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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
 1   2   3   4   5 
Effectiveness of Electrolyte Solution on Changes in Apples Fruit Quality Putri, Diana Risa; 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.v2i2.8765

Abstract

The process of discoloration is an indication of damage in food. In this case, apples are one of the commodities that often experience this event. The cause of the discoloration is the polyphenol oxidase (PPO) enzyme. One possible prevention that can be used to inhibit the discoloration event is by administering ascorbic acid, iodine, and glucose compounds. The purpose of this study was to analyze the color changes in apples after being treated with ascorbic acid, iodine, and glucose. Color change testing was carried out using immersion in the three solutions. The results obtained from this study were that the treatment of the three solutions for 6 hours, 12 hours, 24 hours, 36 hours, and 48 hours was able to inhibit the discoloration of the cut apples. Increasing the concentration of ascorbic acid, iodine, and glucose solutions causes an increase in the ability to inhibit the browning reaction. In addition to the concentration factors of the three solutions, soaking time also affects the quantity of color change inhibition.
Perbandingan Kadar Protein Ikan Air Tawar Dan Ikan Air Laut Matondang, Silvia Elastari
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.v1i1.5723

Abstract

Ikan adalah hewan yang hidup di air tawar dan air laut. Tujuan artikel ini untuk mengetahui perbandingan kadar protein ikan yang berasal dari air tawar dan air laut. Metode penulisan artikel ini adalah metode kajian pustaka dari beberapa sumber baik dari buku, jurnal, internet dan laporan penelitian lainnya. Data yang dihasilkan adalah kadar protein beberapa ikan air tawar nila 16,05%, patin 14,53%, lele 13,182%, bandeng 20,496 %, ikan mas 16,00%.  Sedangkan kadar protein beberapa ikan air laut gembung 21,40% , teri 18,83%, pandang 27,00%, tongkol 26,30%, dan ikan salmon 19,90%. metode yang dapat digunakan untuk menganalisis kadar protein pada ikan adalah dengan menggunakan metode kjeldahl.
An Examination of Binanga High School Students' Literacy Capabilities Hasibuan, Desy Rahmayanti
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.v2i1.8337

Abstract

This study aims to analyze the literacy skills of high school students in Binanga. The research method used is descriptive research method with quantitative and qualitative approaches. The population in this study were high school students in class XI IPA in the odd semester of the 2021/2022 academic year in Barumun Tengah sub-district. A sample of 120 students was taken from 2 schools, namely class XI IPA SMAN 1 Barumun Tengah and class XI IPA MAN 2 Padang Lawas. The sampling technique used the cluster random sampling method. Data collection techniques with tests, questionnaires and the learning process. The results showed: 1) students' reading literacy skills were 52.02% very low category, 2) scientific literacy skills were 49.00% very low categories, 3) mathematical literacy skills were 50.26% very low categories.
The Effect of Integration Chemistry Learning Strategies to Growth Islamic Understanding in Quantum Chemistry Lubis, Ervi Luthfi Sheila
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.v2i1.8117

Abstract

This research have goals to know the effect of Integration-Based Chemistry Learning Strategies in Growth Islamic Understanding in Quantum Chemistry. Sample of this research are 9 Students of Grade 4 of Chemistry Study Program of the Universitas Islam Negeri Syekh Ali Hasan Ahmad Addary Padangsidimpuan Academic Year 2022/2023. This research use Quantitative research with 12 Essay Question Method as data collection. The result is students' Islamic understanding after studying Quantum Chemistry for one semester is decrease with percentage 85% and categorized as very good. Meaning that the chemistry learning strategy is based on integration in growth Islamic Understanding in quantum chemistry courses can improve students' understanding of Islam. With a chemistry learning strategy based on religious integration, it can create an understanding that chemistry, which has so far been considered abstract, can explain the greatness of Allah.
Effectiveness of Flipped Classroom Model Learning Using Microlearning on Buffer Solution Material Puteri, Hana Alya; Paristiowati, Maria; Zulhipri, Zulhipri; Putri Hasibuan, Nur Azizah; Karyadi, Prita Atria
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.v3i1.11112

Abstract

This study aims to determine the effectiveness of learning the flipped classroom model with microlearning on class XI buffer solution material. This research was conducted at SMA Negeri 99 Jakarta using a qualitative method. The sample used in this study was 35 students of class XI. This study refers to indicators of learning effectiveness, namely the management of learning implementation, communicative teaching-learning processes, student responses, learning activities, and learning outcomes. The instruments used in this study were observation, questionnaires, test questions, reflective journals, and interviews. The results of this study are that the flipped classroom learning model with microlearning is effective for use in buffer solution materials.
Evaluation of Learning Media Creation Based on Results of Computational Chemistry Calculations Visualised Nilmarito, Suriati; Lestari, Siska; Mantondang, Silvia Elatastari
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.v3i1.11148

