Chemistry Lecture Research Articles

Validity of Problem Based Learning Oriented E-LAPD for Practicing Creative Thinking Skills Reaction Rate Material

The era of education that occurs in the 21st century places demands on students to ensure the ability to think creatively to solve various problems. Apart from that, the development of the industrial revolution 4.0 plays a role in the current generation in terms of technology and the internet. The aim of this research is to determine the validity of E-LAPD oriented Problem Based Learning (PBL) to train creative thinking skills on reaction rate material. This research uses an R&D model, one of which is ADDIE. The ADDIE development research model consists of 5 stages, namely Analyze, Design, Develop, Implement, and Evaluate, but without carrying out the Implementation stage. This validation was carried out by 3 validators, namely 2 chemistry lecturers and 1 chemistry teacher at SMA Labschool Unesa 1 Surabaya. The results of the analysis of aspect of content validity get a mode value of 4 with a valid category, while for aspect construct validity it gets a mode value of 5 with a very valid category, the results of the content and construct validity values get a mode score of ≥ 3, so E- LPAD can be declared valid. So that E-LAPD media can be used in learning.

Using text-scrolling to increase student engagement in the STEM classroom: a collaboration

The benefits of using active-learning approaches to increase student engagement and participation in the HE classroom are well known (Allsop et al., 2020). In STEM disciplines specifically, active-learning approaches can contribute to a reduction in achievement gaps for underrepresented students by promoting self-efficacy and a sense of belonging (Kovarik, Robinson and Wenzel, 2022). Despite these benefits, academics in those disciplines may be reluctant to adopt active learning for reasons such as lack of familiarity or more time spent in traditional, lecture-style delivery (Arnaud, 2021). This presentation reported on the outcome of a small-scale pedagogical innovation in one tutorial of a first-year undergraduate theory module in Chemistry. The aim was to increase students’ classroom engagement in the tutorial by using a text-mapping activity with scrolled research papers (Abegglen et al., 2019), with the additional benefit of introducing tutors to this active-learning technique. The transcript of a professional conversation between a Chemistry lecturer and Learning Developer discussing the approach along with slides outlining a typical session were circulated to tutors a week prior to the timetabled tutorial. Qualitative feedback from tutors was presented to indicate the success of the text-mapping activity as a way of increasing student engagement in the tutorial. Insights were also gained about tutors’ own perceptions of pedagogical value and confidence in adopting such approaches in future. Implications were presented for how the first-year tutorials might be redesigned to include more active learning, as well as how Learning Developers can work in collaboration with academic colleagues in STEM programmes.

A virtual 3D Chemistry Escape Room for Exam Preparations

Chemistry can be incredibly captivating. However, learning the theory can often be challenging and less appealing for students. Providing them with hands-on methods in their learning process is beneficial and also helps to lower the barrier for understanding theory. In a gamified approach, the "ChemScape" virtual 3D chemistry escape room, designed as a realistic laboratory with various equipment and hidden chemical tasks, can help solidify chemical knowledge and prepare students for chemistry exams. In 2023, as part of an e-learning project, the foundation of such a chemistry escape room was established, and several chemical questions were incorporated as escape room tasks. The objective is to discover hidden questions within the laboratory, utilize different instruments (such as scales), conduct virtual chemistry experiments, and solve various chemistry questions using theoretical knowledge (such as nomenclature and understanding of pH) in a game-based setting (utilizing multiple-choice, drag and drop, connecting cables, solving color codes, etc.). Typically, a code (comprising numbers, letters, signs, etc.) needs to be obtained for progression. To solve the chemistry tasks, approximately 10 different door-openers have been developed. Initial user tests have been conducted, and adjustments were made based on the feedback received, which was satisfactory and positive. In 2024, the "ChemScape" escape room will evolve from a game with a fixed set of tasks to a dynamic escape room game with a dynamic database that allows for the creation of new questions at the same stations, significantly expanding learning opportunities. A virtual chemistry laboratory rat provides hints if a participant gets stuck and requires assistance. Furthermore, "ChemScape" will be trialed in chemistry lectures and potentially utilized as an additional attraction at events held at the University of Applied Sciences.

