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All Journal Jurnal Pendidikan Kimia Indonesia Jurnal Matematika & Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia Jurnal SOLMA Indonesian Journal of Chemistry JMM (Jurnal Masyarakat Mandiri) Jurnal Ilmiah Kanderang Tingang Journal of Educational Chemistry (JEC) Patria : Jurnal Pengabdian Kepada Masyarakat Jurnal Riset Pendidikan MIPA Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Mattawang: Jurnal Pengabdian Masyarakat JSEP (Journal of Science Education and Practice) Jurnal Akademika Kimia Jurnal Ilmu Pendidikan Indonesia JIPI (Jurnal IPA dan Pembelajaran IPA) Mitra Sains Jurnal Akademika Kimia Jurnal Pendidikan MIPA Jurnal Abdimas Ilmiah Citra Bakti
Daud Karel Walanda
Pendidikan Kimia FKIP Universitas Tadulako Palu Indonesi 94119
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Impact of Visual Audio Media on Learning Results on Class XI Reaction Speed Material Ratman, Ratman; Walanda, Daud Karel; Amalia, Maryam
Journal of Educational Chemistry (JEC) Vol. 6 No. 2 (2024)
Publisher : Department of Chemistry Education, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jec.2024.6.2.19895

Abstract

The study aims to describe the impact of the use of audiovisual media in the form of video learning on the learning results of students at Sigi District State High School 10. The research method is quantitative research with a type of quasi-experimental research or experimental experiment with a design pretest-posttest control group design. The differences in learning results on reaction speed between experimental and control classes are shown by the results of Wilcoxon and Mann Whitney's statistical analysis tests. The results of the Wilcoxons and Mann whitney statistical analytics tests on the post-test values of experimental classes and the control classes both show the significance values Asymp.Sig.(2-tailed) = <0,000. Because of the signification values Asymp.Sig.(2-tailed) = 0,000 < 0,05. Then from the two results of these statistical analyses it can be concluded that there is an influence of the use of audiovisual media in the form of video learning on the learning outcomes of students in SMAN 10 Sigi.
Tantangan yang Dihadapi Guru IPA dalam Menerapkan Pembelajaran berdiferensiasi di SMP Palu Sulawesi Tengah Indonesia Napitupulu, Nurasyah Dewi; Ratu, Bau; Walanda, Daud K; Napitupulu, Mery
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.6383

Abstract

Within the ever-evolving scene of instruction, the usage of differentiated learning, an approach planned to cater to assorted student’s needs, has picked up unmistakable quality. This article investigates the challenges experienced by science teachers as they explore the complexities of joining differentiated learning procedures into their classrooms in junior high schools in Palu, Central Sulawesi-Indonesia. A mixed-methods investigative plan, comprising overviews and interviews, was utilized to explore the encounters of science teachers. The quantitative stage uncovered that whereas a critical parcel of teachers grasped differentiated learning, they experienced challenges such as time limitations (80%), substance adjustment (50%), constraints to fitting educating assets (20%), students’ resistance (30%), and inadequately proficient improvement (20%). The subjective stage gives in-depth experiences into these challenges, highlighting the requirement for imaginative procedures, progressing back, and asset accessibility to overcome them. The consideration underscores the significance of tending to these challenges to cultivate a more comprehensive and locks-in science teaching-learning environment that benefits both teachers and students
Exploring Differentiated Learning Strategies to Respond to Differences in Students' Level of Understanding of Metal Inorganic Chemistry Course Napitupulu*, Mery; Walanda, Daud K; Griffiths, Zoe; Nurmayanti, Yuli; Poba, Detris
Jurnal IPA & Pembelajaran IPA Vol 9, No 1 (2025): MARCH 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i1.42452

