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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 476 Documents
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VALIDITAS BOOKLET EKSTRAKSI UNTUK MENINGKATKAN MINAT DAN HASIL BELAJAR MATERI INDUSTRI EDIBLE OILS KELAS XII SMK KOMPETENSI KEAHLIAN KIMIA INDUSTRI Dhea Mutiara Fernanda Wibowo; Dian Novita
UNESA Journal of Chemical Education Vol. 14 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n2.p148-159

Abstract

Penelitian ini bertujuan untuk menganalisis validitas booklet ekstraksi sebagai media pembelajaran pada materi industri edible oils untuk peserta didik kelas XII SMK Kompetensi Keahlian Kimia Industri. Metode yang digunakan adalah penelitian dan pengembangan (R&D) dengan model 4D yang mencakup tahapan Define, Design, dan Develop. Fokus utama penelitian ini adalah menilai validitas booklet yang dikembangkan melalui uji ahli. Validasi isi dilakukan oleh ahli materi kimia industri dan ahli pendidikan, dengan hasil skor modus 3 (kategori baik), sementara validasi konstruk memperoleh skor modus 4 (kategori sangat baik). Hasil ini menunjukkan bahwa booklet ekstraksi memiliki validitas yang memadai sebagai media pembelajaran. Dengan demikian, booklet ini dinilai valid dan layak digunakan sebagai media pembelajaran untuk mendukung proses belajar pada materi industri edible oils. Penelitian lanjutan disarankan untuk menguji kepraktisan dan keefektifan booklet secara lebih luas.
VALIDITAS E-LKPD PROBLEM BASED LEARNING BERBASIS MULTIPEL REPRESENTASI KIMIA UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS PESERTA DIDIK PADA SUBMATERI FAKTOR LAJU REAKSI Salsa Sabrina Fajar Maulidiah; Dian Novita
UNESA Journal of Chemical Education Vol. 14 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n2.p160-171

Abstract

Penelitian ini bertujuan untuk mengetahui validitas Lembar Kerja Peserta Didik Elektronik (E-LKPD) problem based learning berbasis multipel representasi kimia  untuk meningkatkan keterampilan berpikir kritis peserta didik pada submateri faktor laju reaksi. Model pengembangan dalam penelitian ini adalah ADDIE dengan empat tahap yaitu Analyze (Analisis), Design (Desain), Development (Pengembangan), dan Evaluate (Evaluasi). Hasil validasi dianalisis berdasarkan modus pada setiap aspek. Berdasarkan hasil validasi diperoleh bahwa E-LKPD PBL berbasis multipel representasi kimia yang dikembangkan memiliki kategori baik dengan skor 3 pada aspek validitas isi dan kategori baik dengan skor 3 pada aspek validitas konstruk. Selanjutnya, E-LKPD yang telah valid dapat digunakan dalam proses pembelajaran di kelas guna menilai tingkat kepraktisan dan keefektifan dari E-LKPD yang telah dikembangkan.
DEVELOPMENT OF STUDENT WORKSHEETWITH GUIDED INQUIRY-BASED TO TRAIN STUDENT’SCRITICAL THINKING SKILL ON ELECTROLYTE AND NONELECTROLYTE SOLUTION MATTER GRADE X MAYANTI, NUR
UNESA Journal of Chemical Education Vol. 7 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v7n1.p%p

Abstract

This research aims to develop student worksheet with guided inquiry-based to train student critical thinking skill on electrolyte and non electrolyte solution matters based on validity, practicality and effectiveness. This type of research isresearch development depend on the 4D model, but only to develop stage. The instruments usedisreview sheets, validationsheet, pretest and posttest critical thinking skills of sheet and student questionnaire responses. The data sources from two chemistry lectures and chemistry teacher. The limited trial was conducted on 20 students of X gradeXI MIPA 6 SMAN 1 Manyar then the data can be analyzed using descriptive and quantitative. The results of this reasearch indicate the content validity of 83.80% in the category is very feasible and the construct validity of the percentage of 76.6% in the feasible category. The result of questionnaire from students shows that 87,5% of students give positive response to student worksheet that developed with very feasible criteria. The result of the students' thinking skill test has a range of 73.3% -86.7%, so that the developed student worksheetis categorized as feasible.
THE DEVELOPMENT OF LAB WORK KIT“REACTION RATE CHEMISTRY”TO TRAIN SCIENCE PROCESS SKILL ON REACTION RATE MATTER OF XI GRADE SENIOR HIGH SCHOOL DWI RACHMAWATI, INTAN
UNESA Journal of Chemical Education Vol. 7 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v7n1.p%p