Development of the UNOChem Game to Improve Students Critical Thinking Skills on Factors that Affect the Reaction Rate Topic

The UNOChem game is a development of the UNO Stacko game that has been modified and designed with chemistry materials. This research aims to develop UNOChem games to improve students' critical thinking skills on the material factors that affect the appropriate reaction rate. The feasibility of the UNOChem game is seen in its validity, practicality, and effectiveness. This research refers to 4D design with three stages: define, design, and development. The limited trial was carried out in class XI-2 of SMAN 1 Kedamean. The indicators used in this study are interpretation, analysis, and inference. The validity was obtained from the results of the game assessment by two chemistry lecturers and one chemistry teacher. Practicality was obtained from observation of student activities and a questionnaire of student responses after using the UNOChem game. Effectiveness was obtained from the student's critical thinking skills test results. The study results showed that the validity obtained in each aspect of the obtaining mode was ≥ 4. The practicality of the UNOChem game based on the results of observation of students' activities as a whole got a practicality percentage of 87.4%. Meanwhile, based on the student response questionnaire, in the aspect of describing the level of students' interest in the UNOChem game, the percentage of practicality was 100%; in the aspect of describing the level of ease of understanding the material and doing critical thinking problems in understanding the material, the percentage of practicality was 93.3%. In describing the ease of using the game in the game, the rate of practicality was 94.9%. The game's effectiveness was obtained through an n-gain test with a score of 0.72. The effectiveness of the media is supported by the Wilcoxon Signed Rank Test (a non-parametric test), which shows a Sig. A value of 0.000 means there is a significant difference, and the UNOChem game can be declared effective. Based on the research results, the UNOChem game is suitable for learning material activities related to factors that affect the reaction rate of class XI high school.

Development of Problem-Based Learning Student Worksheet Integrated with Ethnoscience on Acid-Base Material

This study aims to develop problem-based learning student worksheets integrated with ethnoscience on acid-base materials that are valid and practical. This research uses a development research method (Research and Development) with a 4-D model. The data of this study were collected through validity sheets completed by 4 validators, namely 2 chemistry lecturers and 2 chemistry teachers, and with a practicality questionnaire sheet completed by 2 chemistry teachers and by 35 students of SMAN 1 Batusangkar as respondents. Data were analyzed using quantitative descriptive method, using Aiken’s V. The result for content validity is 0.88 and construct validity is 0.90 with valid category. The result for teachers practicality is 0.95 and students practicality is 0.82 with practical category. Based on the results of the research that has been conducted, it can be concluded that the development of problem-based learning-based student worksheets integrated with ethnoscience on acid-base material is valid and practical.

Development of IPAS on Matter and its Changes Based on PjBL to Improve the Science Process Skills for Grade E Vocational High School

The aim study to produce module of IPAS learning based on project based learning to improve the science process skill for grade E SMK and to determine level of validity practicality and effectiveness. The type of research used research and development (R&D). The development model used 4D models (define, design, development and dessiminate). The module of IPAS learning was validated by three chemistry lecturers from FMIPA UNP and two chemistry teachers from SMK Swasta Bakti Agro Mandiri and SMKN 1 Kempas. Determination of the practicality level of module IPAS learning by two chemistry teachers from SMK Swasta Bakti Agro Mandiri and SMKN 1 Kempas and 30 students of grade E SMK Swasta Bakti Agro Mandiri. The results of the practicality analysis based on teacher and student response questionnaires obtained Aiken scores of 0.97 and 0.93 respectively in the very high practicality category. Therefore, it can be said that the module based on project based learning to improve the science process skill for grade E SMK on matter and its change material is valid, practicable, and effective.

Students’ Attitude and Gender as Determinants of Colleges of Education Students’ Academic Achievement in Chemistry

The study examined students’ attitude and gender as determinants of Colleges of Education students’ academic achievement in chemistry. Three research questions were answered and three hypotheses were also tested. A correlation survey research design was adopted for the study. The population for the study made up of all NCE III chemistry students (1,581) in the North East, Nigeria. A sample size of four hundred and twenty (420) NCE III chemistry students was obtained through multi-stage sampling procedure. An adapted structured questionnaire of Students Attitude Scale, SAS that made up of 2 clusters was used for data collection. A chemistry achievement tests (CAT) was also conducted. The instrument reliability test was done using Cronbach Alpha and index is 0.884 found to be valid and reliable. Data analysis was done using Pearson’s product moment correlation and ANOVA to test the hypotheses at 5% level of significance. The findings showed a significant relationship between students’ positive attitude to chemistry and their academic achievement in chemistry. It was on this note that, a recommendation is made among others factors that NCE chemistry lecturers should make their teaching approaches more stimulating and interesting as to produce a positive attitude from students to chemistry courses and towards their chemistry lecturers. Thereby, create a better learning ability in them for a high academic achievement in chemistry at Colleges of Education

