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The Development of Artificial Learning Media to Fasilitate Active Learning to Improve Learning Outcome on The Teaching of Gas Chromatography Safitri, Rahma; Situmorang, Manihar
Jurnal Teknologi Pendidikan : Jurnal Penelitian dan Pengembangan Pembelajaran Vol 9, No 2 (2024): April
Publisher : UNDIKMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jtp.v9i2.10631

The aim of this research is to develop artificial learning media to facilitate active learning to improve student learning outcomes in gas chromatography material separation chemistry, determining the suitability of website media as assessed by material expert validators, learning experts, and design experts, as well as describing the effectiveness of this media in improving student learning outcomes on the concept of gas chromatography. This Research and Development uses the ADDIE model (Analysis, Design, Development, Implementation and Evaluation). Test the product conducted in small groups consisting of 27 students from two classes. Expert material, prayer a learning expert, two design experts, and pre-test and post-test results were used collect data, which is then explained and described. Validators stated that website media was suitable for use in the learning process with an average score of: 93.5%, 95.3%, and 97.2% with very feasible criteria and media created by this website has been effective in improving student learning outcomes and can be used in learning process. The average pre-test score is 70.65/150 while the average post-test score is 124.25/150 obtained. with a standard error of 0%, and effectiveness reaching 90% using Shapiro Wilk data processing in SPSS 16

Development and Implementation of an Innovative Virtual Laboratory for Acid-Base Titrations to Improve Chemistry Learning Outcomes Lara, Setia; Situmorang, Manihar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 3 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

The use of virtual laboratories needs to be encouraged to adapt students' daily digital lives. This study aims to provide a virtual laboratory as multimedia for teaching Acid-Base Titration. The research was conducted involving class XI Science students, grouped into experimental class and control class. The research include providing an innovative virtual laboratory for the topic of Acid-Base Titration, and implementing it for chemistry teaching. The virtual laboratory has been packaged on a Web basis for hybrid learning, implemented in experimental classes, through short teaching, explanations on how to use virtual, and giving assignments. The control class was given conventional teaching with assignments. The research results showed virtual laboratories are effective in facilitating students' active learning. Sequential student learning outcomes from assignment results in the experimental class (M=84.80±6.90) were higher than the control class (M=78.24±7.45), posttest scores in the experimental class (M=83.00±4.95) were also higher than control class (M=65.40±7.02), and the two were significantly different (t-test 10.244 > t-Crit. 1.677). Learning chemistry using a virtual laboratory gives the impression of long-remembered learning, and is a good strategy for improving learning outcomes. Virtual laboratories are very interesting and are a new approach to motivate students to learn optimally.Keywords: Virtual Laboratory, Acid-base titration, Learning outcomes, Active learning, Chemistry TeachingDOI: 10.23960/jppk.v13i3.30630

Implementation PhET Virtual Laboratory-Based Learning Media to Increase Learning Outcomes on Teaching of Acid-Base Pardosi, Ijayanti; Situmorang, Manihar
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 6 No. 1 (2024): APRIL 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i1.57330

Chemistry learning contains abstract concepts that require understanding through three levels of representation. So that innovative learning media is needed that supports the achievement of concepts learned in chemistry, especially in acid-base material. This research aims to develop and implement PhET virtual laboratory-based learning media to build student activeness in learning and improve student learning outcomes in learning the topic of Acid-Base. The use of this innovative learning media is supported by a project-based learning model. This research was conducted by research and development (RnD) with the procedures of define, design, development, and implementation. The research includes the development of PhET laboratory-based learning media, standardization of learning media, and implementation to students in class XI MIPA SMA Negeri 5 Medan, SMA Negeri 1 Habinsaran and SMA Negeri 1 Borbor in sample classes, namely Control class and Experiment Class. The feasibility of the learning media measured 87.06% with a very feasible category. The results of the media implementation can be seen in the N-gain value in the experimental class higher than the control class with a value at SMA Negeri 5 Medan 60.9%, SMA Negeri 1 Habinsaran 68.69%, and SMA Negeri 1 Borbor 67.03% with each in the effective category.

