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UNESA Journal of Chemical Education
  • journal-of-chemical-education
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Published by Universitas Negeri Surabaya
ISSN : 22529454     EISSN : 22529454     DOI : https://doi.org/10.26740/ujced.v9n3
Core Subject : Science, Education,
Chemistry Computer Science & IT Education Other
UNESA Journal of Chemical Education is Online Journal for communicating and reviews covering all chemical education research which published articles in three times a year by Chemistry Department, Chemical Education Study Program, Faculty of Mathematics and Natural Sciences, State University of Surabaya. This Journal provides readers or authors to present learning development in chemical education through publication research articles. Scope and focus in this journal are: 1. Philosophy and curriculum of Chemical education 2. Innovation and Theory of Learning 3. Media of Chemistry Learning 4. Assessment of Chemistry Learning 5. Missconception in Chemistry UNESA Journal of Chemical Education publishes research articles which are reviewed by expert lecturers. This journal is open access which can used reader to update new issues in chemistry learning.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 496 Documents
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EFFECTIVENESS OF THINK-PAIR-SHARE STRATEGY IN ENHANCING STUDENTS’ ACADEMIC ACHIEVEMENT AND INTEREST IN DIFFICULT CHEMISTRY CONCEPTS Winifred Ifeoma Esiefa; Helen Drummond
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p46-53

Abstract

The failure rate in the subject chemistry at secondary school is on the increase and this has been attributed to students not understanding most of the difficult concepts which formed the foundation of the subject. The method that teachers adopt in the teaching of the subject and the manner the subject is taught may be factors that are responsible for poor performance. The methodology used is the quasi-experimental design using the pretest post-test non-equivalent control group. Quantitative and qualitative methods were employed. The population of the secondary schools used for the study was 1231, the sample size of 173 was used which was drawn using non-random sampling technique. Chemistry Achievement Test (CAT)Chemistry Interest Inventory (CII) and semi-structured interview were used for data collection. The instruments were test piloted and the internal coefficient obtained was 0.85 while the reliability index was 0.79. Mean and standard deviation were used to provide answers to the research questions and Analysis of Covariance (ANCOVA) was used to test the hypotheses. The students in the experimental group had higher interest levels with M=3.10 and Sd=0/43 for post-test compared to the students who were taught with conventional methods, with interest levels of M=2.77 and Sd=0.64. they also had higher achievement scores for the post-test in difficult chemistry concepts M=75.57 with Sd=13.76 than the control group M=63.40, SD=14.91. The think-pair-share strategy demonstrated an effective instructional approach for increasing student interest in the selected challenging chemistry topics: of solubility, hydrocarbon and metals and their compounds that were taught. The findings therefore underscore how effective this pedagogical strategy is in improving both students’ interest and achievement in these difficult chemistry concepts.
DEVELOPMENT OF STUDENT ACTIVITY SHEETS (SAS) ORIENTED ON PROJECT BASED LEARNING (PJBL) TO IMPROVE STUDENTS' CREATIVE THINKING SKILLS ON GREEN CHEMISTRY MATERIAL Liza Nurrahma Dwi Agustin; Mitarlis
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p26-37

Abstract

The purpose of this study was to produce student activity sheets (SAS) of project based learning to improve student’s creative thinking skills. This research used the Research and Development (R&D) method. with a 4D model, which includes the definition stage, design stage, development stage, and dissemination stage, but in this study, it was limited into the development stage. In this study, limited trials were conducted on 34 tenth grade high school students who had previously studied green chemistry material. The feasibility of the student activity sheets was reviewed in terms of validity, practicality, and effectiveness. The validity aspect obtained a mode of 4 with a good category. The practicality aspect, which was observed from the student response questionnaire, student activities, and implementation, obtained percentages of 96,9%, 95,5%, and 100%, respectively. The effectiveness aspect was reviewed from the improvement in students' creative thinking skills, the results of the improvement of creative thinking skills are stated with an average n-gain score of ≥ 0,7 in the high category. These results were also supported by the Wilcoxon test, which obtained a significance of 0,000 < 0,05. Based on its validity, practicality, and effectiveness, the student activity sheets (SAS) developed is suitable for use as a learning media.
DEVELOPMENT OF TEACHING MODULES BASED ON SETS (SCIENCE, ENVIRONMENT, TECHNOLOGY, SOCIETY) TO IMPROVE STUDENTS CRITICAL THINKING SKILLS IN GREEN CHEMISTRY MATERIAL Anisa Nabilah; Mitarlis
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p67-77

