu Pengetahuan Alam dan Sosial Bukhari, Hasbullah Bin; Prayogi, Saiful; Muhali, Muhali
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i2.14448

Abstract

This study aims to analyze the science literacy profile of primary school students in learning Natural and Social Sciences. The study used a quantitative descriptive approach with 31 students as samples. The results showed that students' science literacy was in the very low to low category, especially in the aspects of procedural, epistemic, scientific competence and content knowledge. Inquiry-based learning is still limited and the lack of integration of local contexts in learning. The development of local wisdom-based teaching materials is needed to improve student understanding and engagement. This research recommends teacher training and community collaboration to utilize local cultural elements as a context for science learning. The findings make an important contribution in designing relevant innovative learning strategies to significantly improve students' science literacy.
Review of Secondary Metabolites From Melandean Bark Extract (Bridellia Micrantha): Bioactive Potential and Applications in Health Bayani, Faizul; Muhali, Muhali; Yuliana, Devi; Hulyadi, Hulyadi; Gargazi, Gargazi
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.11956

Abstract

Abstract The emergence of various diseases affecting the immune system, such as COVID-19 and Hand, Foot, and Mouth Disease, demands serious attention. Current climate changes occurring in almost all parts of the world can lead to the emergence of various viruses and bacteria that cause multiple diseases. Exploring medicinal plants that can enhance the immune system is crucial to be continued. This study aims to identify secondary metabolite compounds contained in Bridellia Micrantha plants using chemical reagents and gas chromatography-mass spectrometry (GC-MS) instruments. This research is an experimental laboratory study. The variable studied is the content of secondary metabolite compounds. Data were collected using chemical reagents and instruments. The obtained data are described in informative tables and graphs. Based on the identification results using instruments, positive results were found for organic compound groups such as flavonoids, alkaloids, and tannins. GC-MS test results showed that the organic compounds  contained in Bridellia Micrantha extract are 43.05% hexadecanoic acid, 21.46% oleic acid, 16% docos-13-enoic acid, 3.89% octadecanal, 1.85% propanediol, and 0.91% trans-phytol. Literature reviews indicate that the organic acids in Bridellia micrantha extract have clinical activities as antioxidants and anti-inflammatory agents, while organic compounds containing hydroxyl groups have clinical activities as anti-cancer agents. Based on these findings, Bridellia micrantha extract has the potential as a medicine that can enhance the body's immunity.  
Exploration of Student Thinking Systems Through STEM-PjBL Project Based Learning in the Science Field Sukarma, I Ketut; Hulyadi, Hulyadi; Muhali, Muhali; Azmi, Irham
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.12273

Abstract

The complexity of science concepts which are interrelated with each other requires the competence to think systematically. Complex thinking which is the basis for critical, analytical, creative and metacognitive thinking is very important to master in responding to the challenges of the 21st century. The aim of this research is to explore students' thinking systems taught using the STEM-PjBL model. This research is quantitative descriptive research. The variables studied are students' thinking systems based on the ability to determine components that influence each other in the bioethanol synthesis and dehydrator processes. The population in the study was 17 students. Students are distributed in two semesters, namely semesters II and IV. The research uses pre-test and post-test systematic thinking ability tests as data collection techniques and tools. The test consists of 5 essay questions that assess students' systematic thinking competence, and the test used is analyzed for validity, discrimination power, and level of difficulty before use. This test was developed based on indicators of systematic thinking competency. Tests were given to students before and after carrying out project activities for making and dehydrating bioethanol. After carrying out the project, students strengthen their competence through computational simulations related to the project being carried out. The data obtained is then presented in a communicative graph. The research results showed that 35.2% had high system thinking, 29% medium, 35.6% low. These results show that the application of the STEM-PjBL model is able to foster students' systematic thinking competency.
Evaluating Glycerol's Performance as a Sustainable Dehydrator in Ethanol Purification Muhali, Muhali; Hulyadi, Hulyadi; Bayani, Faizul
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.14417

Abstract

This research aims to evaluate the effectiveness of glycerol as a dehydrator in the process of purifying ethanol solutions. This study is a quantitative descriptive research aimed at analyzing the effectiveness of glycerol, derived from used cooking oil, as a water dehydrating agent in the ethanol purification process. Data obtained will be quantitative and statistically analyzed to evaluate glycerol's performance as a dehydrator. The research was conducted at the Chemistry Laboratory of Mandalika Education University (UNDIKMA) over a specific period according to the research schedule.Independent Variable is glycerol from used cooking oil as a dehydrating agent. The concentration of glycerol used is determined based on the percentage of glycerol in the ethanol solution. Dependent variable the effectiveness of ethanol purification, measured through the comparison of density and percentage of standard bioethanol and Controlled variables is Temperature and pressure during the dehydration process, duration of the purification process, and the initial ethanol concentration before purification. Data analysis uses a simple regression curve that follows Lambert Beer's law. In conclusion, the results obtained (increasing the ethanol concentration to 90.5%) show that glycerol is a very effective dehydrator in reducing water content, especially for solutions with high water content such as ethanol at an initial concentration of 23.3%.
Correlation Profile of Cognition Levels and Student Ability to Solve Problems in Biodiesel Synthesis Hulyadi, Hulyadi; Bayani, Faizul; Muhali, Muhali; Khery, Yusran; Gargazi, Gargazi
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3130

