Garuda - Garba Rujukan Digital

Eco-Brick Utilization as a Solution to Environmental Problems and Utilization of Plastic Waste in Jawisari Village Erma Aulia Istiqomah; Nur Rahmaniyah Wijayanti; A’immatus Sa’diyah; Ivena Tiara Syafa; Eky Pradipta; Fitria Natasya Anjani; Layla Asyrotun Ni’mah; Faridabby Tsamarah Hannu; Lenni Khotimah Harahap
Prosiding Seminar Nasional Manajemen dan Ekonomi Vol. 3 No. 2 (2024): : Prosiding Seminar Nasional Manajemen dan Ekonomi
Publisher : Universitas Kristen Indonesia Toraja

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/semnas.v3i2.498

The plastic waste problem in Indonesia, which is the second largest contributor in the world, prompts the need for innovative and sustainable solutions. One proposed solution is the utilization of plastic waste into ecobricks, which are eco-friendly bricks made from compacted plastic waste. The training program in Jawisari Village involved socialization and practice of ecobricking, aiming to raise community awareness about plastic waste management and provide practical skills. The activity successfully engaged the community, produced ecobricks, and is expected to create a cleaner and healthier environment.

Development of Chemistry Flashcard (Chemilard) Based on Augmented Reality in Unity 3D for Chemical Bonding Material Setiawan, Riky; Harahap, Lenni Khotimah
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.2024.6.2.22801

The lack of variety in instructional media can be a starting point for the difficulty in creating an effective and enjoyable learning environment, particularly in chemistry subjects. The concepts in chemical bonding are abstract, making them difficult to apply contextually. Based on these issues, the researchers developed CHEMILARD (Chemistry Flashcard) media using augmented reality. This research employed the D&D (Design and Development) model. The subjects of this study were 6 expert validators in media and content, as well as 25 respondents. The data analysis techniques included Aiken’s analysis and percentage models. The study concluded that the validation of CHEMILARD media, developed across all assessment aspects, indicated that the product is feasible for trial implementation with a score of V=0.90 from media experts and V=0.91 from content experts. The respondents' test results showed an ideal media percentage of 90.3% and an overall media quality rating of 76.72, which is categorized as Very Good. This indicates that the augmented reality-based CHEMILARD media can significantly enhance the learning experience by making abstract chemical bonding concepts more tangible and easier to understand for students.

Pemberdayaan Masyarakat Ubah Limbah menjadi Berkah : Pemanfaatan Minyak Jelantah sebagai Bahan Dasar Sabun Cair di Desa Jawisari Iysfa Imroatun Adilla; Aulia Muthiatus Sa’adah; Chandra Wijaya; Diyah Pitaloka; Icah Hamidah; Kamila Rosyada; Mela Purnamasari; Melysa Septiana; Lenni Khotimah Harahap
Pemberdayaan Masyarakat : Jurnal Aksi Sosial Vol. 1 No. 4 (2024): Desember : Pemberdayaan Masyarakat: Jurnal Aksi Sosial
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/aksisosial.v1i4.891

The Workshop program for training in making soap from used cooking oil is one of the work programs of the Regular Community Service Program (KKN) 83 UIN Walisongo Semarang Post 16 which was carried out with the mothers of Jawisari Village at the Jawisari Village Hall, Limbangan District, Kendal Regency. This workshop program was motivated by the fact that many people still use used cooking oil repeatedly so that it can endanger their health and there are still those who dispose of used cooking oil carelessly so that it can cause environmental pollution. This work program aims to provide an understanding to the community about the negative impacts of used cooking oil waste on the environment and health, introduce the application of science and technology through training in processing used cooking oil waste, and provide training and assistance to control environmental pollution by providing education and training to local residents on how to process used cooking oil waste into liquid soap. This training workshop activity was carried out in three main stages, namely counseling, practicing making liquid soap, and evaluation. The results of this program show that the training workshop activities were successful and well-run where participants were able to understand the basic techniques of making liquid soap and gain direct experience in practice, the mothers who participated were also very enthusiastic and actively participated and felt happy to be able to learn to change used cooking oil waste into liquid soap products that are useful for everyday life. Making liquid soap from used cooking oil is an innovation that is not only useful for reducing waste oil that pollutes the environment, but also provides economic and social benefits for the community because it can open up business opportunities and support the local economy. Therefore, as a sustainable step, it is necessary to provide education to the community about the importance of recycling used cooking oil and improving technology in the production of liquid soap to be more efficient and environmentally friendly