Development of An Interactive E-Module Based on Blended Learning to Enhance Student Independence and Learning Outcomes

This study aims to analyze the feasibility and effectiveness of interactive e-modules based on blended learning to increase independence and learning outcomes on acid-base materials. This research is development research using the Borg & Gall model which consists of ; 1) Research and Information collection, 2) Product planning, 3) Product development, 4) Product validation, 5) Product revision, 6) Product trial. The subjects of this study were chemistry lecturers and chemistry teachers as well as students of SMA Negeri 1 Krembung Sidoarjo who took chemistry specialization. The instruments used were review and validation sheets, learning independence questionnaires, response questionnaires, and learning outcomes test sheets. Data analysis using the N-gain to determine the increase in student independence and learning outcomes. The validation results are processed using the mode of each statement, the results of content validity get mode 5 with very valid criteria, and construct validity get mode 4 with valid criteria. The results of this study indicate that learning chemistry using interactive e-modules based on blended learning can increase learning independence with an n-gain value at 3 meetings of 0.49 in the medium category and learning outcomes with an average n-gain value of 0.69 in the moderate category. Therefore, the interactive e-module based on blended learning developed is feasible and effective to be used to improve students' independence and learning outcomes on acid-base materials.

Implementation of Integrated Problem-Based Learning Model With Ethno Cemistry Sasambo to Improve Chemistry Literation

This research aims to increase the chemistry literation of students through the Integrated Problem Based Learning Model with Ethno Chemistry Sasambo in Analytical Chemistry lecture. The subject of this research is all 86 students who are taking the Chemistry Analytical lecture. Meanwhile, the object is chemistry literation in several aspects such as content, context, competition, and attitude and the response of students toward conducting an Integrated Problem-Based Learning model with local culture in the salt production process. The research methodology used in this research is action class research in three cycles. Each cycle consists of planning, observation, and evaluation-reflection. Results of this work gained are: (1) Increase in students' chemistry literation from mid to high category that can be seen as cycle 1 is 62.8 as enough category, cycle 2 is 70.7 as enough category, and cycle three is 76.7 as high category. (2) Students' response shows that 95% of them stated that they are very interested and wanted more and vary integrated of local culture.

Development of A Chemistry E-Module Based on Project Based Learning Using the Flipbook Application to Improve Learning Outcomes and Train Collaboration on Acid Base Material

This research aims to: (1) determine the validity of PjBL-based e-modules, (2) determine the practicality of PjBL-based e-modules, (3) determine the effectiveness of PjBL-based e-modules, and (4) determine whether there is a significant correlation between collaboration and learning outcomes. This research was conducted at SMA Negeri 1 Stabat with the sample studied being class Data analysis techniques were carried out by: e-module feasibility test according to BSNP, collaboration skills test, and correlation test between collaboration skills and learning outcomes. The results obtained in this research are: (1) The PjBL-based E-module is said to be "valid" after being validated by 1 chemistry lecturer with an average material assessment of 89% and an average media assessment of 95% which can be categorized as " very worthy”; (2) PjBL-based e-modules are said to be "practical" after receiving chemistry teacher responses with an average percentage of 97% which can be categorized as "very feasible" and student responses with an average rating of 87%; (3) The PjBL-based e-module is said to be "effective" with a posttest score of 82.17 which has increased from 47.33. So the N-Gain score was obtained at 0.66 (65.72%) which is in the medium criteria; (4) There is a positive and significant correlation between collaboration skills and student learning outcomes where rcount is 0.593 and rtable is 0.361.

Development of SAC Media Integrated with Project Based Learning Model on Reaction Rate Material

This research aims to determine the analysis of the feasibility level and response of students to SAC (Smart Apps Creator) media integrated with project based learning on reaction rate material. The research method used is Research and Development with a 4D development model approach (define, design, development and disseminate). Research data collection is carried out by interviews and questionnaires or questionnaires that are distributed to teachers and students. This research was conducted at SMAS PAB 8 Saentis. The population and samples in this study are chemistry lecturers, teachers and students of grade XI 2 for the 2023/2024 academic year taken by purposive sampling of 30 people. Based on validity, it shows that the SAC learning media developed was declared valid by validators with the criteria of "Very Feasible" with an average validation score of 89.86%, then based on the results of student responses, it was obtained that the SAC learning media developed as a whole received an average percentage result of 83.81% with the criteria of "Strongly Agree". Therefore, SAC learning media integrated with the project-based learning model on the reaction rate material is suitable for use as a learning medium.

