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Jurnal Zarah
Published by Universitas Maritim Raja Ali Haji
ISSN : 23547162     EISSN : 25492217     DOI : -
Core Subject : Science, Education,
Chemistry Education
Jurnal Zarah menerbitkan artikel hasil penelitian, pengembangan, dan kajian literatur tentang berbagai topik dalam bidang Pendidikan Kimia dan Ilmu Kimia.
Arjuna Subject : -
Articles 214 Documents
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THE CHEMISTRY INTEREST DIVIDE MALE VS. FEMALE STUDENTS AT PENAJAM PASER UTARA HIGH SCHOOL Aprilia Sandra Kartika; Nurhadi, Mukhamad; Catherine Watulingas, Maasje
Jurnal Zarah Vol. 14 No. 1 (2026): Jurnal Zarah
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v14i1.7949

Abstract

Learning interest is one of the factors that greatly influences students’ success in understanding the subject matter. In high school chemistry learning, learning interest plays an important role because chemistry requires conceptual understanding, analysis, and application in everyday life. However, in reality, students’ learning interest often differs between male and female students. Gender is assumed to be one of the factors influencing these differences, whether in terms of participation, or tendencies in the learning process.  This study aims to determine the level of learning interest of male and female students in chemistry subjects. This research employed a quantitative descriptive design with the population consisting of senior high school students in the PPU region, using the proportionate stratified random sampling technique. The sample was determined using the Slovin formula with a margin of error of 10%, resulting in a total of 113 students, consisting of 47 male students and 66 female students. Data were collected using a non-test technique in the form of a learning interest questionnaire. The final results showed that the percentage of learning interest among male students was 72%, indicating that most male students had a high level of learning interest in chemistry. Meanwhile, female students achieved a percentage of 82%, which indicates that almost all female students had a very high level of learning interest in chemistry.
IMPLEMENTATION OF THE REMAP-CIRC LEARNING MODEL TOWARD HIGH SCHOOL STUDENTS’ LEARNING OUTCOMES IN ACID-BASE TOPICS Giawa, Agusto Jeremia; Sukemi, Sukemi; Rahmadani, Agung; Lestari, Indah
Jurnal Zarah Vol. 14 No. 1 (2026): Jurnal Zarah
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v14i1.8136

Abstract

Students’ difficulty in understanding abstract and complex acid-base concepts requires the implementation of appropriate learning strategies. This study aims to evaluate the effectiveness of the Reading Concept Map-Cooperative Integrated Reading and Composition (REMAP-CIRC) learning model in improving students’ learning outcomes on acid-base topics. This research employed a pre-experimental method using a one-group pretest–posttest design. The participants consisted of 33 eleventh-grade students (Class XI-4) enrolled in the science track at State Senior High School 17 Samarinda during the 2024/2025 academic year. Data were collected through pretest and posttest instruments, as well as student response questionnaires. The data were analyzed using the Wilcoxon test to determine significant differences between pretest and posttest scores. The results showed that the average student score increased from 28.18 (pretest) to 73.64 (posttest). The N-Gain value was 0.61, categorized as moderate, while the effect size was 3.14, indicating a very high effect. In addition, the student response questionnaire showed a positive response with an average percentage of 79.84% (good category). Based on these results, it can be concluded that the REMAP-CIRC learning model is effective in improving students’ learning outcomes on acid-base topics.
IDENTIFYING STUDENTS' MISCONCEPTIONS IN CHEMICAL EQUILIBRIUM MATERIAL USING A FIVE-TIER MULTIPLE CHOICE DIAGNOSTIC TEST Wulandari, Putri Adita; M. Fikri; Abdullah; Putri, Tiara Swastika
Jurnal Zarah Vol. 14 No. 1 (2026): Jurnal Zarah
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v14i1.8138

Abstract

This study aims to identify the profile of students' misconceptions on chemical equilibrium and to determine the sources of these misconceptions. This study used a descriptive method with quantitative and qualitative approaches and was conducted at SMA Negeri 7 Pekanbaru. The research subjects involved 187 11th-grade students who had studied chemical equilibrium. Data collection was conducted using a five-level diagnostic test instrument consisting of 15 questions and structured interviews. The results showed that the average percentage of students experiencing misconceptions was relatively low, at 20.93%. Analysis of the sources of misconceptions showed that the main cause of misconceptions came from students' personal thoughts, with a percentage of 24.15%. Other contributing sources included friends (20.66%), teachers (18.78%), the internet (18.35%), and books (18.06%). These findings indicate that students' misconceptions are more influenced by independent constructions of understanding that do not align with scientific concepts than other external factors.
HEAVY METAL BIOACCUMULATION IN SEAGRASS AND SARGASSUM ACROSS INDONESIAN COASTAL WATERS: ECOLOGICAL RISKS AND IMPLICATIONS FOR SUSTAINABLE COASTAL MANAGEMENT: A SYSTEMATIC REVIEW Nur Cholis, Nur Cholis; Madumetha, Gemala; Wijaya, Kusuma; Viruly, Lily; Willian, Nancy
Jurnal Zarah Vol. 14 No. 1 (2026): Jurnal Zarah
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v14i1.8216

Abstract

Heavy metal contamination poses a significant threat to Indonesian coastal ecosystems, particularly seagrass meadows and brown seaweeds such as Sargassum, which function as primary producers and environmental bioindicators. This study systematically reviews heavy metal accumulation in seagrass and Sargassum in Indonesian waters and examines its ecological and management implications. A systematic literature review was conducted following the PRISMA 2020 framework, covering studies published between 2016 and 2025 from Scopus, ScienceDirect, Web of Science, Google Scholar, and Garuda. Articles were included if they reported empirical data on heavy metal contamination in seagrass or Sargassum in Indonesia. After screening and quality assessment, 20 studies were selected for thematic synthesis. The results show that lead (Pb) and cadmium (Cd) were the most frequently reported metals exceeding quality standards, identified in 14 of 20 studies. Mercury (Hg) was detected at several sites, while nickel (Ni) and iron (Fe) were mainly associated with mining areas. Higher accumulation was observed in seagrass leaves and Sargassum thalli, particularly in areas influenced by ports, industry, tourism, settlements, and mining. These findings indicate potential ecological risks, including reduced primary productivity and trophic transfer. Overall, seagrass and Sargassum demonstrate strong potential as biomonitors of heavy metal contamination in Indonesian coastal waters.

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