ALOTROP

Development of an Electronic Module Using the 7E Learning Cycle Strategy for Chemistry Learning in Grade XI on the Topic of Chemical Equilibrium

Hayyun Lisdiana, Dian Triwidiastuti, Tiwi Nur Astuti — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to develop an electronic module using the 7E Learning Cycle strategy in chemistry learning in the form of a flipbook on chemical equilibrium for grade XI. The research method used is Research and Development (RnD) with the ADDIE research model, which includes the stages of analysis, product design, product development, product implementation, and final evaluation of the product. The research is based on the limited use of digital technology in learning and the lack of variation in teaching materials used during the lessons. Based on the needs analysis, there is a need for improvement in the presentation of teaching materials to make them more varied. The expert validation results indicate that the developed electronic module is valid and feasible to use. Based on the trial results of the electronic module, a satisfaction percentage of 89% was obtained, indicating that this electronic module is able to attract students' interest in learning chemistry because it is practical to use

Keywords: Electronic Module, Chemical Equilibrium, 7E Learning Cycle, Learning Chemistry

PENGEMBANGAN E-MODUL PENUNTUN PRAKTIKUM KIMIA MATERI TITRASI ASAM BASA

Nina Kurnia, Dewi Handayani, Elvinawati — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to determine the feasibility, student responses, and students' psychomotor assessments when using the developed e-module for chemical practicum guidance on acid-base titration. The development of this e-module uses the ADDIE development model limited to the development stage. This study was conducted in class XII.MIPA C of SMA Negeri 2 Kota Bengkulu with 12 students as research subjects. The instruments used in this study were interview sheets, student needs questionnaires, expert validation sheets, student response questionnaires, and student psychomotor assessment sheets. Based on the results of the study, the results of the e-module feasibility test by expert validators were 91.2% with a very valid category. The results of the student response test on the e-module for chemical practicum obtained a percentage of 85.7% with a very good category, and the results of the student psychomotor assessment during the practicum using the e-module guidance obtained a percentage of 93% with a very good category.

Keywords: E-Module; Development of Practical Guide; Acid-Base Titration

Development of Integrated E-Module Projects on Synthetic Polymer Materials at MAN 1 Bengkulu City

Nabilla Aprillia Nur Suandi, Rina Elvia, Sura Menda Ginting — Tue, 30 Dec 2025 00:00:00 +0000

Students’ understanding of synthetic polymer topics was still low due to the abstract nature of the material and the lack of supporting teaching resources. This study focused on developing a project-integrated chemistry e-module on the topic, aiming to produce a valid, practical, and effective learning resource. The development model used was ADDIE, which consisted of analysis, design, development, implementation, and evaluation stages. The validation results showed that the e-module was very feasible in terms of content with a score of 94% and feasible in terms of media with a score of 73%. After revision, the media score increased to 96% with a very feasible category. A small-scale trial involving 12 students of grade XII in the 2024/2025 academic year obtained very positive responses with an average of 94%. The implementation with 27 students of grade XI IPA 1 MAN 1 Bengkulu through pre-test and post-test resulted in an N-Gain score of 0.74 (high category). These findings proved that the developed e-module was effective in improving students’ understanding and was feasible to be used as an alternative chemistry learning resource on synthetic polymers.

Characterization of a Biochemistry Laboratory Practicum Based on Local Bengkulu Context

Nadia Amida, Florentina Maria Titin Supriyanti — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to identify the characteristics of a biochemistry practicum program on DNA isolation from local Bengkulu citrus, developed to enhance students’ systems thinking skills. A descriptive analysis was conducted through the review of course outlines, practicum implementation documents, student learning modules, and worksheets, as well as observations of practicum sessions and evaluations of students’ learning experiences. The practicum program was implemented with 37 students enrolled in a Biochemistry course at a public university in Bandung. The findings reveal three key characteristics. First, the practicum was restructured from a textbook-based model into a contextual practicum using local Bengkulu citrus as an authentic sample. Second, the practicum employed modern laboratory tools—including microtubes, micropipettes, vortex mixers, and centrifuges—which improved the accuracy of DNA isolation and visualization. Third, the activity design integrated systems thinking skills through component analysis, process interrelationships, and result interpretation. Overall, the developed practicum is contextual, modern, and systems-oriented, enhancing both the relevance and quality of students’ laboratory learning experiences