Abstract

Differentiated learning refers to educational schemes and materials individually developed about the varied needs of each student to improve knowledge understanding as individuals, as well as participation involvement. The study applied differentiated learning in the metal inorganic chemistry class of chemistry education to address student understanding variability. These strategies and their effect on student performance were studied through observations, surveys, and interviews in a mixed-method design. The findings portrayed that the application of differentiated learning helps boost the student's performance in understanding the concepts inorganic chemistry of metals. Additionally, the students showed higher satisfactions and engagements when the instructor incorporated different teaching modes, materials (videos, presentation materials, and books), and practical use of examples. Group discussion and collaborative learning among the students helped them better understanding and retention of the knowledge of metal inorganic chemistry
Training on The Implementation of Practical Field Experience (PPL) Based On Lesson Study to Teachers of PPG FKIP Untad Partner Schools In East Palu-Mantikulore District, Palu City: Pelatihan Pelaksanaan Praktik Pengalaman Lapangan (PPL) Berbasis Lesson Study Kepada Guru-Guru Sekolah Mitra PPG FKIP Untad di Kecamatan Palu Timur-Mantikulore Kota Palu Sabang, Sri Mulyani; Arwansyah, Arwansyah; Tahril, Tahril; Walanda, Daud Karel; Napitupulu, Mery
Mattawang: Jurnal Pengabdian Masyarakat Vol. 4 No. 4 (2023)
Publisher : Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.mattawang2190

Abstract

Lesson Study is an approach to improving the quality of learning carried out by teachers collaboratively, with the main steps of designing learning to achieve goals, implementing learning, observing the implementation of the learning, and reflecting to discuss the learning studied and improve it and plan the next lesson. The main focus of implementing lesson study is student activities in class, with the assumption that student activities are related to teacher activities while teaching in class. In implementing PPL Education at UNTAD, the implementation of Lesson Study is integrated with the implementation of clinical supervision. The aim is to improve the quality of student learning outcomes and learning products. However, what is still experienced by the world of education today is that more than 50% of teachers do not understand and pay less attention to achieving and improving pedagogical and professional competence, including in schools in Palu City. To teach teachers to implement LS, it is not enough if teachers are introduced to what and how to implement it, but they also need to be introduced to why, what the long-term and short-term goals of implementation are. Teachers also need to be introduced to what the requirements are, what the difficulties and obstacles are in implementation, and that the main requirement for implementation is a commitment to benefit the nation's children. One of the critical characteristics of intelligent humans is that they not only know something but also how to respond and act on it.AbstrakLesson Study merupakan suatu pendekatan peningkatan kualitas pembelajaran yang dilaksanakan oleh guru secara kolaboratif, dengan langkah-langkah pokok merancang pembelajaran untuk mencapai tujuan, melaksanakan pembelajaran, mengamati pelaksanaan pembelajaran tersebut, serta melakukan refleksi untuk mendisukusikan pembelajaran yang dikaji tersebut dan menyempurkannya dan merencanakan pembelajaran berikutnya. Fokus utama pelaksanaan Lesson Study adalah aktivitas siswa di kelas, dengan asumsi bahwa aktivitas siswa tersebut terkait dengan aktivitas guru selama mengajar di kelas. Dalam penyelenggaraan PPL Kependidikan di UNTAD, penerapan Lesson Study diintegrasikan dengan penerapan supervisi klinis. Tujuannya untuk meningkatkan kualitas hasil belajar dan produk belajar siswa. Namun yang masih dialami oleh dunia pendidikan sampai saat ini adalah lebih besar 50% guru yang kurang memahami dan kurang memperhatikan pencapaian dan peningkatan kompetensi pedagogik dan professional, termasuk di sekolah-sekolah yang ada di Kota Palu. Untuk membelajarkan guru melaksanakan LS tidak cukup bila guru dikenalkan pada apa dan bagaimana melaksanakannya, tetapi juga perlu dikenalkan mengapa, apa tujuan jangka panjang dan jangka pendek pelaksanaan. Guru juga perlu dikenalkan pada apa persyaratannya, apa kesulitan dan hambatan pelaksanannya, dan bahwa persyaratan utama pelaksanannya adalah adanya komitmen untuk memaslahatkan anak bangsa. Salah satu ciri kritis manusia cerdas yakni tidak hanya mengetahui sesuatu tetapi juga bagaimana menanggapi dan menindaklanjutinya.
Pemanfaatan Student Worksheet Berbasis HyperDocs bagi Guru SMA untuk Meningkatkan Kreativitas Sains dalam Pembelajaran Kimia Poba, Detris; Walanda, Daud K.; Napitupulu, Mery; Enar, Rohmala; Walanda, Ryka M.
Jurnal SOLMA Vol. 14 No. 3 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i3.20906