DEVELOPMENT OF E-MODULES BASED ON PROJECT BASED LEARNING (PjBL) TO INCREASE STUDENT’S INTEREST IN LEARNING AND LEARNING OUTCOMES ON REACTION RATE MATERIAL

This research aims to: (1) determine the validity of e-modules based on project based learning, (2) determine the practicality of e-modules based on project based learning, (3) determine the effectiveness of e-modules based on project based learning, and (4) determine whether there is a significant correlation between interest and learning outcomes. This research was conducted at SMA Negeri 10 Medan with the sample studied was class XI IPA 2. The data analysis technique is carried out by: e-module feasibility test according to BSNP, learning interest test, and correlation test between learning interest and learning outcomes. The results obtained in this research are: (1) E-modules based on project based learning are considered "valid" after being validated by 1 chemistry lecturer with an average material assessment of 89% and an average media assessment of 92% which can be categorized as “very feasible”; (2) e-modules based on project based learning can be considered "practical" after receiving chemistry teacher responses with an average percentage of 94% which can be categorized as "very feasible" and student responses with a grade of "very feasible". average grade of 98%; (3) e-module based on project based learning is considered "effective" with a posttest score of 93, an increase from 58, resulting in an N-Gain score of 0.83 (83%), which means it is in the high criteria; (4) There is a positive and significant relationship between interest in learning and student learning outcomes where “rhitung” is 0.6471 and “rtabel” is 0.361. Article History

Development of Guided Inquiry-Based Learner Worksheets to Improve Higher Level Thinking Skills of Learners on Redox Reaction Material

This research aims to: (1) knowing the level of need for guided inquiry-based Learner Worksheets (LKPD) at Imelda Medan Private High School. (2) to know the design of LKPD based on guided inquiry on redox material. (3) knowing the feasibility of LKPD according to BSNP standards. (4) knowing the improvement of students' higher-level thinking skills and. (5) knowing the students' response to the guided inquiry-based LKPD on redox reaction material that has been developed. This development was carried out using the R&D method with the 4D development model (Define, Design, Develop, Disseminate). The instruments used are interview guidelines, LKPD validation sheets by validators, questionnaire sheets for students' responses to the developed LKPD. The results of this study indicate that the LKPD prepared has met the eligibility criteria according to BSNP standards validated by material experts and media experts who are UNIMED chemistry lecturers by obtaining a percentage value of 88.46% with the criteria "very feasible needs revision". The average value of students' higher order thinking skills after being taught using the developed LKPD was 83.48 with an n-gain value of 0.79 and the results of students' responses were 85.14% with "very good" criteria. So that overall the guided inquiry-based Learner Worksheet to improve students' higher-level thinking skills is feasible to use in the learning process, especially in redox reaction material.

THE VALIDITY OF DIGITAL COMIC TO TRAIN METACOGNITIVE SKILLS ON REACTION RATE

This research aims to determine the level of validity of digital comic media on reaction rate to practice developed metacognitive skills. This research is Research Development (RD) with the ADDIE model, through 5 stages, namely analyze, design, development, implement, and evaluate which is limited to the development stage. The instrument used to determine the level of validity is a validation sheet assessed by two chemistry lecturers and one chemistry teacher. The level of validity is obtained based on the value mode of the assessment results of three validators. Based on the results of the validation that has been carried out, the digital comic developed received a score of 4 which is categorized in each aspect of both content and construct which is categorized as valid. So it can be concluded that the digital comics developed are suitable for testing with students.

Kebutuhan Modul Pembelajaran Kimia Kewirausahaan Topik Produktivitas Ikan Nila bagi Generasi Milenial

This research aims to analyze the need for a Chemistry Entrepreneurship Learning Module on the Topic of Tilapia Fish Productivity for the Millennial Generation. This research uses a qualitative descriptive method, with three stages of triangulation, there are questionnaires, interviews, and documentation. The data questionnaire was taken from student respondents in the 5th semester of the 2023/2024 academic year of the Sriwijaya University Chemistry Education Study Program. Interview data was taken from (1) students, (2) lecturers teaching entrepreneurship courses, and (3) Coordinator of the Chemistry Education Study Program. Data documentation was retrieved in the archives of data documentation was carried out in the archives at the Sriwijaya University Chemistry Education Study Program and lecturers who taught entrepreneurship courses. The researchresult show that there is a great need for chemistry learning modules with a STEM approach for entrepreneurship courses on the topic of Tilapia Fish Productivity for the Millennial Generation.