DEVELOPMENT OF DIGITAL SNAKE AND LADDER GAME MEDIA FOR BASIC CHEMICAL LAW MATERIAL

Dinda Rifanna Elfiza, Hermansyah Amir, Sura Menda Ginting — Tue, 30 Dec 2025 00:00:00 +0000

This research is a research and development (R&D) that aims to produce a product in the form of a web-based digital snakes and ladders game on fundamental law in chemistry. This study aims to determine the results of feasibility reviewed by experts, student responses, and implementation results after using digital snakes and ladders game media. This research uses the ADDIE development model which includes the stages of analysis, design, development, implementation, evaluation. Response test subjects were students of SMAN 8 Bengkulu City class X-2 totaling 35 students and implementation test class X-1 totaling 35 students. The instruments used in this study include interview sheets, observation sheets, students need analysis questionnaires, validation sheets, and students response questionnaires. The results of the validation of the digital Snake and Ladder Game on fundamental law in chemistry were declared very feasible by material and media validators with an average score of 4.59 and 4.59 respectively. Students' responses to the digital Snake and Ladder Game on fundamental law in chemistry included very good criteria with an average score of 4.14. The results of the implementation of digital Snake and Ladder Game on basic chemical law material get a percentage of 82.4% which includes very good criteria. It can be concluded from the results of the study that the digital Snake and Ladder Game on fundamental law in chemistry is feasible to be applied to learning with this material.

APPLICATION OF GOOGLE SITES LEARNING MEDIA ON BUFFER SOLUTION MATERIAL FOR STUDENT LEARNING OUTCOMES

Siti Zakina, Luki Yunita, Aini Nadhokhotani Herpi — Tue, 30 Dec 2025 00:00:00 +0000

[The Application of Google Sites Learning Media on Buffer Solution Material for Student Learning Outcomes] This study aims to examine the application of Google Sites learning media on buffer solutions for student learning outcomes. The studyused a quasi-experimental method with a nonequivalentcontrol group design involving 66 12th grade students at SMAN 87 Jakarta. The research instrumentwas a multiple-choice test that had been validated through expert assessmentand empirical testing. Data analysis was performed using descriptive statisticsand an independent t-test to identify differences in learning outcomes betweenthe two groups. The results showed that the average post-test scoreof the experimental class (90.27) was higher than that of the control class (82.15) becauselearning using Google Sites provided access to materials that were moreinteractive, structured, and easier for students to understand. The independent t-testproduced a sig value (2-tailed) <0.0001, indicating a significant differencebetween the two classes. Thus, the application of Google Siteswas very effective in improving student learning outcomes on buffer solution material.

Keywords: Learning Outcomes; Buffer Solution; Google Sites.

DEVELOPMENT OF AN ELECTRONIC ACID-BASE MODULE BASED ON ETHNOSCIENCE WITH THE CULTURALLY RESPONSIVE TRANSFORMATIVE TEACHING (CRTT) MODEL

Trisia Monica Zeles, Rina Elvia, Wiwit — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to improve students’ conceptual understanding in a contextual and meaningful
way through the development of an acid-base e-module based on ethnoscience using the Culturally
Responsive Transformative Teaching (CRTT) model. The research employed a Research and
Development (R&D) method with the 4D model, limited to the Develop stage. The instruments used
included validation sheets, student response questionnaires, and concept understanding tests.
Validation results showed that the e-module was highly valid, with a score of 82.72% for content
and 87% for media. Student responses were also very positive, with a score of 90.66%. The average
N-Gain was 0.83, indicating a high increase in conceptual understanding, particularly in the
indicator of relating concepts (0.86). The e-module integrates local ethnoscientific elements from
Rejang Lebong culture, such as lemea and candied kedondong, into the acid-base topic. The
findings suggest that this e-module is effective for chemistry learning and serves as an innovative,
contextual teaching material that supports local cultural preservation.
Keywords: E-module, Acid-Base, Ethnoscience, CRTT, Concept Understanding.