Abstract

Background: Pemanfaatan student worksheet yang interaktif menunjang kreativitas sains siswa. Kreativitas sains diperlukan oleh siswa di era saat ini dalam memecahkan permasalahan yang berhubungan dengan kehidupan sehari-hari. Dengan demikian, tujuan dari pengabdian ini yaitu memberikan pembimbingan bagi guru dalam menciptakan student worksheet yang interaktif menggunakan HyperDocs untuk meningkatkan kreativitas sains dalam pembelajaran kimia. Student worksheet yang akan dirancang merupakan hasil penelitian dan telah tervalidasi. Metode: Metode tahapan pelaksanaan terdiri dari sosialisasi, pelatihan, penerapan teknologi, pendampingan dan evaluasi, serta keberlanjutan program. Sebanyak 24 guru kimia yang tergabung dalam MGMP kota Palu menjadi sasaran kegiatan. Hasil: Melalui kegiatan pengabdian guru-guru SMA yang tergabung dalam MGMP Kimia Kota Palu dapat merancang dan menggunakan student worksheet berbasis HyperDocs untuk meningkatkan kreativitas sains utamanya pengaplikasian dalam materi kimia. Kesimpulan: Kegiatan pengabdian memberikan dampak positif bagi guru dan mendapatkan respon sangat baik, serta guru-guru memperoleh peningkatan keterampilan digital yang berguna dalam menunjang kurikulum merdeka.
Comparison of Maceration and Soxhlet Extraction Methods on Flavonoid Contents from Papaya (Carica papaya) Anggraini, Windi; Napitupulu, Mery; Walanda, Daud K.; Poba, Detris
Jurnal Akademika Kimia Vol. 14 No. 2 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i2.pp112-117

Abstract

The papaya plant offers numerous benefits. Each part of the papaya plant has its benefits, starting from the fruit, stem, roots, flowers, and leaves. Livestock Medicine confirmed the presence of at least 22 types of bioactive compounds. The papaya plant contains active compounds that act as antioxidants, including flavonoids. This research aims to compare maceration and Soxhlet extraction methods on the flavonoid content of papaya (Carica papaya) leaf extract as measured using a UV-Vis spectrophotometer. The methods used to separate flavonoid levels are maceration and Soxhlet extraction. Based on the research that has been carried out, it was found that two treatments were carried out in the maceration method: the first treatment was with 70 % ethanol solvent, namely 36.6 mg / 100g or 3.66 %, for 96 % ethanol solvent, namely 77.6 mg / 100g or 7.76 %. Two treatments are also carried out in the Soxhlet method: 70% ethanol (33.6 mg/100g, 3.36%) and 96% ethanol (92.6 mg/100g, 9.26%). These results indicate that Soxhlet extraction is the most effective method for producing flavonoids in papaya leaf extract, as the levels obtained are higher than those obtained by maceration.
Development of a Physics Integrated STEM Meguru Model Oriented by Local Wisdom for Students' Creative Thinking Skills Eka Dewi; Finta Amalinda; Daud K. Walanda; Mohammad Jamhari; Marungkil Pasaribu
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9733

