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Chemistry Education Practice
Published by Universitas Mataram
ISSN : 26548119     EISSN : 26563940     DOI : -
Core Subject : Education,
Education
Jurnal Chemistry Education Practice (ISSN Cetak 2654-8119 dan ISSN Online 2656-3940) adalah jurnal peer-review yang diterbitkan oleh Program Pendidikan Kimia, Fakultas Pendidikan Guru Pelatihan dan Pendidikan, Universitas Mataram. Jurnal ini merupakan jurnal open access. Jurnal Chemistry Education Practice mencakup semua aspek penelitian dan praktik pendidikan kimia. Jurnal ini menerbitkan makalah penelitian asli, komunikasi singkat, diseminasi, dan diskusi penelitian, pengalaman dan perspektif di berbagai pendidikan kimia, pengajaran, pengembangan, pengajaran, proyek dan inovasi pendidikan, metodologi pembelajaran dan teknologi baru dalam pendidikan kimia dan pembelajaran. Jurnal Chemistry Education Practice diterbitkan dua kali dalam setahun, yaitu setiap bulan Mei dan November.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 262 Documents
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Uji Karakteristik Enzim Lipase Dari Biji Nyamplung (Calophyllum Inophyllum L) Sebagai Media Pembelajaran Biokimia dalam Bentuk Buletin Juniarly, Lalu Anugrah Dimas; Hakim, Aliefman; Burhanuddin, Burhanuddin
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.9771

Abstract

This study aimed to develop a biochemistry learning media derived from experimental research on the characterization of lipase enzymes extracted from Calophyllum inophyllum (nyamplung) seeds. The development process employed a Research and Development (R&D) approach, adopting the ADDIE model (Analyze, Design, Development, Implementation, and Evaluation). The study was limited to the development phase. The learning media was evaluated through two primary dimensions: validity and practicality. Data collection involved the distribution of expert validation instruments to subject-matter lecturers and practicality response instruments to students via Google Forms. A purposive sampling technique was employed, targeting Chemistry Education students from the 2020 and 2021 cohorts who had enrolled in the Biochemistry I course. A total of 30 students were randomly selected from this pool. The validity assessment conducted by expert validators yielded a score of 90.5%, indicating that the media falls within the "highly valid" category. Similarly, the practicality test, based on student responses, resulted in a score of 91.5%, which is classified as "highly practical”. These findings indicate that the developed biochemistry bulletin is both valid and practical, thus offering strong potential for use as an effective instructional tool in biochemistry learning contexts.
Pengaruh Metode Pembelajaran Inkuiri Terbimbing Berbasis Phet Simulation Terhadap Hasil Belajar Kimia Materi Asam Basa Pada Siswa Kelas XI F SMA Negeri 1 Alas Vidia, Nila Vidia Ekayanti; Haris, Mukhtar; Sofia, Baiq Fara Dwirani
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.9782

Abstract

This study aims to analyze the effect of guided inquiry learning method based on PhET simulation on the learning outcomes of chemistry on acid-base material in class XI F students of SMA Negeri 1 Alas. The type of experimental research is pre-experimental with one group pretest-posttest research design. The population is 165 students with a sampling technique using purposive sampling, namely class XI F4 which consists of 33 students. Class determination is based on the number of students who do not meet the Learning Objective Completion Criteria (KKTP). Data collection techniques use test instruments, active observation, and questionnaires. The average pretest score is 21.5152 and the average posttest score is 79.3333. The results show that the average N-gain score is 0.71 with a high category. The t-test results obtained a Sig. (2-tailed) value of 0.000 <0.05, so H0 is rejected and Ha is accepted. Meanwhile, the percentage of student activity was 74.02% with a good category and student responses to learning were included in the very interested category with an average interest of 84.02%. The results of this study can be concluded that the use of guided inquiry learning methods based on PhET simulation on acid-base material can improve the chemistry learning outcomes of class XI F students of SMAN 1 Alas.
Pengembangan Tes Uraian Untuk Identifikasi Profil Keterampilan Berpikir Kritis Materi Ikatan Kimia Siswa Kelas XI SMAN 7 Mataram Nur Ismiyahyi; Loka, I Nyoman; Muti’ah, Muti’ah
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.9932