Development of Interactive Learning Media for Complex Reaction Kinetics as An Effort To Stimulate Students' Systematic Thinking Abilities

Rina Elvia, I Nyoman Candra, Nurhamidah — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to develop interactive learning media on the topic of complex reaction kinetics as an effort to stimulate students' systematic thinking skills. This type of research is development research using the ADDIE model. The test subjects in this study were students of the Chemistry Education Study Program who participated in the Chemistry Kinetics course in the 2022/2023 academic year. The data collection techniques in this study included feasibility data from the developed media based on expert validation of the media and material, as well as responses from students participating in the course regarding the developed media. The instruments used in this study were a questionnaire on the needs of course participants, a validation sheet, and a student response questionnaire. The results showed that the interactive learning media developed was deemed very feasible from the perspective of media and material validation, with average percentages for media and material validation of 92.5% and 93.75%, respectively. The results of the response test of students taking the Chemical Kinetics course to the interactive media developed showed an average score percentage of 86.6% and was in the very good category. The responses of the students also showed that the media developed could stimulate students' systematic thinking skills in the topic of complex reaction kinetics.

Integration of Islamic Values In Thermochemistry Teaching Materials in High School/Islamic High School For Grade XI

Triana Krisandini, Kristina Mulia — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to produce chemistry teaching materials for Thermochemistry that contain Islamic values. The development of teaching materials was carried out using the Four Steps Teaching Material Development (4STMD) method. This study focuses on the Design and Development stages. The results of the teaching material development at the Design stage produce a teaching material design. The Development stage in developing teaching materials uses the Four Steps Teaching Material Development (4STMD) method, which consists of four stages: selection, structuring, characterization, and didactic reduction. The first stage begins with a selection process that produces 11 competency achievement indicators and 18 concept labels that must be developed. In the source selection step, 2 international textbooks and 1 high school textbook were used. The results obtained at the structuring stage are concept maps; macro structures and three levels of representation that are in accordance with the context of daily life and Islamic values. Characterization was carried out by 30 high school students and it was found that 4 texts were included in the difficult to understand category so that didactic reduction was carried out. The results of the didactic reduction stage were texts that were difficult for students to understand were given treatment with a type of didactic reduction back to the qualitative and neglect stages. The conclusion obtained from the results of this development research was the formation of chemistry teaching materials for Thermochemistry material that integrated Islamic values.

PERBANDINGAN PENERAPAN MOOCs DAN WHATSAPP MENGGUNAKAN MODEL PROJECT-BASED LEARNING PADA MATA KULIAH KIMIA ORGANIK 1 TERHADAP HASIL BELAJAR MAHASISWA

Dewi Handayani, Elvinawati, Mellyta Uliyandari — Tue, 30 Dec 2025 00:00:00 +0000

This study aims to improve the quality of learning in Organic Chemistry 1. The specific objective of this study is to determine the difference in learning outcomes between students who use MOOCs (Massive Open Online Courses) and WhatsApp using the Project-Based Learning model. The type of research used is quasi-experimental research with a sample of third-semester students from Class A and Class B. This study uses two experimental classes, namely Class A using MOOCs and Class B using the WhatsApp application. The data analysis used is the average score, homogeneity test, normality test, and t-test. Based on the research results, there is a difference in learning outcomes between MOOCs and WhatsApp Group (WAG) applications with the same learning model treatment, namely the PjBL model, with a sig value (2-tailed) of 0.000, indicating p < 0.05. It can be concluded that there is a significant difference in the learning outcomes of the two experimental classes. Student responses to MOOCs and WAG applications are very good. Students stated that MOOCs and WAG applications are very practical, interesting, and easily accessible, especially for access to learning materials.

Keywords: MOOCs, WhatsApp, Learning Outcomes, Project-based learning