scholarly journals Green Chemistry Practicums at Chemical Equilibrium Shift to Enhance Students’ Learning Outcomes

2021 ◽  
Vol 14 (1) ◽  
pp. 691-708
Author(s):  
I Wayan Redhana ◽  
◽  
I Nyoman Suardana ◽  
2020 ◽  
Vol 4 (2) ◽  
pp. 58
Author(s):  
Rahmah Hidayani ◽  
Ardi Widhia Sabekti ◽  
Inelda Yulita

The aim of this study was to determine the practicality and effectiveness of educational game media using the Lectora Inspire application on chemical equilibrium. This study used research and development (R&D) methods, with the ADDIE research model, namely Analysis, Design, Development, Implementation, and Evaluation. In this study only the Implementation and Evaluation stage was carried out. The test subjects in this study were 2 teachers and 20 students of class XI IPA 2 Madrasah Aliyah Negeri Tanjungpinang. The results of practicality tests using teacher questionnaire responses was 88% with the category of very practical and in terms of student responses, it was obtained a percentage of 84% with very practical criteria. In the aspect of effectiveness obtained learning outcomes with pretest and posttest scores N-Gain 0.5 results in the medium category. Based on the results of evaluations conducted by educative game media using the Lectora Inspire application on chemical equilibrium, it is declared practical, and effective for use.


2020 ◽  
Vol 1 (3) ◽  
pp. 307-315
Author(s):  
Trikadar Sukmawati

The purpose of this study was to increase the activity and learning outcomes of chemistry on chemical equilibrium. The model used in this study is the Inquiry Based Learning (IBL) learning model. The sub-jects of this study were students of class XI-IA 5 SMA Negeri 4 Banda Aceh with a total of 33 students consisting of 12 male students and 21 female students. This research was conducted in the 2018/2019 Academic Year in a period of 3 months, from September 2018 to November 2018 in the odd semester. This type of research is Classroom Action Research which consists of two cycles and each cycle con-sists of two meetings. Each cycle consists of planning, implementing, observing and reflecting. The data collection technique is to collect test scores that are carried out at the end of each lesson in each cycle using a question instrument (written test). Observation data was carried out by looking at the activeness of students in the learning process. Data were analyzed by means of percentage statistics. The results showed that there was an increase in the completeness of student learning outcomes from 39.33% in the pre-study increased to 66.67% in the first cycle and increased to 81.82% in the second cycle. Student learning activities have increased from sufficient to good categories and good categories have increased to be very good. The application of the Inquiry Based Learning (IBL) learning model can increase the activity and learning outcomes of chemistry in the chemical equilibrium material of class XI-IA 5 SMA Negeri 4 Banda Aceh for the 2018/2019 academic year.


2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Matthew J. Mio

Abstract Many logistic and instructional changes followed the incorporation of the 12 principles of green chemistry into organic chemistry laboratory courses at the University of Detroit Mercy. Over the last decade, institutional limitations have been turned into green chemical strengths in many areas, including integration of atom economy metrics into learning outcomes, replacing overly toxic equipment and reagents, and modifying matters of reaction scale and type.


2020 ◽  
Vol 4 (1) ◽  
pp. 33
Author(s):  
Melysa Pramitha Rosa ◽  
Utiya Azizah

 The purpose of its research for  train students' critical thinking with problem solving learning models of equilibrium theory. The research was conducted in XI MIPA 1 class at SMA Negeri 14 Surabaya using the One Group Pretest Posttest Design method. The results obtained in this study were the teacher's implementation of the syntax in accordance with the problem solving learning model obtained by a percentage of ≥61% at each meeting. The student's relevant activity reaches a percentage of 82.78% for meeting 1; 84.44% for meeting 2, and 85% for meeting 3. At the time of the critical assessment of the 4 indicators drilled namely, interpretation, analysis, inference, and increasing understanding of 93.49% respectively; 82.87%; 88.90%; 85.42%. On the learning outcomes of students in the realm of knowledge by 92%. This shows the application of effective problem solving learning models in learning chemical equilibrium in training critical thinking skills. 


Author(s):  
Nabila Aurelia Awalin ◽  
Ismono Ismono

This study aims to determine the improvement of learning outcomes and students’ science process skills by implementation PBL (Problem Based Learning) model with STEM (Science, Technology, Engineering, Mathematics) based on chemical equilibrium topic. The method in this research is quantitative descriptive with One-Group Pretest-Postest design. The subjects of this study were students of Mathematics and Natural Sciences XI graders in State Senior High School 1 Pulung,  Ponorogo Regency. Data method is; observation, questionnaires, and tests. Technical data analysis used is; analysis of study results data, analysis of observations of learning implementation, analysis of student activities, analysis of learning outcomes completeness, and analysis of student responses. The results in this study were: (1) the mean percentage of the implementation of PBL model based on STEM  in the chemical equilibrium topic was 89.26%; (2) the category of improvement for all indicators of Science Process Skills observing and conclusion that respectively 0.82 and 0.89 are included in the high category, for the skills to formulate problems, formulate hypotheses, determine variables, and analyze data respectively of 0.64 ; 0.42; 0.67; 0.68 and can be categorized as moderate; (3) the learning outcomes of students in the realm of knowledge have increased classically with n-gain of 0.62 in the moderate category; and the last (4) learning by implementation the STEM-based PBL  model on chemical equilibrium material received a positive response from students based on the results of the questionnaire, the percentage was 83%.


2020 ◽  
Vol 12 (10) ◽  
pp. 11769-11777 ◽  
Author(s):  
Hua Wang ◽  
Xiangtong Zhang ◽  
Ning Sui ◽  
Yue Hu ◽  
Vicki L. Colvin ◽  
...  

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