Development of Chemistry Flashcard (Chemilard) Based on Augmented Reality in Unity 3D for Chemical Bonding Material Setiawan, Riky; Harahap, Lenni Khotimah
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.2024.6.2.22801

The lack of variety in instructional media can be a starting point for the difficulty in creating an effective and enjoyable learning environment, particularly in chemistry subjects. The concepts in chemical bonding are abstract, making them difficult to apply contextually. Based on these issues, the researchers developed CHEMILARD (Chemistry Flashcard) media using augmented reality. This research employed the D&D (Design and Development) model. The subjects of this study were 6 expert validators in media and content, as well as 25 respondents. The data analysis techniques included Aiken’s analysis and percentage models. The study concluded that the validation of CHEMILARD media, developed across all assessment aspects, indicated that the product is feasible for trial implementation with a score of V=0.90 from media experts and V=0.91 from content experts. The respondents' test results showed an ideal media percentage of 90.3% and an overall media quality rating of 76.72, which is categorized as Very Good. This indicates that the augmented reality-based CHEMILARD media can significantly enhance the learning experience by making abstract chemical bonding concepts more tangible and easier to understand for students.

UPAYA MENINGKATKAN KREATIFITAS MAHASISWA MENGGUNAKAN BAHAN AJAR KIMIA BERBASIS PROJECT BASED LEARNING (PjBL) Siregar, Anggi Desviana; Ravico, Ravico; Harahap, Lenni Khotimah
CHEDS: Journal of Chemistry, Education, and Science Vol 6, No 1 (2022)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v6i1.5500

Penelitian ini bertujuan untuk mendeskripsikan upaya meningkatkan kreativitas mahasiswa pada pembelajaran kimia menggunakan bahan ajar berbasis Project Based Learning (PjBL). Subjek pada penelitian ini adalah mahasiswa jurusan biologi semester 2 Institut Agama Islam Negeri (IAIN) Kerinci yang mengikuti perkuliahan kimia dasar. Penelitian dilakukan dengan desain One-Shot Case Study. Data hasil penelitian diperoleh dari analisis lembar observasi produk dengan skala berpikir kreatif (Creative Thinking Scale/CTS). Analisis data dengan teknik persentase dan diolah secara deskriptif. Hasil penelitian menunjukkan kreativitas mahasiswa dalam menghasilkan produk model-model bentuk molekul menggunakan bahan limbah lingkungan termasuk pada kategori sangat tinggi dengan nilai 80. Maka dapat disimpulkan bahwa penggunaan bahan ajar kimia berbasis Project Based Learning (PjBL) dapat meningkatkan kreativitas mahasiswa

Penguatan Kompetensi Praktis Mahasiswa Pendidikan Biologi melalui Pelatihan Pembuatan Filter Air Sederhana Dimas Ridho; Ratna Sari Dewi; Lenni Khotimah Harahap; Aldo Geo Frengky Saragih; Anggun Maharani; Delima Sianturi; Elsa Elperida Pandiangan; Monalisa Situmorang; Mei Sufi Anisa Sibarani; Wiranda Hasibuan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 3 (2025): Desember : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i3.6849

Clean water is a fundamental necessity; however, many regions still struggle to access it due to contamination by suspended particles, organic matter, and harmful microorganisms. This activity aims to strengthen the practical competence of Biology Education students at Universitas Negeri Medan through training in making simple water filters. The training was conducted through demonstrations and simulations using turbid water from the Tembung River as a sample. The filter was constructed from readily available materials such as used plastic bottles, cotton, tissue, sand, small gravel, and palm fiber arranged in layers. The results showed that the filter effectively reduced water turbidity and enhanced students’ skills in clean water treatment technology. The training also encouraged students to develop 21st-century skills such as critical thinking, problem-solving, and collaboration, while preparing them as future educators capable of raising community awareness about the importance of maintaining water quality. Therefore, this training has the potential to be developed as an applicative environmental education model that contributes positively to clean water provision.

Correlation between Digital Literacy with Chemical Computational Ability: Chemistry Students at UIN Walisongo Harahap, Lenni Khotimah; Drastisianti, Apriliana
LAVOISIER: Chemistry Education Journal Vol 4, No 2 (2025): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v4i2.17593

This research aims to determine the relationship between digital literacy and chemical computing abilities of Chemistry Education students at UIN Walisongo Semarang. Digital literacy is an important competency that supports 21st century skills, including mastery of technology in chemistry learning. This research uses a quantitative approach with a correlational design. The research population was all 6th semester students taking the Computational Chemistry course, with a total sample of 56 students. The research instruments consisted of a digital literacy questionnaire, computational chemistry practice tests, observation sheets, and interviews. Data analysis was carried out using the Pearson correlation formula. The results showed that there was a positive and significant relationship between digital literacy and students' chemical computing abilities (r = 0.72; p 0.05). This means that students with high digital literacy tend to have better chemical computing skills. This research recommends strengthening digital literacy in the technology-based chemistry learning curriculum.