Abstract

This study aims to describe the feasibility of teaching modules based on SETS (Science, Environment, Technology, Society) to improve students’ critical thinking skills in green chemistry material. This study uses Thiagarajan’s 4D development research method with modifications from Ibrahim’s 3D method, which includes the define, design, and develop stages. Feasibility was assessed based on three aspects: validity, practicality, and effectiveness. Validity was assessed in terms of content and construct validity. Overall, in terms of content and construct validity, the module received a mode of 3 and 4, which are categorized as good and very good. Furthermore, practicality was reviewed from the student response questionnaire, which obtained an average of 94.81% in the excellent category, supported by the results of student activity observations of 89.04%, which showed active involvement in each stage of learning, and learning implementation of 97.65%, which confirmed that the entire series of activities was carried out very well. Meanwhile, the effectiveness of the teaching module based on SETS (Science, Environment, Technology, Society) can be seen from the increase in the average critical thinking skills test score from 28.72 to 83.86 with an average N-gain of 0.7718, which is in the high category. The Wilcoxon test results showed that all students experienced a significant increase (Z = -5.235; Sig. 0.000 < 0.05). Thus, the teaching module based on SETS was declared effective in improving students’ critical thinking skills in green chemistry material.
IMPROVING STUDENTS’ CHEMICAL LITERACY SKILLS THROUGH PROBLEM-BASED LEARNING MODELS ON STOICHIOMETRY TOPICS Ade Trisnawati; Adinda Amelia Permatasari; Meilisa Rusdiana Surya Efendi
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p38-45

Abstract

The purpose of this study was to determine students’ chemical literacy skills after being taught stoichiometry using a problem-based learning model. The Research design is a pre-experimental design with a one-group pretest-posttest design. The sample in this study was 13 new students of Chemical Engineering at PGRI Madiun University in the 2025/2026 academic year. Data collection used a context-based chemical literacy test carried out before and after PBL learning. Based on the Research, the pretest results showed that 100% of students had low chemical literacy, while the posttest results showed that 74% had low chemical literacy and 16% had moderate chemical literacy. Then, the analysis of students' chemical literacy levels from their pretest answers showed the highest percentage at the Scientific Illiteracy Level (72%) and the posttest results showed the most significant percentage at the Functional Scientific Literacy Level (32%). The implementation of PBL to improve students’ chemical literacy skills should consider several factors, such as the lecturer’s support for learning, the selection of material topics, information on students’ misconceptions in stoichiometry, and alignment between the activity design and targeted literacy indicators.
IMPLEMENTATION OF PROJECT-BASED LEARNING IN THE FOOD CHEMISTRY COURSE THROUGH THE SOCIALIZATION OF FOOD INNOVATION AND TECHNOLOGY BY MAKING TEMPEH HEALTH SMOOTHIES Aida Mustafida A; Celyta Nirmala Putri Talia; Nur Khofifah; Ersa Sania Azzahro'; Mirwa Adiprahara Anggarani
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p88-95