Abstract

This research is a type of Research and Development (R&D) with the 4D model (Define, Design, Develop, Disseminate) which aims to develop a description test instrumen to identify critical thinking skills of class XI students of SMAN 7 Mataram on chemical bonding material. The instrumen was developed by fulfilling the criteria of validity, reliability, level of difficulty, and distinguishing power. Validation was carried out by three experts, consisting of two Chemistry Education lecturers at Mataram University and one chemistry teacher at SMAN 7 Mataram. The results of content validity using Aiken's V with an average value of 0.82 which is classified as having a very high level of validity. Empirical validity states that all seven items are valid with the highest value reaching 0.83. The reliability test rcount of 0.813 is greater than the rtable indicates the item is reliable. The level of difficulty of the questions is in the medium category which ranges from 0.52-0.66. Differentiating power is in the sufficient to very good category ranging from 0.26-0.72. Students' critical thinking skills assessed using the developed instrumen were sufficient with an average value of 58.
Development of Case-Based Electronic Student Worksheets (E-LKPD) on Carbohydrate Metabolism Disorders for Science Education Students Qomaliyah, Eka Nurul; Habiddin, Habiddin
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10128

Abstract

 Biochemistry is one of the courses that encompasses broad and complex material, including metabolism. Students’ understanding of carbohydrate metabolism is often limited to theoretical and memorization aspects. Therefore, it is necessary to develop learning media that support interactive and more meaningful learning. This study aims to develop a case-based Electronic Student Worksheet (E-LKPD) on carbohydrate metabolism disorders for students in the Science Education Program. The research employed the Research and Development (R&D) method with the development stages of Define, Design, and Develop. Data were obtained from expert validation as well as user response questionnaires involving 25 science education students. The results of material validation, language validation, and output validation showed “high validity and feasibility,” while user questionnaires indicated an average 90% “very good” response and agreement to use the E-LKPD in Biochemistry learning. Thus, the case-based E-LKPD on carbohydrate metabolism disorders is considered feasible to be used as a learning medium in Biochemistry courses, particularly in supporting case-based and student-centered learning.
Pengembangan Media Pembelajaran Berbasis Augmented Reality (AR) Berbantuan Aplikasi Assemblr Edu Pada Materi Bentuk Molekul Pratama, Fathoni Arif; Jeckson Siahaan; Nora Listantia
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10144

Abstract

This study aims to determine the level of validity of the content and suitability of augmented reality (AR)-based learning media developed using the Assemblr Edu application for molecular structure material. This study employs the Design-Based Research (DBR) method with the ADDIE (Analysis, Design, Development, Implementation, Evaluation) model, modified up to the development stage. Data collection techniques include interviews, validity questionnaires, and media feasibility questionnaires. Data validity analysis uses Aiken’s V formula, while media feasibility is measured using a percentage formula. The learning media product was tested on 28 eleventh-grade students at SMAN 1 Wanasaba. The validity test results showed that the media was highly valid with an Aiken’s V value of 0.92. The feasibility test results showed that the media was highly feasible with a percentage of 86.86%. This media is deemed valid and suitable for use as an innovative learning alternative to enhance students' understanding of molecular structure concepts. This study demonstrates that integrating AR technology into learning can serve as a strategic tool for optimizing the visualization of abstract concepts in a contextual, engaging, and relevant manner aligned with 21st-century needs.
The Pengaruh Model Pembelajaran POE (Predict, Observe, Explain) Terhadap Hasil Belajar Kimia Materi Asam Basa Pada Siswa Kelas XI SMAN 1 Langgudu Lia, Nurkamaliah; Siahaan, Jeckson; Haris, Mukhtar
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10146

Abstract

This study aims to determine the effect of POE (Predict, Observe, Explain) learning model on chemical learning outcomes of acid-base material in class XI IPA SMAN 1 Langgudu. This type of research is a quasi experimental design. The population is all students of class XI IPA SMAN 1 Langgudu which amounted to 50 people. The sampling technique used saturated sampling. Determination of control and experimental classes is based on the average value of the midterm assessment, students of class XI IPA 1 obtained a greater average value of 78.76 than class XI IPA 2 which is 70.16 so that class XI IPA 1 is designated as the control class and XI IPA 2 as the experimental class. Data collection techniques using test instruments. The average value of the experimental class pretests (49.12) was lower than the control class (52.28). While the average value of the experimental class posttest (84.4) is higher than the control class (76.92). The N-Gain test results show that the increase in learning outcomes of experimental class students is more in the high category than the control class. The t-test results obtained tcount of 2.4091> ttable 2.0106 then H0 is rejected and Ha is accepted. While the results of the percentage of student activeness of the experimental class at each meeting were higher than the control class, so that experimental class students were more active than the control class. The results of this study can be concluded that the POE learning model (Predict, Observe, Explain, and Explain) is an effective learning model.
Pengembangan Majalah Kimia Dengan Konten Kondensasi Formaldehida Sebagai Suplemen Bacaan Pada Perkuliahan Mekanisme Dan Sintesis Senyawa Organik Rahmawati, Rahmawati; Hidayati, Elya; Al Idrus, Syarifa Wahidah
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10593