Abstract

Covid-19 has had a huge impact in all sectors. The socio-economic sector experienced the heaviest impact. One of the sectors affected is the world of education. Education is now transforming from face-to-face learning to online learning. Online learning is very helpful for students during covid-19. In addition to having a positive value, online learning also contains a negative value. For example, students' interest in reading increases, but on the other hand, students' reading power is low. Low reading power has an impact on decreasing the cognitive level of students. The purpose of this research is to first identify the cognitive level profiles and students' abilities in solving problems in the synthesis of biodiesel from used cooking oil. Analyzing the correlation between cognitive level and students' ability to solve problems. This research is a correlational descriptive research. This research was conducted on fourth semester chemistry education students who were taking an instrument chemistry course and determining the structure of organic compounds. Cognitive level and problem-solving ability were measured using a rubric for assessing cognitive level and student problem-solving ability. The data obtained is then described in graphical form. The data was then tested for correlation using the SPSS product moment correlation test. In this study, it was found that the cognitive level of most students entered at C2 and C3 levels and the average problem solving ability was 53.84. The results of the correlation test show that the cognitive level is positively correlated with the ability of students to solve problems. This is evidenced by the comparison of the value of r count 0.724> r table 0.44. Based on the results of this study, it can be concluded that the cognitive level and problem solving abilities of students are still low. Cognitive level and problem solving ability are positively correlated
Validitas dan efektivitas prototipe buku ajar fisika dasar reflektif-integratif berbasis problem solving untuk meningkatkan pengetahuan metakognisi Asy'ari, Muhammad; Hidayat, Samsun; Muhali, Muhali
Jurnal Inovasi Pendidikan IPA Vol. 5 No. 2: October 2019
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipi.v5i2.27089

Abstract

Penelitian ini bertujuan menghasilkan prototipe buku ajar fisika dasar reflektif-integratif berbasis problem solving yang valid dan efektif untuk meningkatkan pengetahuan metakognisi peserta didik. Desain penelitian ini adalah eksperimen semu menggunakan one group pretest-posttest design, dengan sampel 25 peserta didik program studi pendidikan fisika FPMIPA IKIP Mataram. Instrumen penelitian ini menggunakan lembar validasi untuk mengukur validitas produk, dan tes berbentuk essay yang mengukur efektivitas produk untuk meningkatkan pengetahuan metakognisi peserta didik. Data dan analisis yang digunakan yaitu: (1) validitas produk dilakukan oleh 2 (dua) ahli yang berkompeten dan dianalisis secara deskriptif, dan (2) efektivitas produk diukur setelah pembelajaran dan dianalisis secara deskriptif menggunakan persamaan n-gain, dan secara statistik dengan paired samples test. Hasil penelitian menunjukkan prototipe buku ajar fisika dasar reflektif-integratif berbasis problem solving valid (3,38) dan reliabel (0,97), sedangkan pengetahuan metakognisi meliputi pengetahuan deklaratif (n-gain = 0,58), pengetahuan prosedural (n-gain = 0,53), dan pengetahuan kondisional (n-gain = 0,56) dinyatakan meningkat setelah pembelajaran dengan kategori sedang. Hasil uji statistik menunjukkan prototipe buku ajar fisika dasar reflektif-integratif berbasis problem solving berpengaruh signifikan (p < 0,05) terhadap pengetahuan metakognisi peserta didik. Dengan demikian, prototipe buku ajar fisika dasar reflektif-integratif berbasis problem solving valid dan efektif untuk meningkatkan pengetahuan metakognisi peserta didik.Validity and effectiveness of reflective-integrative basic physics textbook prototype based on problem solving to improve metacognition knowledge AbstractThis study aimed at producing a valid and effective reflective-integrative basic physics textbook prototype based on problem solving in order to improve students' metacognitive knowledge at university level. The design was quasi experiment with one group pretest-posttest design, which involved 25 students of FPMIPA, IKIP Mataram. Instruments of the study were a validation sheet to measure product validity and an essay test to measure effectiveness of the product in attempt to improve students' metacognitive knowledge. Data and its analysis were conducted through: (1) two experts' descriptive judgements on the validity of the text book and (2) descriptive analysis on product effectiveness analyzed after learning session by using n-gain equation and statistical analysis using paired sample test. Results show that the text book prototype was valid (3,38) and reliable (0,97), while metacognitive knowledge that covered declarative knowledge (n-gain= 0,58), procedural knowledge (n-gain= 0,53), and conditional knowledge (n-gain= 0,56) were found improved at medium level after learning conducted. Statistical test result shows that the text book protype had significant effect (p<0,05) towards students' metacognitive knowledge. Therefore, the reflective-integrative basic physics textbook prototype based on problem solving was found valid and effective in improving students' metacognitive knowledge at university level.
Identification Of Vegetable Fat Formulations on Hardness, Cleaning and Conditioning of Solid Soap Hulyadi, Hulyadi; Muhali, Muhali; Prayogi, Saiful; Azmi, Irham; Firdaus, Laras; Suryati, Suryati; Mirawati, Baiq; Gargazi, Gargazi
Journal of Authentic Research Vol. 4 No. 2 (2025): December
Publisher : LITPAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ty850306