Abstract

Abstract This study aims to assess the capability of project-based learning (PjBL) methods in introducing innovations in the field of food and technology by making healthy tempeh smoothies, as a product of food chemistry courses, in order to deepen students' understanding of local foods. This study is based on the importance of understanding food chemistry that includes aspects of formulating, processing, and storing quality food products. The PjBL model was chosen because it can increase students’ learning motivation, creativity, and critical thinking skills in dealing with contextual problems. The study was conducted on 14 grade X students of Khadijah High School with a One Group Pretest-Posttest design. The research instrument was a multiple-choice test based on Bloom’s taxonomy and a Likert scale response questionnaire. The results showed a significant increase from a pretest score of 92,86 to a posttest score of 99,29. The N-Gain value of 0,89 and an effectiveness level of 88,89% indicated an increase in understanding in the high category and effective learning. Students were able to recognize tempeh as a local food with high nutritional value, understand the fermentation process, health benefits, and its potential for development into a modern beverage product. The questionnaire results showed a very positive response. The hands-on activity of making tempeh health smoothies increased student engagement, confidence, and motivation, including interest in simple entrepreneurial opportunities. Overall, PjBL learning was effective in strengthening local food literacy and fostering an appreciative and innovative attitude toward the use of tempeh as a health smoothies.
ANALYSIS OF MISCONCEPTIONS AMONG TENTH GRADE STUDENTS ON BASIC CHEMISTRY CONCEPTS USING A TWO-TIER MULTIPLE CHOICE INSTRUMENT Putri Gita Driya; Rana Yuswandi; Hayuni Retno Widarti; Laksmi Purnajanti
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p78-87

Abstract

This study aimed to identify the level of misconceptions held by tenth-grade students on the topic of the Fundamental Laws of Chemistry using a summative two-tier multiple-choice instrument, as well as to determine which conceptual areas were most frequently misunderstood. A descriptive quantitative research design was employed, involving Grade X students from a public senior high school in Malang as the research subjects. The instrument consisted of 15 two-tier multiple-choice items with reasoning. Instrument validity was examined using corrected item–total correlation analysis, showing that 14 out of 15 items had correlation coefficients greater than 0.30, while reliability analysis using Cronbach’s alpha yielded a coefficient of 0.840, indicating high internal consistency. Students’ responses were analysed by categorising them into three levels: understanding (U), misconception (M), and lack of conceptual understanding (LU). The results revealed that students experienced misconceptions across several concepts related to the Fundamental Laws of Chemistry, with the highest percentage occurring in Avogadro’s Law. This study contributes to secondary high school chemistry learning by providing a valid and reliable diagnostic instrument for identifying students’ misconceptions in fundamental chemistry concepts. Overall, the average percentages of students who demonstrated understanding, misconceptions, and lack of understanding were 71%, 24%, and 5%, respectively.
DEVELOPMENT OF DIGITAL COMICS WITH SPIRITUAL VALUES AS A LEARNING MEDIA FOR CHEMICAL BONDING TOPIC IN CLASS X HIGH SCHOOL Denada Septiani Yesa; Ayi Darmana; Andini Zahra
UNESA Journal of Chemical Education Vol. 15 No. 2 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n2.p96-104

Abstract

Chemical bonding is a fundamental topic in chemistry that students often find difficult to understand because the concepts are abstract and require strong visualization skills. Therefore, innovative learning media are needed to support students’ conceptual understanding and increase their engagement in the learning process. This study aims to develop digital comic learning media integrated with spiritual values for chemical bonding material that meets the criteria of validity, practicality, and student responses. This research employed the Research and Development (R&D) method using the 4D development model consisting of define, design, develop, and disseminate stages; however, this study was limited to the develop stage. Data were collected through needs analysis questionnaires, expert validation sheets, teacher practicality assessment questionnaires, and student response questionnaires. The validation procedure included chemistry content specialists, learning media experts, and spiritual value integration experts. A small study was carried out with tenth-grade pupils at a senior high school. The findings indicated that the designed digital comic media met the feasibility criteria. The validation results yielded an average Aiken's V value of 0.89, which is classified as very valid. The practicality assessment by the chemistry teacher provided an average score of 3.65 out of 4.00, suggesting a very practical area. Student responses also indicated positive results with an average percentage of 78.65%. This study contributes to chemistry education by providing an innovative digital comic learning media integrated with spiritual values that supports students’ understanding of abstract chemical bonding concepts.
THE EFFECT OF READING, QUESTIONING, AND ANSWERING (RQA) STRATEGY WITH PROBLEM BASED LEARNING MODEL TO IMPROVE STUDENTS’ HOTS SCIENCE LITERACY ABILITY ON THERMOCHEMISTRY Vincencia Friandini Sagala; Iis Siti Jahro
UNESA Journal of Chemical Education Vol. 15 No. 2 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n2.p105-110