Development of Chemistry Lecture Sets for Reducing Logical Fallacy in Arguing

Objective: This study aims to develop a lecture set designed to reduce the occurrence of logical fallacies by training students' argumentation skills. Method: The lecture sets were developed to refer to the stages of the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). Validity was validated by three validators on student activity sheets and argumentative ability assessment sheets. The validity of the test results was obtained based on the mode of calculation and the percentage of agreement between validators. Results: The lecture sets are structured by containing six types of logical fallacies, namely relative privation, blind authority fallacy, hasty generalization, questionable cause fallacy, reification fallacy, and non sequitur, and includes general chemistry lecture material, namely stoichiometry, atomic structure, periodicity of elements, chemical bonds, the concentration of the solution, the equilibrium of ions in the solution, and the colligative properties of the solution. The chemistry lecture sets for reducing logical fallacies in arguing has been declared valid by the validator. Novelty: The results of this study can be used as a reference by teachers, lecturers, or other researchers who wish to study more about logical fallacies.

Need Analysis for Development (E-Module) of Analytical Chemistry Integrated with Environmental Analysis Research Results

The current condition is still limited to analytical chemistry teaching materials that are integrated with research results, only using Analytical Chemistry textbooks as teaching materials or in the form of e-books. This is one of the causes of the lack of student interest in participating in the teaching and learning process. The purpose of this research is to produce innovative teaching materials in analytical chemistry based on research results, aiming to enhance students' interest in learning.This research is the initial stage as a basis for developing analytical chemistry e-modules integrated with research results. The development model used is ADDIE which consists of five stages, namely Analysis, Design, Development, Implementation and Evaluation. This research is limited to the needs analysis stage which includes RPS analysis, analysis of problems and needs of lecturers and problems and needs of students. Data collection instruments used interviews and questionnaires. The subjects of this study consisted of 6 Analytical Chemistry lecturers and 59 students from Riau Province, Riau Islands, North Sumatra, and West Java. The research results of this preliminary analysis include RPS analysis where there are 10 topics of study material and based on the needs questionnaire the topic of quantitative analysis is the topic with the highest percentage to be developed into an e-module. Then also obtained the results that there are still some shortcomings with the teaching materials used today, so that 98% of lecturers and students stated that they need the development of teaching materials, especially those that are digital-based and can be integrated with research results which are evidence of the implementation of analytical chemistry learning theory.

Utilization of Printing Plate Waste As Applied Chemistry Learning Media For Using Engraving and Knocking Techniques

This study aims to utilize printing plate waste as alternative to making applied chemistry learning media using engraving and knocking techniques. The method includes three stages namely preproduction, production, and postproduction. Activities carried out in preproduction were collecting data through observation, interviews, literature studies, making pattern designs and teaching materials, and preparing tools and materials. The production stage focused on manufacturing the product. The product was hammered using hammer wrapped in paper adhesive and also engraved using CNC lasercutting machine. The postproduction stage included monitoring and evaluation and improvement of research products. The result was a set of learning media consisting of five media made of plates and one stand where media was placed. This learning media can be used in applied chemistry lectures to make it easier for graphic engineering students at Politeknik Negeri Media Kreatif to understand the lessons taught in class.
 Keywords: printing plate waste, applied chemistry media, engraving, knocking techniques

Investigating the Relations between Students’ Chemistry Mindset, Self-Efficacy, and Goal Orientation in General and Organic Chemistry Lecture Courses

Investigating the Relations between Students’ Chemistry Mindset, Self-Efficacy, and Goal Orientation in General and Organic Chemistry Lecture Courses

Development of PowerPoint-iSpring Learning Media on Green Chemistry and Global Warming Topics Phase E SMA/MA

PowerPoint-iSpring media supports the learning process where it can display images, videos, animations, text, and others that can increase student activity and learning outcomes. The aim of this research is to produce valid PowerPoint-iSpring learning media on green chemistry and global warming phase E SMA/MA. The type of research used is Educational Design Research with the Plomp model. The validity test was carried out by four chemistry lecturers at FMIPA UNP and two teachers at SMAN 14 Padang by filling out a validation questionnaire. One-to-one evaluation was carried out by three students with different levels of ability. Validation data was analyzed using the Aiken' V index. The results of the content validity test research obtained a value of 0.92 for green chemistry and global warming in the valid category. The construct validity test obtained a value of 0.93 in the valid category and the technical quality validity test obtained a value of 0.93 in the valid category. The average validity test result of PowerPoint-iSpring learning media on green chemistry and global warming is 0.92 in the valid category. The results of the one-to-one evaluation received a good response from students.