Abstract

This study aims to examine the effect of varying vegetable oil compositions (coconut, palm, and olive) on the physical and chemical qualities of solid soap, specifically in terms of hardness, cleansing ability, and moisture content. This study used a laboratory experiment with five soap formulas combining various vegetable oil compositions. The results showed that the formula with a combination of 60% coconut oil and 40% palm oil produced the soap with the highest hardness, while the formula with a combination of 60% coconut oil and 40% olive oil provided the best moisture content. The soap with a composition of 60% coconut oil and 40% palm oil also demonstrated better cleaning ability, thanks to the lauric acid content in coconut oil, which has antibacterial properties. This study recommends the use of a combination of coconut and palm oils to produce soap with the best quality in terms of hardness and cleansing ability, and coconut and olive oils for soap with greater skin moisturizing properties. It is hoped that this research will contribute to the development of the natural soap industry in Indonesia, reduce dependence on imported raw materials, and increase the competitiveness of natural soap products in the global market.
Analysis of the Role of Algorithms in the Analysis of Organic Molecular Structures: A Study of Formal Charges and Their Reactivity Muhali, Muhali; Hulyadi, Hulyadi; Gargazi, Gargazi; Azmi, Irham; Bayani, Faizul
Empiricism Journal Vol. 6 No. 4: December 2025
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/q58j9193

Abstract

This study aims to identify students' competency in understanding the formal charge and reactivity of organic molecules through algorithm-based learning and mathematical formulations. A quasi-experimental pretest–posttest design was used with Chemistry Education students who had taken the topic of chemical bonding and Lewis structures. Essay and multiple-choice tests were used to measure the accuracy of Lewis structures, formal charge calculations, charge symbol interpretation, and reactivity predictions. The pretest results showed an average student score of 32.4, while the posttest score increased to 74.1, with an N-gain of 0.62 (moderate–high category). Students showed significant improvement in identifying reactivity centers (electrophilic/nucleophilic) and linking charge distribution to structural stability. The application of algorithms also strengthened their ability to visualize electronic structures, particularly in the context of sp3and sp3 hybridization. Computational chemistry simulations helped students develop stronger symbolic and predictive representations of chemical reactions. This study concludes that the integration of algorithms and symbolic approaches in learning effectively improves students' conceptual and computational literacy in organic chemistry.
Pengolahan Rempah dan Minuman Tradisional bagi PKK dan Kader Posyandu Desa Bengkaung Tahun 2025 Bayani, Faizul; Hulyadi, Hulyadi; Muhali, Muhali; Yuliana, Depi; Hamdani, Ade Sukma; Pomeistia, Meilynda; Gargazi, Gargazi
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 10 No. 4 (2025): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/bw99gy69