Abstract

This research aims to determine the effect of integrating the Reading, Questioning, and Answering (RQA) strategy with the Problem-Based Learning (PBL) model in improving students' Higher-Order Thinking Skills (HOTS) and science literacy in thermochemistry. The background of this research is the low science literacy and critical thinking skills of students, as evidenced by Indonesia's low scores in international assessments such as PISA and TIMSS. This study uses a quantitative method with a pre- experimental one-group pretest-posttest design on 11th-grade science students. The research instrument is a 20-item multiple-choice test validated to measure three HOTS cognitive levels (Analyzing, Evaluating, Creating) and nine science literacy indicators. The results showed a significant improvement in learning outcomes (p < 0.001), with the average pretest score of 34.84 increasing to 68.87 in the posttest. The Normalized gain (N-Gain) value is 0.52, falling into the moderate category. The analysis also showed a significant increase in students' understanding; for example, the ability to distinguish scientifically investigable questions increased from 0% to 70.97%. Despite improvements in analytical and evaluative skills, students continue to struggle with mathematical calculations related to quantitative data. In general, the combination of RQA and PBL methods is effective in helping students understand the material through independent reading and questioning before class, thereby enhancing their readiness to critically address real-world problems in the classroom.
DEVELOPMENT OF STUDENT ACTIVITY SHEETS (LAPD) USING A MIND MAPPING STRATEGY TO TRAIN CREATIVE THINKING SKILLS ON CHEMICAL EQUILIBRIUM MATERIAL Adelia Fourista Khairiniza; Mitarlis Mitarlis
UNESA Journal of Chemical Education Vol. 15 No. 2 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n2.p146-156

Abstract

This study was conducted to determine the feasibility of Student Activity Sheets or LAPD designed with a mind mapping strategy to improve students’ creative thinking skills in the topic of chemical equilibrium. The research applied the 4D development model consisting of the define, design, develop, and disseminate stages, but its implementation was limited to the develop stage. The product was tested on 35 eleventh grade students at a public senior high school. The feasibility evaluation covered three aspects, namely validity, practicality, and effectiveness. The results showed that the LAPD fulfilled the validity criteria, as all components of content and construct validity achieved a mode score equal to or greater than 4. Practicality was reflected in the high percentage of relevant student activities at 97.10 percent and positive student responses at 88.54 percent, both categorized as very practical. Effectiveness was indicated by the improvement in students’ creative thinking skills based on the comparison of pretest and posttest results from mind mapping assessments and essay tests, which produced average N gain scores of 0.76 and 0.72, respectively, both classified in the high category. Therefore, the mind mapping based LAPD can be considered feasible and effective in enhancing students’ creative thinking skills in chemical equilibrium learning
IMPLEMENTATION OF PROJECT-BASED LEARNING WITH AN EDU-ECOPRENEURSHIP FOCUS: STUDENTS’ PRACTICAL SKILLS AND THE QUALITY OF BAR SOAP MADE FROM USED COOKING OIL WITH PAPAYA EXTRACT Aulia Nur Alfiannissa; Tri Wahyuni; Findiyani Ernawati Asih
UNESA Journal of Chemical Education Vol. 15 No. 2 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n2.p157-164

Abstract

Used cooking oil is one of the household wastes that can be utilized as a raw material for solid soap production while supporting environmental sustainability efforts. This study explored the implementation of Project-Based Learning (PjBL) integrated with edu-ecopreneurship through a project involving the production of solid soap from used cooking oil with the addition of papaya extract. The study involved 72 tenth-grade students from the Laboratory Testing Analysis (APL) program at a vocational high school in Gresik and employed a quantitative descriptive approach with a one-shot case study design. Data were collected through observations of students’ practical skills and quality testing of the soap products, including pH value, residual alkali content, density, and foam stability. The observations showed that students generally demonstrated good practical skills during project implementation, particularly in preparing materials, following procedures, and applying laboratory safety practices. The soap produced by both classes exhibited relatively similar characteristics, with satisfactory density and foam stability; however, the pH values and residual alkali content indicated that the saponification process had not yet reached optimal conditions. The project provided opportunities for students to apply chemistry concepts through direct experience while utilizing waste materials with potential economic value, making learning activities more relevant to real-life environmental issues.  

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