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All Journal Microbiology Indonesia Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) JURNAL PENGABDIAN KEPADA MASYARAKAT Chimica et Natura Acta JURNAL SAINS INDONESIA Jurnal Pendidikan Kimia (JPKim) Pendas : Jurnah Ilmiah Pendidikan Dasar Journal Analytica Islamica Efektor Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal Paedagogy Jurnal Pengabdian UNDIKMA Gagasan Pendidikan Indonesia Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Indonesian Journal of Chemical Science and Technology Jurnal Teknologi Pendidikan : Jurnal Penelitian dan Pengembangan Pembelajaran Journal of Science and Science Education (JoSSEd) Jurnal Pengabdian Masyarakat Bestari (JPMB) JGK (Jurnal Guru Kita) Abdimas Mandalika al Kimiya : Jurnal Ilmu Kimia dan Terapan Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Abdimas Ilmiah Citra Bakti Jurnal Bioteknologi & Biosains Indonesia
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THE EFFECT OF ASSMBLR EDU APPLICATION USE ON HIGH SCHOOL STUDENTS' INTERESTS AND LEARNING OUTCOMES IN HYDROCARBONS Faros Nabawi Siregar; Saronom Silaban
Journal Analytica Islamica Vol 15, No 1 (2026): ANALYTICA ISLAMICA
Publisher : Program Pascasarjana UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jai.v15i1.28394

Abstract

This study aims to analyze the effect of using the Augmented Reality (AR)-based Assemblr Edu application on high school students' learning interest and cognitive learning outcomes in hydrocarbon material. The study used a quasi-experimental approach with a nonequivalent control group design, involving two classes selected through cluster random sampling techniques, namely the experimental class using Assemblr Edu and the control class with conventional learning. The research instruments included a multiple-choice learning outcome test and a Likert-scale learning interest questionnaire. Data analysis was carried out through normality tests, homogeneity tests, and independent t-tests. The results showed a significant difference between student learning outcomes in the experimental and control classes (Sig. 2-tailed = 0.000 < 0.05), which indicates that the use of Assemblr Edu has a positive effect on improving student learning outcomes. In addition, student learning interest in the experimental class was in the very high category with an average score of 3.56. These findings indicate that three-dimensional and interactive visualization of chemical concepts through AR can increase students' affective engagement and cognitive understanding. Thus, Assemblr Edu has the potential to be an effective, innovative learning medium for abstract chemistry material.
Isolation of Chitin from the Shell of the Blue Crab (Portunus pelagicus) and a Review of Its Potential as a Cholesterol - Lowering Agent Evatiara Sihotang; Saronom Silaban
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 9 No. 2 (2026): JULY 2026
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v9i2.71959

Abstract

The swimming crab (Portunus pelagicus) is a fishery commodity that produces large amounts of shell waste and has the potential to be used as a source of chitin. This study aims to isolate chitin from swimming crab shells through demineralization and deproteinization processes and then characterize it using FTIR, accompanied by a literature review regarding the potential of chitin as a cholesterol-lowering agent. The demineralization stage produced a yield of 35.07%, while the yield of chitin after deproteination reached 87.10%. FTIR analysis showed typical chitin absorption bands, namely N–H stretching (3255 cm⁻¹), Amide I (1621 cm⁻¹), Amide II (1552 cm⁻¹), C–O–C asymmetric stretching (1154 cm⁻¹), and β-(1→4) glycosidic bonds (872.8 cm⁻¹), which confirmed the formation of the chitin structure. Based on a literature review, chitin and chitosan have the potential to lower cholesterol levels through bile acid binding and reduced lipid absorption. Therefore, chitin from crab shell waste is suitable for development as a raw material for bioactive chitosan, although further biological testing is needed
EFEKTIVITAS MODEL DISCOVERY LEARNING DALAM PEMBELAJARAN IKATAN KIMIA TERHADAP HASIL BELAJAR DAN PEMAHAMAN KONSEP SISWA Melvira Alifia Panggabean; Saronom Silaban
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 Nomor 03, September 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.56326

Abstract

This study aims to examine the effectiveness of the Discovery Learning model on student learning outcomes and conceptual understanding in chemical bonding material, as well as to determine the correlation between learning outcomes and conceptual understanding. This study used a quasi-experimental design with a pretest-posttest control group design in two classes selected randomly. The instrument was a multiple-choice test that met the criteria for measuring learning outcomes and conceptual understanding. Data were analyzed using normality tests, homogeneity tests, and independent sample t-tests. Normality tests showed that all data were normally distributed. Homogeneity tests showed that the data were homogeneous. The results showed that the learning outcomes of the experimental class (79.85) were higher than those of the control class (73.03) with a sig. value of 0.000 < 0.05. Conceptual understanding in the experimental class (72,12) was also higher than in the control class (62,87) with a sig. value of 0.034 < 0.05. Additionally, there is a positive correlation between learning outcomes and conceptual understanding with r = 0.798 and sig. 0.000 < 0.05. Thus, the Discovery Learning model is effective in improving learning outcomes and conceptual understanding, and the correlation between the two is classified as high.
Co-Authors Albinus Silalahi Arfika, Nurul Asmi, Andalia Atika, Liana Boangmanalu, Eka Putra Dairi Dede Ruslan DEDE RUSLAN Dodi Pramana Eddiyanto Eddiyanto Eka Putra Dairi Boangmanalu Evatiara Sihotang Evrida Manalu Faros Nabawi Siregar Ginting, Susanna Gurning, Biworo Frida Hariono Hariono Hesti Fibriasasi Iman Permana Maksum Juniastel Rajagukguk Juniastel Rajagukguk, Juniastel Khairani Islamiyah KHOMAINI HASAN Lenti Susanna Saragih Limbong, Rachel Wandira Lukman, Mena Fadilia Lukman, Mena Fadillia Marudut Sinaga Melvira Alifia Panggabean Murniaty Simorangkir Partomuan Simanjuntak Pohan, Ade Hermansyah Putri Novira Rajagukguk, Suryana Ramlan Silaban Rani Adillah Ribu Surbakti, Ribu Saragih, Lenti Susanna Saragih, Martua Haojahan Sembiring, Julia Marantika Setiawan, Mhd Arif Shabarni Gaffar Siahaan, Sabda Dian Nurani Sibarani, Choms Gary Ganda Tua Siregar, Litani Siti Ulgari SOETIJOSO SOEMITRO Sriadhi Sriadhi, Sriadhi SUTARYA ENUS Tita Juwitaningsih Tonel Barus, Tonel Toto Subroto Ulgari, Siti Wirda Hayatina Lubis, Wirda Hayatina Yeni Purba, Fince Putri