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LAVOISIER: Chemistry Education Journal
Published by Universitas Islam Negeri Syekh Ali Hasan Ahmad Addary Padangsidimpuan
ISSN : 30252865     EISSN : 28306279     DOI : https://doi.org/10.24952/lavoisier.vxix
Core Subject : Science, Education,
Chemistry Education
LAVOISIER: Chemistry Education Journal, is a journal of chemistry education published by the Department of Chemistry Education, Faculty of Education and Teacher Training, UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan. This journal provides readers with present developments in chemistry education through the publication of articles and research reports. All articles will be reviewed (double-blind) by experts before being accepted for publication. Each author is responsible for the content of published articles. LAVOISIER: Chemistry Education Journal focused on the study result in the field of chemistry education. This journal encompasses original research articles, including: Teaching & Learning in Chemistry Education Material Learning in Chemistry Education Learning Media/Multimedia in Chemistry Education Evaluation & Assessment in Chemistry Education Higher Order Thinking Skills in Chemistry Education Science, Technology, Engineering, and Mathematics (STEM) Education Chemical Content Learning Strategy in chemistry education School Laboratory Experiment in chemistry education Integrating Islamic Values with Chemistry
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 49 Documents
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Effectiveness of Using Interactive Powerpoint Media on Chemical Bonding Material to Improve Student Learning Outcomes Rosanna, Desi Lisa
LAVOISIER: Chemistry Education Journal Vol 3, No 1 (2024): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v3i1.10825

Abstract

Along with the development of Science and Technology (IPTEK), current educators and students need to improve the quality of education to be able to compete. Therefore, learning media is needed that can increase understanding by using interactive power points . The research aims to test the effectiveness of using powerpoint learning media on chemical bond material to improve the learning outcomes of class X students at SMA 14 Padang City. This research method uses experimental research with a Nonequivalent Control-Group Design research design . The population in this study were all students in class X Science at SMA 14 Padang City, consisting of 5 classes in the even semester of the 2020/2021 academic year. The sampling technique was carried out using the purposive sampling method . The research instrument is a multiple choice test that has been tested for validity, reliability, question discrimination and a good difficulty index. Data were analyzed using the n-gain test and hypothesis testing with the independent sample t-test . The results of data analysis show that the experimental class has a higher n-gain compared to the control class in the medium category. Apart from that, the results of the hypothesis test show a significance value (sig) of less than 0.05, so H 1 is accepted and H 0 is rejected. From the results of this data analysis, it can be concluded that the use of interactive Powerpoint learning media on chemical bond material is effective in improving high school/MA student learning outcomes.
Analysis of Students Critical Thinking Skills in Conventional Learning Wardani, Miessya; Feronika, Tonih; Ardianti, Dewi Linda
LAVOISIER: Chemistry Education Journal Vol 3, No 1 (2024): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v3i1.11598

Abstract

Student-centered learning significantly influences students' learning and thinking abilities. However, in practice, many teachers still use conventional teaching methods, such as lectures, to deliver material. Conventional teaching is often chosen because it can quickly convey information and is easy to implement in the learning process. Learning activities are a process for students to enhance their abilities and skills. One of the essential skills students need to develop is critical thinking. This skill can foster cognitive aspects and improve students' problem-solving abilities. Critical thinking skills can be trained during learning activities. This study aims to determine students' critical thinking skills in conventional learning on hydrocarbon combustion. The research employs a descriptive quantitative method with a test instrument in the form of essay questions. Ennis's critical thinking aspects measure students' critical thinking skills. Ennis's critical thinking aspects consist of 5 aspects encompassing 12 indicators. The results of the study show that students' critical thinking skills in conventional learning are categorized as low with 52.80%.
Analysis of General Chemistry Teaching and Learning Resources: Department of Agro-technology University of Medan Area Anggraini, Fitri; Matondang, Silvia Elastari
LAVOISIER: Chemistry Education Journal Vol 1, No 2 (2022): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v1i2.6732

Abstract

This study aims to describe how the teaching materials related to chemical in the curriculum of the Department of Agro-technology Medan Area University. For the purpose of observation, interviews and giving questionnaires to various stakeholders in the Department of Agro-technology University Medan Area. Results obtained in the form of retribution subjects related to chemistry as much as 7 subjects with a weight of 20 credits or as much as 13.8 % of the total of 145 credits. Those subjects are General Chemistry, Biochemistry Agriculture, Basic Soil Science, Soil Fertility and Fertilizer, Seed Technology, Post-Harvest Technology and Advanced Plantation Crops.
The Influence of Computation Implementation in Chemistry Basic Courses on Chemistry-Biology Pre-Service Teachers of UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan Nasution, Annisa; Hasibuan, Fadli Mahmul; Simanjuntak, Rizki Agus Salim
LAVOISIER: Chemistry Education Journal Vol 2, No 2 (2023): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v2i2.8604