Abstract

This research aims to determine the feasibility of lab work KIT Reaction Rate Chemistry that used as an intructional media to train the science process skills on the reaction rate matter of XI grade, the validity seen from the validation requirements, the practicality through student responses to lab work KIT reaction rate chemistry, the effectiveness through student learning outcomes and student activity observation results. This was a research development by Borg & Gall, the research model which is limited to preliminary field testing stage. Praliminary field testing conducted on 12 students of XI grade Science 1 SMAN 2 Mojokerto. The instrument that used in this research is the research paper sheet, validation sheet, student response questionnaire, student activity observation sheet, pretest and posttest sheet. The results showed that the developed of lab work KIT reaction rate chemistry was stated feasible on the validity requirement by obtaining an average percentage of 85.22%. Qualified practicality shown from student’s responses on student interest to lab work KIT aspect obtained an average percentage of 97.92%, on the aspect of easy to understanding the matter obtained an average percentage of 93.75%, and on the aspect of easy to use of lab work KIT as instructional media obtained an average percentage of 95.85%. The feasibility of effectiveness shown from student learning outcomes in which 11 students passed the grade individually so that classical completeness reaches 91.67% with gain included in the "Moderate" to "High" category and student activity observation results get an overall average percentage of 89.81%. Keywords: Lab work KIT, Intructional media, Science Procces Skills, Reaction Rate.
PENGEMBANGAN LEMBAR KEGIATAN PESERTA DIDIK (LKPD) PADA MATERI KOLOID UNTUK MELATIHKAN KETERAMPILAN LITERASI SAINS HIDAYATIN, SRINI; MITARLIS
UNESA Journal of Chemical Education Vol. 7 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v7n1.p%p

Abstract

Tujuan penelitian ini adalah mendiskripsikan kelayakan LKPD materi koloid untuk melatihkan keterampilan literasi sains. Metode penelitian ini menggunakan metode R&D (Research and Development) yang terdiri dari 3 tahap utama yaitu studi pendahuluan, merencanakan penelitian dan pengembangan. Tahap studi pendahuluan mulai dari identifikasi masalah dilanjutkan pengumpulan data. Tahap perencanaan dilakukan pencarian data sebagai bahan untuk desain produk Lembar Kegiatan Peserta Didik. Tahap pengembangan terdiri atas desain produk, telaah, revisi, validasi dan uji coba terbatas. Kelayakan LKPD ditinjau dari aspek validitas, kepraktisan dan keefektifan. Kelayakan LKPD ditinjau dari aspek validitas mendapatkan hasil penilaian validator sebesar 87,61% dengan interpretasi sangat valid. Kelayakan dari aspek kepraktisan berdasarkan respon peserta didik yang memperoleh respon positif sebesar 99,12% dengan interpretasi sangat praktis dan aktivitas peserta didik selama pembelajaran menggunakan LKPD materi koloid untuk melatihkan keterampilan literasi sains diperoleh rata-rata total presentase sebesar 95% dengan interpretasi sangat baik. Kelayakan dari aspek keefektifan ditinjau dari hasil ters keterampilan literasi sains peserta didik mendapatkan nilai gain 0,93 dengan interpretasi tinggi dan ketuntasan peserta didik sebesar 100%.
TRAIN STUDENTS’ CRITICAL THINKING SKILL THROUGH THE IMPLEMENTATION OF COOPERATIVE LEARNING MODEL TYPE GROUP INVESTIGATION (GI) ON MATTER OF REACTION RATE INSMA NEGERI 1 MANYAR KHASANAH, NIKMATUL; AZIZAH, UTIYA
UNESA Journal of Chemical Education Vol. 7 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v7n1.p%p

Abstract

This study aims to determine the implementation of learning and students' critical thinking skills after the implementation of cooperative learning model type Group Investigation on matter of reaction rate. This research type is Pre Experiment (pre experimental design) and research design used is One-Group Pretest-Postest Design. Target of this research is student of class XI MIPA 6 SMA Negeri 1 Manyar. The instrumentsused are an observation sheet of cooperative learningmodeltype Group Investigation and sheet of pretest and postest of critical thinking skill. The results showed that (1) The implementation of cooperative learning model type Group Investigationis in good and very good category with percentage in every phase is:in phase 1 was 87.5%; phase 2 was 95.84%; phase 3 which contains stage 1 and stage 2 of the Group Investigation was 87.5%; Phase 4 which contains stage 3, stage4, and stage5 of the Group Investigation was 95.84%; phase 5 which contains stage 6 of Group Investigation was100%; (2) Students’ critical thinking skill in terms of N-gain shows that 85% of students get high N-gain category and 15% of students get N-gain in moderate category.
MEASURING AND PROFILING STUDENTS' CRITICAL THINKING SKILLS ON CHEMICAL EQUILIBRIUM USING THE RASCH MODEL Mardhiya, Julia; Sari, Dwy Puspita
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p191-201