A Needs Analysis of Inquiry-Based Virtual Laboratory for Acid–Base Titration Rudi Purwanto; Manihar Situmorang; Ajat Sudrajat
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 7 No. 1 (2025): APRIL 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v7i1.67602

Traditional instructional methods, such as PowerPoint and video presentations, often fall short in promoting deep understanding and student engagement, particularly in complex topics like acid–base titration. This study investigates the need for innovative, inquiry-based learning resources integrated with virtual laboratories to support instructional improvement in analytical chemistry. A descriptive qualitative approach was used, involving in-depth interviews with a lecturer and a student, as well as questionnaires completed by 29 students. The findings reveal widespread dissatisfaction with current learning resources due to limitations in interactivity, completeness, and applicability. Most students strongly agreed on the need for enhanced instructional materials, inquiry-driven learning models, and simulation-based tools. A feasibility assessment of existing materials showed high scores in language clarity but highlighted the need for improvements in content quality and visual presentation. These results underscore the importance of combining guided inquiry with virtual laboratories to enhance conceptual understanding, engagement, and critical thinking. The study contributes practical insights for designing more effective learning environments in chemistry education, especially in settings with limited access to physical laboratory facilities.

Innovative Project-Based Learning Resources to Develop Critical Thinking Skills of Students in Basic Chromatography Instruction Simalango, Meilin; Situmorang, Manihar
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 5 No. 2 (2023): OCTOBER 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i2.54499

Abstract: This study is a Research and Development (R&D) aimed at developing project-based innovative learning resources in the form of E-LKM on the topic of Chromatography with the goal of assessing its effectiveness in improving critical thinking skills and students' learning outcomes. The development method used is the ADDIE model with 3 cycles of implementation stages. The development results indicate that the project-based E-LKM has an average total feasibility score of BSNP = 3.85, categorized as very feasible, and an N-gain score of 0.72, equivalent to a percentage of 72%, indicating high effectiveness. During field trials, there was an increase in the average scores M4 > M3 > M1, indicating an improvement in students' abilities in the Chromatography teaching process. Hypothesis testing results show a significant difference between students' learning outcomes before and after using the developed project-based innovative learning resources. Additionally, based on the correlation calculation between critical thinking skills and students' learning outcomes, it was found that there is a significant positive correlation. Thus, it can be concluded that project-based innovative learning resources are effective in improving students' learning outcomes, and there is a correlation between critical thinking skills and students' learning outcomes in the context of teaching chromatography.Keywords: Innovative Learning Resources, E-LKM (Electronic Learning Module), PjBL (Project-Based Learning), Critical Thinking Skills, Chromatography.

Needs Analysis of Innovative Chemistry Teaching Materials Integrated with Ethnopedagogy Oriented to 21st Century Learning Siswanto, Siswanto; Tarigan, Anjany Tasya Surabika; Silaban, Ramlan; Situmorang, Manihar
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 7 No. 2 (2025): OCTOBER 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

21st-century education emphasizes six core competencies: critical thinking, creativity, collaboration, communication, character, and citizenship. However, the PISA 2022 results indicate that Indonesia’s performance remains relatively low, highlighting the need for improvement in developing students’ essential skills. This study aims to analyze the needs for innovative chemistry teaching materials that are integrated with ethnopedagogy and oriented toward 21st-century learning as an effort to enhance students’ 21st-century competencies. This research employed a descriptive qualitative approach conducted at SMP Negeri 1 Sei Bingai, Langkat Regency, using interviews, observations, and document analysis. The data were analyzed through four stages: data collection, data reduction, data presentation, and conclusion drawing. The results showed that the current science textbooks do not adequately support the development of 21st-century skills, and teachers reported that students’ competencies in this area remain low. All science teachers expressed the need for teaching materials integrated with ethnopedagogical. Furthermore, 74% of students indicated a need for innovative learning materials, 90% desired the integration of ethnopedagogy, and 94% supported the implementation of 21st-century learning approaches. These findings highlight the need for innovative, contextual, and culturally based chemistry materials to enhance students’ 21st-century skills and learning experiences.

The Development of Artificial Learning Media to Fasilitate Active Learning to Improve Learning Outcome on The Teaching of Gas Chromatography Safitri, Rahma; Situmorang, Manihar
Jurnal Teknologi Pendidikan : Jurnal Penelitian dan Pengembangan Pembelajaran Vol. 9 No. 2 (2024): April
Publisher : UNDIKMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jtp.v9i2.10631

The aim of this research is to develop artificial learning media to facilitate active learning to improve student learning outcomes in gas chromatography material separation chemistry, determining the suitability of website media as assessed by material expert validators, learning experts, and design experts, as well as describing the effectiveness of this media in improving student learning outcomes on the concept of gas chromatography. This Research and Development uses the ADDIE model (Analysis, Design, Development, Implementation and Evaluation). Test the product conducted in small groups consisting of 27 students from two classes. Expert material, prayer a learning expert, two design experts, and pre-test and post-test results were used collect data, which is then explained and described. Validators stated that website media was suitable for use in the learning process with an average score of: 93.5%, 95.3%, and 97.2% with very feasible criteria and media created by this website has been effective in improving student learning outcomes and can be used in learning process. The average pre-test score is 70.65/150 while the average post-test score is 124.25/150 obtained. with a standard error of 0%, and effectiveness reaching 90% using Shapiro Wilk data processing in SPSS 16