Correlation between Digital Literacy with Chemical Computational Ability: Chemistry Students at UIN Walisongo Harahap, Lenni Khotimah; Drastisianti, Apriliana
LAVOISIER: Chemistry Education Journal Vol 4, No 2 (2025): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v4i2.17593

This research aims to determine the relationship between digital literacy and chemical computing abilities of Chemistry Education students at UIN Walisongo Semarang. Digital literacy is an important competency that supports 21st century skills, including mastery of technology in chemistry learning. This research uses a quantitative approach with a correlational design. The research population was all 6th semester students taking the Computational Chemistry course, with a total sample of 56 students. The research instruments consisted of a digital literacy questionnaire, computational chemistry practice tests, observation sheets, and interviews. Data analysis was carried out using the Pearson correlation formula. The results showed that there was a positive and significant relationship between digital literacy and students' chemical computing abilities (r = 0.72; p 0.05). This means that students with high digital literacy tend to have better chemical computing skills. This research recommends strengthening digital literacy in the technology-based chemistry learning curriculum.

Differences in Students’ Self-Efficacy and Learning Outcomes between Case-Based Learning and Direct Instruction in Basic Chemistry Muliaman, Agus; Dewi, Ucia Mahya; Harahap, Lenni Khotimah; Ridho, Dimas
Journal of The Indonesian Society of Integrated Chemistry Vol. 17 No. 2 (2025): Journal of The Indonesian Society of Integrated Chemistry
Publisher : Pendidikan Kimia FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jisic.v17i2.50172

This study is motivated by low levels of self-efficacy and learning achievement among students in General Chemistry, which are often associated with the material's abstract nature and the limited use of active learning approaches. This study aims to examine differences in students’ self-efficacy and learning outcomes between the Case-Based Learning (CBL) model and the Direct Instruction (DI) model. The study employed an intact-group comparison (quasi-experimental) design involving 44 students from the Chemistry Education Program at Malikussaleh University, divided into an experimental group (CBL) and a control group (DI). Research instruments included a self-efficacy questionnaire and a multiple-choice posttest. The results revealed statistically significant differences between the two groups in both self-efficacy (t = 13.715; p < .001) and learning outcomes (t = 8.793; p < .001). Students in the CBL group obtained higher mean scores in self-efficacy (72.86) and learning outcomes (83.27) compared to those in the DI group. These findings indicate that Case-Based Learning is associated with higher self-efficacy and better learning outcomes in General Chemistry. The study suggests that CBL can be considered an alternative instructional approach to support active and contextual learning in science education.

Development and Usability Perceptions of Spectral Crime Analysis Network Game with Augmented Reality for Ultraviolet-Visible Light Spectroscopy Hussain, Abbas Ali Iftikhar; Kamari, Azlan; Syamsudin, Frendi Ihwan; Harahap, Lenni Khotimah; Saputro, Sulistyo; Wiyarsi, Antuni; Sukkaew, Adulsman
AMPLITUDO : Journal of Science and Technology Innovation Vol. 5 No. 1 (2026): February
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/amplitudo.v5i1.517

The Spectral Crime Analysis Network (SCAN) game was developed using the ADDIE model, used a hybrid augmented reality embedded game-based learning approach and aligned with the learning standards of ultraviolet–visible (UV–Vis) spectroscopy. This game is developed as a learning and reinforcement tool in analytical chemistry instrumentation for undergraduate chemistry students. Based on a survey study conducted on 265 respondents, it was found that the SCAN game demonstrated high usability with mean scores of 3.49 (SD = 0.489) for usefulness, 3.49 (SD = 0.474) for ease of use, 3.48 (SD = 0.504) for ease of learning and 3.53 (SD = 0.476) for satisfaction. Overall, SCAN supports cooperative, technology-enhanced game-based learning, fostering greater interactivity and engagement in chemistry education. This innovation is aligned with the United Nations' Sustainable Development Goal number 4 (SDG4), which is quality education that utilises technology and interactive 21st-century learning.

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