Abstract

Pemanfaatan rempah dan tanaman obat keluarga (TOGA) untuk minuman tradisional berpotensi memperkuat ketahanan kesehatan keluarga dan membuka peluang usaha rumah tangga. Namun, pengolahan di tingkat rumah tangga/UMKM masih menghadapi kendala dalam hal higienitas, keamanan pangan, dan kewirausahaan. Desa Bengkaung di Kecamatan Batulayar, Kabupaten Lombok Barat, yang kaya rempah dan TOGA, memiliki PKK dan kader Posyandu yang berperan penting dalam kesehatan masyarakat, namun belum memiliki keterampilan dalam mengolah minuman tradisional yang sehat dan aman. Kegiatan pengabdian ini bertujuan meningkatkan kapasitas PKK dan kader Posyandu untuk memproduksi minuman tradisional berbasis rempah lokal yang higienis serta menumbuhkan orientasi usaha mikro. Pendekatan yang digunakan adalah pelatihan partisipatif dengan paradigma Participatory Action Research (PAR), mencakup analisis kebutuhan, penyusunan modul higiene-sanitasi dan prinsip HACCP sederhana, serta pelatihan kewirausahaan dasar. Evaluasi dilakukan melalui pre-post test, observasi praktik, dan penilaian organoleptik produk. Hasil menunjukkan peningkatan pengetahuan peserta terkait manfaat rempah dan keamanan pangan, serta keterampilan teknis pengolahan dan pengemasan, yang mendorong inisiatif untuk mengembangkan minuman tradisional sebagai usaha mikro berbasis komunitas. Processing of Traditional Spices and Beverages for the PKK and Posyandu Cadres of Bengkaung Village in 2025  Abstract The utilization of spices and family medicinal plants (TOGA) for traditional beverages has the potential to strengthen family health resilience and open opportunities for household businesses. However, processing at the household/SME level still faces challenges in hygiene, food safety, and entrepreneurship. Bengkaung Village in Batulayar District, West Lombok Regency, rich in spices and TOGA, has PKK and Posyandu cadres who play an important role in public health, but they lack skills in processing healthy and safe traditional beverages. This community service activity aims to enhance the capacity of PKK and Posyandu cadres to produce hygienic traditional beverages based on local spices and foster a microenterprise orientation. The approach used is participatory training with a Participatory Action Research (PAR) paradigm, including needs analysis, the development of hygiene-sanitation modules, and simple HACCP principles, as well as basic entrepreneurship training. Evaluation was carried out through pre-post tests, practice observations, and organoleptic product assessments. The results show an increase in participants' knowledge regarding the benefits of spices and food safety, as well as technical skills in processing and packaging, which encourage the initiative to develop traditional beverages as a community-based microenterprise.
Co-Authors - Khaeruman Abdul Rais Nur Abdul Sakban Agus Muliadi AHMADI Ahmadi Ahmadi Ali, Nur Aini Abdurrahman Aminullah Aminullah Andriani, Mery Andriani, Reni Anita Fibonacci Aprilian, Malisa Asy’ari, Muhammad Azmi, Irham Baiq Mirawati Bayani, Faizul Bilad, Muhammad Roil Binar Kurnia Prahani Bukhari, Hasbullah Bin Citra Ayu Dewi Dedi Sumarsono Delila Idsa Amara Raymanda Devi Yuliana, Devi Diah Lukitasari Duwi Purwati Eka C.G. Kerihi Febriani, Nadia Firdaus, Laras Fitriani, Herdiyana Gargazi Gargazi Gollu, Angelia Apliana Hambarwati, Sri Hamdani, Ade Sukma Handayani, Anak Agung Ayu Trisna Helmi Rahmawati Hendrawani Hendrawani Herdina Fitriani Heswandi Heswandi Heswandi, Heswandi Hulyadi, Hulyadi Hunaepi, Hunaepi Husni Mubarok Husni Mubarok I Ketut Sukarma I Wayan Karmana Irma Utu Nganji Ismuliani, Ismuliani Istin Fitriana Aziza Iwan Doddy Dharmawibawa Joselevich, María Khaeruman Kurnia, Nova Laras Firdaus Laras Firdaus Laras Firdaus Laras Firdaus Linda Rahmawulan Malisa Aprilian Masiah Masiah Mery Andriani Mirawati, Baiq Muhamad Ikhsan Muhammad Asy'ari Muhammad Fuaddunazmi Muhammad Roil Bilad Muhammad Roil Bilad Muhammad Sabri Musahidin, Musahidin Ni Nyoman Sri Putu Verawati Nova Kurnia Nur, Abdul Rais Pahriah, Pahriah Pomeistia, Meilynda Prayogi, Saiful Raden Mohamad Herdian Bhakti Raehanah Raehanah Rahma, Arinda Yusfika Rahmawulan, Linda Ratna Azizah Mashami Raymanda, Delila Idsa Amara Reni Andriani Rensani Taloin Retnasari, Baiq Ayu Rizal, Saipul Roniati Sukaisih Roniati Sukaisih Roniati Sukaisih Samsun Hidayat Samsun Hidayat Sri Yuliani Astuti Sukaisih, Roniati Sukaisih, Roniati Sumarlin, Muhamad Suryati Suryati Suryati Suryati Taufik Samsuri Ulfanita, Mila Yeti Kurniasih Yuliana, Depi Yusran Khery, Yusran Yusril Anwar