Abstract

One of the existing learning approaches is challenge-based learning (CBL) which modified to Meguru, that encourages students to think critically and creatively in solving real problems. The STEM integrated CBL physics learning model based on local wisdom is present as an alternative to overcome these challenges. The main aim of this research is to develop a STEM-integrated physics challenge based learning model oriented to local wisdom towards quality students' creative thinking skills with valid, practical and effective criteria. This research is the Borg and Gall development model that was carried out through expert validation via FGD to obtain suggestions and input in order to revise the model, so that the valid Meguru model was obtained. The experts provide recommendations that the Meguru learning model was suitable for use with improvements (LDP). Validation of learning tools, obtained model implementation sheet with a score of 1.00 (very valid), teaching module with a score of 3.78 (very valid), student activity sheet (LKPD) with a score of 3.94 (very valid), student activity observation sheet with a score of 1 .00 (very valid), and the student response questionnaire was 98.66 (very valid). In the testing phase of the model's effectiveness, students' creative thinking skills were obtained with an average score of 97.50. The score obtained in the very good category shows that the learner's goals were achieved. where the Meguru learning model is effectively used in Physics learning.  The type of research is development research or Research and Development (R&D)
Development of Integrated Basic Physics Learning E-modules for Natural Disaster Mitigation to Improve Quality Learning Finta Amalinda; Eka Dewi; Daud K Walanda; Darsikin Darsikin; I Komang werdhiana
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9734

Abstract

In an era of increasingly frequent natural disasters, integrating disaster mitigation into educational frameworks is crucial. This study addresses the need for innovative teaching materials that not only enhance basic physics understanding but also prepare students for challenges in disaster-prone regions. The research aims to develop a basic physics e-module integrated with disaster mitigation. The goal is to improve students' knowledge of physics and disaster preparedness, particularly in areas like Central Sulawesi. Using a Research and Development (R&D) approach with the ADDIE model, the study's findings show expert validators gave an average score above 4.00, lecturers rated the course 4.67, and there was an improvement in learning outcomes, with CI values ranging from 6.74 to 8.39 and an effect size (Cohen's d) of 4.17. The research concludes that e-modules can effectively enhance learning quality and disaster preparedness.
Making Biochar from Palapi Wood Waste (Heritiera sp.) for Decolourisation of Dyes in Water Razni, Razni; Napitupulu, Mery; Walanda, Daud K.; Poba, Detris
Jurnal Akademika Kimia Vol. 14 No. 4 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i4.pp209-217

Abstract

Dye waste from industries such as batik can pollute the environment and endanger health because it is carcinogenic. One solution to handle this is to use biochar as an adsorbent, where in this study, the biomass used as biochar is palapi wood waste in the form of wood husks. This study aims to determine the adsorption capacity of biochar from palapi wood waste against indigsol blue and remazol yellow dyes with variations in weight, time, and pH. The method used in this study is the pyrolysis method, namely the process of heating biomass materials at high temperatures without or with little oxygen. Characterization was carried out by determining the water content, ash content, functional groups, and morphology of the biochar. Decolorization efficiency was analyzed using a UV-Vis spectrophotometer. The results showed that the water content at temperatures of 400 ℃, 450 ℃, and 500 ℃ were 11.9 %, 6.6 %, and 5.3 %, respectively. The ash content at the same temperature was 2.3 %, 7.5 %, and 8.7 %, respectively. The maximum weight with variations of 50, 75, 100, and 125 mg in adsorbing 2 dyes is 125 mg with an adsorption percentage of indigosol blue dye of 41% and remazol yellow dye of 42.9 %. The optimum time for biochar to adsorb indigosol blue dye is 50 minutes, with an adsorption percentage of 47.9, and remazol yellow dye for 40 minutes, with an adsorption percentage of 79 %. The optimum pH of indigosol blue and remazol yellow dyes by biochar occurs at pH 7, with an adsorption percentage of indigosol blue dye of 93.03 % and remazol yellow dye of 87.4 %. The absorption capacity of biochar for indigosol blue and remazol yellow dyes follows the Langmuir absorption isotherm of 0.9194 mg/g and 0.7954 mg/g, respectively.
Effectiveness of Biochar from Kapok Fruit Peel (Ceiba pentandra) for Decolorization of Indigosol Blue in Water Putra, Iim E.; Napitupulu, Mery; Walanda, Daud K.; Rahmawati, Sitti
Jurnal Akademika Kimia Vol. 14 No. 4 (2025)
Publisher : Universitas Tadulako