Abstract

This study aims to determine the effect of the implementation of computation through the experimental test method on the skills of students majoring in Tadris Biology UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan 3rd semester. This type of research is experimental research with a pretest-posttest control group design. Sampling was carried out using cluster random sampling technique. The population in this study were students of Tadris Biology at Uin Shahada Padangsidimpuan, with a sample of Tadris Biology students at UIN Syahada (experimental class) and Tadris Biology students at Uin Shahada Padangsidimpuan Semester 3 (control class). The instrument used was a process skill test in the form of reasoned multiple choice which was first tested for validity, reliability. The results of the pretest homogeneity test showed the initial ability of the experimental class and homogeneous control, so that the effect of the treatment was the result of the posttest. So, it can be concluded that there is an effect of computer-based learning through experimental methods on the influence of the implementation of computing in basic courses on students of Tadris Biology at Uin Shahada Padangsidimpuan.
Pembelajaran Kooperatif Stad Dengan Media Mind Mapping Dan Kartu Soal Terhadap Hasil Belajar Siswa Pada Materi Ikatan Kimia Hasibuan, Desy Rahmayanti; Nasution, Annisa
LAVOISIER: Chemistry Education Journal Vol 1, No 1 (2022): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v1i1.5452

Abstract

Penelitian ini bertujuan untuk mengetahui ada perbedaan yang signifikan hasil belajar siswa  melalui pembelajaran kooperatif STAD melalui media mind mapping dibandingkan dengan hasil belajar siswa melalui pembelajaran kooperatif STAD melalui media kartu soal. Penelitian ini menggunakan metode kuasi-eksperimen. Kelompok eksperimen I dengan model kooperatif STAD dengan mind mapping, kelas eksperimen II dengan model kooperatif STAD dengan media kartu soal. Hasil pengolahan data menunjukkan siswa pada kelas eksperimen I memiliki nilai rata-rata pretest 30,00 ± 7,73 dan posttes 78,00 ± 5,75 dengan rata-rata gain sebesar 0,70. Sementara siswa di kelas eksperimen II memiliki nilai rata-rata pretest 23,00 ± 8,19 dan posttest 66,20 ± 6,42 dengan rata-rata gain 0,57. Hasil uji statistik menggunakan uji t dua pihak menggunakan data  gain diperoleh thitung sebesar 4,885 sedangkan nilai t tabel 2,021 pada taraf signifikan α = 0,05, sehingga t hitung t tabel. Hal ini menunjukkan bahwa ada perbedaan peningkatan hasil belajar siswa yang diberikan dalam kelas eksperimen I dan kelas eksperimen II yaitu sebesar 12,63%.
Development of Science Process Skill (KPS) Assessment in POE (Predict, Observe and Explain) Learning in Acid-Base Titration Gunawan, Ricky; Feronika, Tonih; Saridewi, Nanda
LAVOISIER: Chemistry Education Journal Vol 2, No 1 (2023): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v2i1.7962

Abstract

This research was about the development of an instrument assessment of skills the process of science in learning POE (predict, observe and explain) in titration acid bases, in significance this assessment instruments contains aspect of science process skills i.e. aspect of observation, classification, interpretation, prediction, making the question, hypotheses, design experiments, using tools and materials, applying concepts and communicate that categorized on stage learning POE. This assessment instruments was developed to the matter titration acid bases based on the analysis of KD in 2013 curriculum. Research methodology used is DDR (design and development research). The assessment is an instrument developed through 3 stages, namely: (1) study design (concept of a development), (2) stages of development, and (3) stages of evaluation. The purpose of this research is to produce an instrument for skill process of science in learning POE on titration acid base. This research include the development and products finally tested to 22 respondents by 22 students class XI MA Dharma Karya UT, South Tangerang. Based on the data so can be concluded this instrument has characteristics: assessment is organized by using stage POE, now housed assessment ten aspects skill the process of science, now housed assessment discourses whose characteristics are in accordance with matter or the concept of titration acid bases and environment students as well as this assessment use rubrics with scales 0-4 for diplomatic learning can be assessed in detail. Based on the percentage the average from the validation the people of, pilot products and chief responsi teachers, products this assessment get the percentage an average of 84,71 % and into category is very good.
"OK KETUK": Improving Students' Understanding of Periodic System of Elements Material Through Learning Media Supatmi, Sri
LAVOISIER: Chemistry Education Journal Vol 3, No 1 (2024): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v3i1.11131