Abstract

This research focused on measuring students' critical thinking skills in the topic of chemical equilibrium. The instrument used is an essay test consisting of 8 questions. Data collection took place from March to April 2024. The sample size was 80 students. Data were analyzed using the Rasch Model with Winsteps 5.6.0. The instrument underwent testing for unidimensional, validity (item fit), reliability, item difficulty level (item measure), and individual ability level (person measure). The analysis showed that the instrument had a person reliability of 0.64 and item reliability of 0.96. The interaction between person and items is displayed on the Wright Map and Scalogram. The analysis of person and items provided significant information about the participants' abilities and the difficulty levels of the tested questions. A total of 4 respondents were identified as misfit according to the model. The identification of person misfit also plays a role in understanding patterns of responses that do not align with the model. The findings of this study can serve as a reflection for both students and lecturers regarding students' critical thinking skills.
THE ANALYSIS OF STUDENT MISCONCEPTIONS ON ESSAY QUESTIONS BASED CHEMICAL EQUILIBRIUM LESSON WITH IN DEPTH INTERVIEW Silviana, Messy; Ritonga, Soleman
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p172-177

Abstract

Lack of students' understanding of the concept of chemical equilibrium causes many misconceptions to occur. Chemical equilibrium is one of the topics in chemistry that consists of various concepts that are interconnected, sequential, and organized, so it is often considered complex and causes misconceptions. This study aims to analyze students' misconceptions on the topic of chemical equilibrium and determine its percentage. This study used a mixed method with an explanatory sequential design. The subjects of the study involved 30 students of class XI Tahfiz SMA IT Fadhilah Pekanbaru. The data collection instrument was in the form of essay questions with a reliability coefficient of 0.814 and empirical validity showed 10 valid questions and 3 invalid questions. Data analysis techniques were carried out after collecting test results, including data processing and interpretation to identify misconceptions. The results showed that 17% of students from the total sample had misconceptions. The lowest misconception occurred in indicator (10), namely determining the direction of equilibrium shifts influenced by temperature, with a percentage of 3.33%. Meanwhile, the highest misconception was found in indicator (8), namely determining the direction of equilibrium shift influenced by concentration, with a percentage of 46.67%. Based on these results, it is concluded that the misconceptions that occurred in the sample were in the low category. This shows that the learning method used is quite effective in improving conceptual understanding.
IMPLEMENTATION OF DISCOVERY LEARNING USING INTERACTIVE FLIPBOOK MEDIA IN CHEMISTRY TO IMPROVE MOTIVATION AND LEARNING OUTCOMES IN SENIOR HIGH SCHOOL Ummah, Dinda Khoirul; Prasasti, Tirangga Lutfi; Amalia, Nurul; Subaidi, Faizatunnisa; Auliya, Rima; Novita, Dian; Hadibyono, Luluk; Rizqullah, Aflah Farchan
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p178-190

Abstract

This study is a Classroom Action Research (CAR) aimed to measuring the improvement in students’ motivation and learning outcomes through the implementation of the Discovery Learning model using interactive flipbook media on acid-base material. The sample used consisted of 30 students from class XI-3 at SMA Negeri 14 Surabaya. The research consisted of four stages: planning, implementation, observation, and reflection. The instruments used were pre-test and post-test to assess the improvement in cognitive learning outcomes, and a learning motivation questionnaire to measure students’ affective aspects. The results showed that the average N-Gain score increased from 0.61 (moderate category) in the first cycle to 0.76 (high category) in the second cycle. A significant improvement was also observed in students’ learning motivation, increasing from an average percentage of 52.26% in the first cycle to 84.03% in the second cycle after the learning process was carried out. Based on these data, it can be concluded that the application of the discovery learning model using interactive flipbook media is effective in enhancing students’ motivation and learning outcomes in chemistry learning, particularly in acid-base material. The results also indicate that this model and media can serve as an innovative and engaging alternative strategy for future chemistry education.
THE USE OF GOOGLE SITES AS A LEARNING MEDIUM TO IMPROVE STUDENTS’ COGNITIVE LEARNING OUTCOMES AND SELF-EFFICACY IN THE TOPIC OF BASIC LAWS OF CHEMISTRY Azizah, Putri Augista Nur; Sulistina, Oktavia; Setyowati, Istri
UNESA Journal of Chemical Education Vol. 14 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n3.p238-245

Abstract

This study aims to determine the improvement in students’ cognitive learning outcomes and self-efficacy through the use of Google Sites as a learning medium. The study was conducted at SMA Laboratorium UM in class X.4 in the 2024/2025 academic year with 36 students. The study was conducted using a Classroom Action Research (CAR) method. The instruments used were observation sheets, test questions, and self-efficacy questionnaires. The study results showed that the implementation of learning in cycle I was 88.28% and in cycle II was 90.50%. In addition, students’ cognitive learning outcomes increased, as evidenced by the students’ classical completeness rate, which rose from 44.44% in cycle I to 88.89% in cycle II. Students’ self-efficacy also increased from 24.50 to 30.14 in cycle II and was categorised as high. Thus, the use of Google Sites as a learning medium has been shown to improve students’ cognitive learning outcomes and self-efficacy in the context of the Basic Laws of Chemistry material.

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