Abstract

The objective of this study is to determine the outcomes of the requirements analysis and learning materials for electrolyte and non-electrolyte solution materials. Additionally, learning materials will be developed utilising computational chemical calculations and visualisation of the results to create learning media based on the National Education Standards Agency (BSNP) requirements. This kind of study uses the ADDIE development model and is referred to as development research. There are five steps in the current ADDIE model: analysis, design, development, implementation, and evaluation. The entire student body of one of the senior high schools in Padangsidempuan City, North Sumatera, Indonesia, served as the study's population. The participants in this research were senior high school students from Padangsidempuan City, North Sumatera, Indonesia. The use of a purposive sampling technique yields grade X as the research sample. An inquiry form derived from the National Education Standards Agency was used as the research tool. Utilising a significance level of 5%, the data analysis was conducted using the SPSS 22 for Windows software. The investigation's findings demonstrate the need for educational materials to help pupils struggling with learning. Based on 95% validation findings, the learning materials for both electrolyte and non-electrolyte solutions visualise the outcomes of computational chemical calculations.
The Effect of Rewards and Punishment on Student Learning Motivation on Stoichiometry Material Rosanna, Desi Lisa; Hajijah, Aida
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.v1i2.6721

Abstract

This research is motivated by students' learning motivation which is still in the low category. Giving reward and punishment to students aims to motivate students so that they learn better. This study aims to determine whether there is an effect of reward and punishment on students' learning motivation in stoichiometry material. The subjects of this study were 10th grade students at public high school at Pekanbaru City, Indonesia. This study using a purposive sampling technique with consideration of classes having low learning motivation and obtained first class as an experimental class and second class as a control. Data collection techniques used are questionnaires, observation, and documentation. Final data analysis in this study using the t test. From the results obtained, the value of t-count = -3.720 and t-table = 2.04 at a significant level of 5% and Sig. (2-tailed) of 0.001. From this study it was concluded that t-count t-table and Sig. (2–tailed) 0.05. So the null hypothesis (H0) is rejected and Ha is accepted. This means that there is a significant effect of reward and punishment on student motivation in stoichiometric material with an effect coefficient of 10.12%.
Analysis of Students' Science Process Skills in Project-Based Chemistry Learning Integrated with Education for Sustainable Development Paristiowati, Maria; Moersilah, Moersilah; Stephanie, Mian Maria
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.v2i2.8758

Abstract

This study aims to analyze the profile of science process skills through the implementations of  project-based learning integrated education for sustainable development on acid-base material. The aim of the project is to create a natural acid-base indicator that can determine the pH range of various solutions and the concentration of a solution using the titration method. This study uses a qualitative research method, the interpretive paradigm with the research subjects of XI IPA students in Jakarta totaling 29 people. Data collection techniques are carried out by class observation, reflective journals of student, interviews, and tests of science process skills. The results showed that science process skills arises during learning and were classified as very good with an average value of 86.99% according to observations and classified as good with an average value of 72.26% in the test of science process skills. Students apply the education for sustainable development (ESD) concept during the project by choosing safe solvents and conducting small-scale experiments to reduce the waste produced. The application of this project is expected to make students have the skills of a researcher by paying attention to sustainable development in every decision they make during learning.
Praktikalitas E-modul Hidrolisis Garam Berbasis Inkuiri Terbimbing Untuk Kelas IX SMA Rosanna, Desi Lisa; Meliza, Meliza; Frisilla, Sonya
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.v1i1.5450

Abstract

Penelitian ini bertujuan untuk menganalisis praktikalitas e-modul hidrolisis garam berbasis inkuiri terbimbing untuk siswa kelas XI SMA. Penelitian ini merupakan penelitian RD dengan model Plomp. Instrumen penelitian yang digunakan berupa angket uji praktikalitas siswa pada e-modul. Subjek penelitian ini terdiri dari dua orang guru kimia dan  26 orang siswa kelas XII SMAN 14 Padang. Data dianalisis dengan formula Moment Kappa (k). Hasil uji praktikalitas menunjukkan bahwa e-modul menarik, huruf jelas, bahasa mudah dimengerti sehingga siswa mudah memahami materi. Hasil analisis data rata-rata nilai Moment kappa pada tahap uji praktikalitas guru dan siswa sebesar 0,84 dan 0,82 dengan  kategori keduanya tinggi. Data ini dibuktikan dengan kemampuan siswa menjawab soal pada e-modul sebesar 87% dengan kategori tinggi. Berdasarkan analisis data disimpulkan bahwa e-modul e-modul hidrolisis garam berbasis inkuiri terbimbing untuk siswa kelas XI SMA telah praktis digunakan dalam proses pembelajaran Kimia SMA dengan kategori kepraktisan tinggi sehingga dapat dijadikan sebagai bahan ajar alternatif dalam pembelajaran kimia di SMA.
Analysis of Metal Content of Water Well of Aek Godang Village Community Using Electrolysis Method Matondang, Silvia Elastari
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.v2i1.8119

Abstract

Indonesia is a country that has a good source of clean water. But do not escape from water pollution caused by population density which is increasing from day to day. This has led to an increasing consumption of water as well as consumption of water in households and in industry. The presence of metals such as Fe (iron), Al (aluminum) and Cr (chromium) in the community's water can be a concern for the health of the residents of Aek Godang and its surroundings. Under these conditions, an experiment was carried out with the aim of analyzing the content of the population's water sources (dug well water, drilled well water, river water) using TDS and water electrolyze tools. The results of this study indicate that the water sources of the Aek Godang community have TDS levels of 24 mg/L and 23 mg/L so that it can be concluded that the water sources of the Aek Godang community are in the good category.

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