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

Abstract

In the batik industry, synthetic dyes such as indigosol blue are more commonly used than natural dyes. However, water pollution resulting from the batik industry is a serious issue that can threaten water quality and be harmful to human health. This research uses the adsorption method with kapok fruit peel as the adsorbent to address the problem of Indigosol blue dye. The kapok fruit peel is pyrolyzed at temperatures of 400 °C, 450 °C, and 500 °C. This study aims to determine the effectiveness of kapok fruit peel biochar in the adsorption of indigosol blue dye with variations in weight, time, and pH. The results show that the characteristics of kapok fruit shell biochar include moisture content at temperatures of 400 °C, 450 °C, and 500 °C, which are 7.40 %, 6.40 %, and 5.20 %, respectively. The ash content of kapok fruit shell biochar at temperatures of 400 °C, 450 °C, and 500 °C was 8.70 %, 6.10 %, and 5.40 %, respectively. The maximum weight of kapok fruit shell biochar in absorbingindigosol blue dye was 75 mg with an adsorption capacity of 0.986 mg/g. The maximum contact time required was 40 minutes with an adsorption capacity of 0.626 mg/g. The maximum pH of indigosol blue dye in the adsorption process occurred at pH 7 with an adsorption capacity of 1.709 mg/g. These findings indicate that kapok fruit shell biochar has potential as an environmentally friendly alternative adsorbent for treating batik industry wastewater.
Co-Authors AA Sudharmawan, AA Afadil Alam Anshary Alep, Boni Alizah, Nur Almahdali, Khafifah Amalia, Maryam Anang Wahid M.Diah Anggraini Anggraini Anggraini, Windi Arwansyah Arwansyah Baharuddin Hamzah Baloga, Hendra Bau Ratu Berlin, I Dewa Gede Darsikin Darsikin Dasi, Alfina D. A. Delviana Melego Detris Poba Dewi, Evie Kurnia Maya Dewijayanti, Putu W. Djahir, Ahmad Rifaldi Djulia Onggo Eka Dewi Ellak I. von Nagy-Felsobuki Emi Sulmeni Enar, Rohmala Finta Amalinda Finta Amalinda Fitriani, Eva Geoffrey A. Lawrance Griffiths, Zoe Hasmawati Hasmawati I Ketut Suada I Komang Jati Purnawan I Komang werdhiana I W. A. Wirawan Irwan Irwan Irwan Said Ismail Ismail Kasmudin Mustapa Kusuma, I Gede Yoga Nata Leonardo Leonardo Marungkil Pasaribu Mery Napitupulu Miryam B. Kalase Mohammad Jamhari Muhammad Agus Muljanto Mustakim, Sartika MUSTAMIN IDRIS Nakazawa, Koyomi Napitupulu*, Mery Napitupulu, Nurasyah D Ni Luh Cicik Fitriani Novianti Patiung Nur A. O. Buhang Nurasyah Dewi Napitupulu Nurdin Rahman Nurhikma, Nurhikma Poba, Detris Podala, Katherina Pongenda, Rudy Christiyanto Purnama Ningsih Putra, Iim E. Rahma, Sri Ratman Ratman Razni, Razni Reny, Reny Rimah Juwita Rita Lefrida Robert C. Burns Rukmawati Rukmawati Ryka Marina Walanda Setiawan, I Ketut Ardi Siang Tandi Gonggo Siang Tandi Gonggo Siti Nuryanti Sitti Aminah Sitti Rahmawati Solfarina, Solfarina Sri Hastuti Virgianti Pulukadang Sri Mulyani Sabang Suciati, Indah Suhartini Musa Supriadi Supriadi Susilawati, Niluh Eka Syamsiar, Syamsiar Tahril Taslima Tiara Maharani, Tiara Tiwow, Vanny M A Trisnawati Trisnawati Tudjuka, Mora Delfita Uswatun Hasanah Wagiman, Saumadin Walanda, Richard Albert Walanda, Ryka M Walanda, Ryka M. Yeyet Sri Rahmi Yuli Nurmayanti Yulianti, Iluh Devi