Abstract

The Organic Compound Mechanism and Synthesis Lecture (MSSO) is one of the important courses in the chemistry education study program, which discusses the process of forming organic compounds through various chemical reaction. The limited learning media used, which is only in the form of textbooks, also causes the learning process to be less interesting. Therefore, an interesting and easy to understand learning media innovation is needed. This research aims to develop a reading supplement in te form of a chemical magazine with formaldehyde condensation content as supporting media for MSSO lectures, as well as to determine the level of validity and feasibility. The research methode used is research and development (R&D) with a 4D (define, design, develop, disseminate) model. The result of the validation of the chemical magazine by 3 (three) validators showed a validity coefficient value of 0,93 with a very valid category, and a reliability value of 95%. Student responses to chemistry magazines showed a very practical category with a score 84.98%..
Pengaruh Problem Based Learning Berbantuan Media Chemcollective pada Materi Larutan Penyangga Terhadap Keterampilan Berpikir Kritis Siswa Kelas XI SMAN 1 Narmada Febrianti, Nia; Andayani, Yayuk; Haris, Mukhtar
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10748

Abstract

This study aims to explain the effect of media-assisted problem-based learning using ChemCollective on buffer solution material on the critical thinking skills of 11th grade students at SMAN 1 Narmada. This quasi-experimental study used a nonequivalent control group design and was conducted in classes XI F5 and XI F6 with a total of 72 students. Cluster sampling was used as the sampling technique. The determination of the experimental class and control class was based on the lower average pretest score as the experimental class and the higher score as the control class. The pretest results obtained in class XI F5 were 53.44 and class XI F6 were 59.69, so class XI F5 was the experimental class and class XI F6 was the control class. The data collection technique used a two-tier multiple-choice test instrument. The results showed that the average N-Gain score was 0.6 in the experimental class and 0.34 in the control class, both of which were in the moderate category. The t-test result obtained was tcount (4.25) > ttable (1.994), so Ho was rejected and Ha was accepted. It can be concluded that the use of media-assisted problem-based learning chemcollective on buffer solution material had an effect on improving the critical thinking skills of grade XI students at SMAN 1 Narmada.
Pengaruh Model Pembelajaran Kooperatif Talking Stick Terhadap Hasil Belajar Kimia Siswa Kelas XI Pada Materi Koloid Widiawati, Widiawati; Siahaan, Jeckson; Hadisaputra, Saprizal
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10839

Abstract

This study aims to examine the effect of the cooperative learning model Talking Stick on students’ learning outcomes in the colloid topic among Grade XI students at MA NWDI Wakan. A quasi-experimental method with a pretest–posttest control group design was employed. The sample consisted of 40 students from classes XI MIPA 1 and XI MIPA 2. Data were analyzed using N-Gain analysis, normality testing, homogeneity testing (F-test), and hypothesis testing with an independent t-test. The hypothesis testing at a significance level of α = 0.05 yielded a t-value of 3.972, which exceeded the t-table value of 2.024, indicating a significant difference between the experimental and control groups. These findings demonstrate that the implementation of the Talking Stick cooperative learning model has a positive effect on students’ learning outcomes in the colloid topic.
Analisis Kemampuan Representasi Peserta Didik Pada Praktikum Kimia Materi Asam Basa Kelas Xi Sains SMAN 2 Mataram Fitriani, Nurul; Muntari, Muntari; Firmansyah, Dodiy
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10861

Abstract

This study aims to analyze the chemical representation abilities of students at the macroscopic, submicroscopic, and symbolic levels in acid-base material practicums in class XI Science of SMAN 2 Mataram. The type of research is descriptive quantitative. The study population was 288 students of class XI SMAN 2 Mataram. The research sample was selected using purposive sampling technique obtained by class XI Science 7 students totaling 36 students and class XI Science 8 students totaling 36 students. Data collection techniques used interview, observation, documentation, and test instruments. Data analysis used N-gain percentage. The results showed that students' initial chemical representation abilities were relatively low, with an average pretest of 34.50% (macroscopic), 31.00% (submicroscopic), and 35.00% (symbolic). After the lab-based learning, posttest results showed significant improvements at all levels of representation, namely 85.25% (macroscopic), 78.25% (submicroscopic), and 76.50% (symbolic). The average total improvement increased from 33.50% to 79.99%, and is considered good. These results indicate that the chemistry lab is effective in improving students' representational skills on acid-base material.

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