Abstract

This study aims to improve students' understanding of the material on the periodic system of elements through OK KETUK learning media. OK KETUK is a learning medium for the periodic system of elements that combines element cards and the periodic table. This medium is played by shuffling the cards, determining the electron configuration, period, and group of elements on the front of the card, doing problems on the back of the card, and placing the elements on the periodic table. This research is classroom action research conducted in two cycles. Each cycle consists of planning, implementing, observing, and reflecting. The research subjects were students of class X IPA 1 SMA Santo Yakobus Jakarta for the academic year 2019/2020, with 24 students, consisting of 12 male and 12 female students. The instruments used in this study consisted of learning outcomes tests, teacher and student activity observation sheets, interviews, and field notes. The results showed that OK KETUK learning media could improve students' understanding of the material on the periodic system of elements. The average score increased from 64.79 with 37.50% learning completeness in the first cycle to 83.44 with 91.67% learning completeness in the second cycle at KKM 70.00. Based on the results of the study, the use of OK KETUK learning media can improve students' understanding of the material for the periodic system of elements.
Validity and Reliability of Test and Non-Test Research Instruments on Chemical Bond Materials Riswana, Syah Nurul; Nasution, Haqqi Annazili
LAVOISIER: Chemistry Education Journal Vol 3, No 1 (2024): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v3i1.11392

Abstract

This research aims to determine the feasibility of research instruments through the validity and reliability of test and non-test instruments on chemical bonding materials. The instruments tested were in the form of multiple-choice questions, and the non-test instruments were in the form of questionnaires. Validity and reliability testing aims to determine the suitability of the test instrument. The test instruments aim to measure learning outcomes, and the non-test instruments aim to measure students' motivation for chemical bonding material. Validity and reliability testing of the test instrument was carried out by testing content validity with expert validators and small-scale field trials with students in class XI Science 1 at SMA Negeri 14 Medan. Non-test instrument testing was carried out through content validation tests on three expert validators. The research results showed that of the 40 questions, there were 28 valid questions, and the reliability test obtained r-11 = 0.85 and was included in the high reliability category. At the difficulty level of the questions, the number of questions in the difficult category was 5; 24 in the medium category; and 11 in the easy category. Then, regarding the differentiating power of questions in the good category, the number obtained was 25, and in the bad category, the number obtained was 15. The percentage of eligibility for non-test instruments obtained was 90%, which is a feasible criterion.
The Effectiveness of STEAM (Science, Technology, Engineering, Art, and Math) to Improve Students' Achievement in Electrochemistry Sheila Wanni Lubis, Ervi Luthfi; Rahmania, Sri
LAVOISIER: Chemistry Education Journal Vol 1, No 2 (2022): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v1i2.6733

Abstract

This research have goals to determine the increase in student learning outcomes using STEAM learning is better than improving student learning outcomes using direct instructions in Electrochemistry Before treatment, 25 pretest questions were given . Then given a different treatment, the experimental class studied using STEAM learning and the control class studied with direct instructions. After the treatment given a post-test. In the pretest, the experimental class average was 40.11 and in the control class was 39.11. In the post-test, the experimental class was 83 and the control class was 75.40. The effectiveness of STEAM learning is 25% compared to Direct Instructions. The conclusion of this research is learning outcomes using STEAM learning are better than Direct Instructions. The difference in student learning outcomes using STEAM with student learning outcomes using the lecture method is 19%.
Utilization of Maizena Flour as a Basic Material for Making Bioplastics Ruhendi, Raditya Adinaka; Fauzi, Siska
LAVOISIER: Chemistry Education Journal Vol 2, No 2 (2023): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v2i2.8760

Abstract

Plastic is a widely used packaging material, but has a negative impact on the environment because it is difficult to decompose in nature. Many experts have developed technologies for the production of biodegradable plastics orbioplastics made from natural and environmentally friendly materials. Starch-based biodegradable plastics are easier to produce and access to raw materials is easier to obtain. So in this research an experiment was carried out using cornstarch as a base ingredient for making bioplastics. Examined with quantitative methods through experiments obtained results of comparisons of differences in water concentrations and differences in glycerin concentrations.Then a mechanical test was carried out to see the ability to decompose bioplastics with water. After conducting research on the use of bioplastics from cornstarch as asubstitute for plastic, it can be concluded that the best bioplastic produced is at a Glycerin Concentration of 5 mL and a Water Concentration of 100 ml.

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