Development and Implementation of an Innovative Virtual Laboratory for Acid-Base Titrations to Improve Chemistry Learning Outcomes Lara, Setia; Situmorang, Manihar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 3 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

The use of virtual laboratories needs to be encouraged to adapt students' daily digital lives. This study aims to provide a virtual laboratory as multimedia for teaching Acid-Base Titration. The research was conducted involving class XI Science students, grouped into experimental class and control class. The research include providing an innovative virtual laboratory for the topic of Acid-Base Titration, and implementing it for chemistry teaching. The virtual laboratory has been packaged on a Web basis for hybrid learning, implemented in experimental classes, through short teaching, explanations on how to use virtual, and giving assignments. The control class was given conventional teaching with assignments. The research results showed virtual laboratories are effective in facilitating students' active learning. Sequential student learning outcomes from assignment results in the experimental class (M=84.80±6.90) were higher than the control class (M=78.24±7.45), posttest scores in the experimental class (M=83.00±4.95) were also higher than control class (M=65.40±7.02), and the two were significantly different (t-test 10.244 > t-Crit. 1.677). Learning chemistry using a virtual laboratory gives the impression of long-remembered learning, and is a good strategy for improving learning outcomes. Virtual laboratories are very interesting and are a new approach to motivate students to learn optimally.Keywords: Virtual Laboratory, Acid-base titration, Learning outcomes, Active learning, Chemistry TeachingDOI: 10.23960/jppk.v13i3.30630

THE DEVELOPMENT OF INNOVATIVE LEARNING MATERIAL WITH A PROJECT TO IMPROVE STUDENT'S CRITICAL THINKING SKILLS IN THE TEACHING OF REDOX TITRATION Silalahi, Gielf Justin Salisia Silrumson; Situmorang, Manihar
Chimica Didactica Acta Vol 12, No 1: June 2024
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v12i1.34956

Self-directed learning has become popular in higher education worldwide in recent years. As a result, students may have difficulty understanding higher education standards. Therefore, innovative learning materials that are relevant and easy to understand by students and provide opportunities for developing student's character so that they are competent in developing their knowledge capacity independently through high-level thinking skills such as critical thinking. Through the research and development method using the ADDIE Model, teaching materials are created by integrating the PjBL learning model to measure product feasibility scores, students' critical thinking abilities, and know student responses and learning outcomes. Based on the validation results, the average value of the validation results obtained was 89% (valid). After testing the product, it was discovered that the student response was 87.68% (good), the average critical thinking ability score was 87.36, indicating an increase and the average learning outcomes obtained by students were from 56.80 to 87.38, indicating an increase. Overall, the integrated teaching materials for the PjBL learning model on Redox Titration material are suitable.

Pengembangan Virtual Laboratorium Sentrifusi pada Pembelajaran Berbasis Proyek sebagai Media Pembelajaran untuk Meningkatkan Hasil Belajar Mahasiswa Sirumapea, Mutiara Sani; Situmorang, Manihar
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v5i4.729

Chemistry learning on the topic of separation through the centrifuge process in higher education has not been implemented through practical work, due to the limited availability of relevant laboratory activities. As a result, centrifuges are rarely used and students do not understand how to operate them. This condition causes the learning process to focus on delivering theory without practical experience, so that students' understanding of the concept of centrifuges becomes shallow and has an impact on low learning outcomes. This study aims to develop a virtual centrifuge laboratory learning media based on assignment projects in the form of questions, and to improve student learning outcomes. The method used is Research and Development (R&D) with the ADDIE model. The research subjects consisted of 34 students of the Chemistry Study Program. The research instruments included a non-test instrument in the form of a media expert validation questionnaire, as well as a test instrument in the form of pre-test and post-test questions. The validation results showed that the learning media was classified as "feasible" with an average score of content feasibility of 3.50; language feasibility of 3.64; and presentation feasibility of 3.31. The results of the media trial showed an increase in learning outcomes in the experimental class, with an N-Gain value of 73.17%, higher than the control class's 48.17%. Thus, the use of project-based virtual laboratories is effective in improving learning outcomes and can be an alternative to practical work in separation chemistry lessons.

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