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All Journal Jurnal Pendidikan Bahasa Jepang Undiksha Wacana: Jurnal Ilmiah Ilmu Komunikasi JURNAL PENDIDIKAN TAMBUSAI Jurnal Pengabdian Masyarakat Indonesia Indo-MathEdu Intellectuals Journal SEMESTA: Journal of Science Education and Teaching Mudabbir: Journal Research and Education Studies UNIVERSE : Journal of Science Education Teaching and Learning JIPI (Jurnal IPA dan Pembelajaran IPA) IJIS Edu : Indonesian Journal of Integrated Science Education
Oktavia, Rani
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Humanities Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Education Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Physics Public Health Social Sciences Other

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Journal : SEMESTA: Journal of Science Education and Teaching

 1 
IMPROVING STUDENTS’ LEARNING OUTCOMES THROUGH PROBLEM-BASED LEARNING MODEL ON LIGHT AND OPTICAL DEVICES TOPIC Syukria, Mila; Oktavia, Rani
SEMESTA: Journal of Science Education and Teaching Vol. 7 No. 2 (2024): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol7-iss2/513

Abstract

This study aims to determine the improvement of science learning outcomes of students of SMP Negeri 25 Padang through the application of the Problem Based Learnig (PBL) learning model. The subjects in this study are 33 students. This research is a Class Action Research that refers to the Kemmis and Taggart models. This research was carried out in 3 cycles consisting of planning stages, implementation of actions, observation, and reflection. Research data in the form of cognitive learning outcomes were taken using multiple-choice test and description techniques. The learning outcomes in cycle I were 36.3%, in cycle II it was 72.7%, and in cycle III it was 90.9%. The results of the study show that the Problem Based Learning (PBL) learning model can improve student learning outcomes.
THE EFFECT OF VIDEO-ASSISTED PROBLEM BASED LEARNING MODEL ON STUDENTS’ LEARNING OUTCOMES ON INDONESIAN ECOLOGY AND BIODIVERSITY TOPIC Indah, Dara Puspa; Oktavia, Rani; Arif, Khairil; Putri, Azza Nuzullah
SEMESTA: Journal of Science Education and Teaching Vol. 7 No. 2 (2024): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol7-iss2/525

Abstract

This research .was based on the results of a preliminary study conducted at SMPN 16 Padang, which showed that students' cognitive learning outcomes were still not optimal in science learning. This research aims to determine the influence of the video-assisted Problem Based Learning (PBL) model on learning outcomes for Indonesian Ecology and Biodiversity Material. This type of research is a quasi experiment with a non equivalent control group design research design. The population in this study were all the 7th grader at SMPN 16 Padang. Sampling used purposive sampling technique. So we obtained one experimental class by applying the video-assisted Problem Based Learning model, namely class VII.6 and one control class with the conventional learning model, namely class VII.7. Data collection was carried out through pre-test and post-test. The data obtained were analyzed using inferential statistical analysis and the results obtained from the similarity test of the two pre-test and post-test averages were respectively 0.067 for the pre-test sig, and 0.000 for the post-test sig, which means that H0 is rejected or there is a significant difference in both classes because sig < 0.05. Thus, it can be concluded that there is a significant influence of the application of the video-assisted PBL model on the learning outcomes of Indonesian ecology and biodiversity material.
The Effect of Project Based Learning Model on Students’ Learning Outcomes at SMPN 1 Payakumbuh Khairunnisa, Kania; Lestari, Tuti; Muttaqiin, Arief; Oktavia, Rani
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 1 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss1/515

Abstract

This research is motivated by a learning process that only uses conventional models, so that in class it only focuses on the delivery of material by the teacher. Students are only asked to listen and take notes on the material presented, so that this has an impact on low student learning outcomes. This research aims to determine the effect of the Project Based learning model on the learning outcomes of the 8th grader at SMPN 1 Payakumbuh. This type of this research is quasi experiment using a non-equivalent control group design. This design begins with giving a pretest and ends with giving a posttest to the experimental and control groups. The sampling technique used was purposive sampling. Based on the results of the student response questionnaire to the Project Based learning model, a percentage of 86.45% was found to be in the very good category. Based on the results of hypothesis testing using the t test, a significance value of 3.685 > 2.0003 was obtained, meaning that there is a significant difference in the learning outcomes of students who use the Project Based Learning model and the learning outcomes of students who use conventional learning models. The results of the experimental class N-Gain test were found to be 0.55 in the medium category. It can be concluded that in this research, the Project Based Learning model has a significant influence on the learning outcomes of class VIII students at SMPN 1 Payakumbuh.
Pengaruh Model Pembelajaran Berbasis Masalah terhadap Keterampilan Berpikir Kritis Peserta Didik di SMPN 7 Padang Sarmila; Oktavia, Rani; Azzahra, Firda; Muttaqiin, Arief; Prima Sari, Monica
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 1 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss1/551

Abstract

Observations and interviews with science teachers at SMPN 7 Padang revealed that learning that trains students' critical thinking skills has not been implemented optimally. When students gave answers or asked questions related to the material in science learning, they were still hesitant or limited to understand, also scientific attitude towards science learning. The literature states that Problem Based Learning (PBL) model is able to train students' critical thinking skills. PBL shows effective approach to increase students’ potential and develop students’ critical thinking skills. Therefore, this study was conducted to determine the effect of the Problem Based Learning model on the Critical Thinking Skills of Grade VIII Students at SMP Negeri 7 Padang. This quantitative study used a quasi-experimental design with a pretest-posttest control group design. PBL Model as the independent variable in this study was employed to experimental class, while dependent variable was students’ critical thinking skills tested in both experimental and control class. The measurement of students’ critical thinking skills consisted of five indicators such as elementary clarification, basic support, inference, advance clarification, and strategy and tactics. The results showed a significant increase in students' critical thinking skills in the experimental group compared to the control group (p<0.05). It can be concluded that Problem Based Learning model significantly improve students’ critical thinking skills.
THE EFFECT OF PjBL-STEM MODEL ON COGNITIVE ABILITY OF STUDENTS IN PHASE D OF THE MATTER OF VIBRATION, WAVES AND LIGHT SUBJECT ON 8TH GRADE Sari, Fine Dwina; Putri, Rahmah Evita; Oktavia, Rani; Putri, Azza Nuzullah
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 1 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss1/552

Abstract

Cognitive ability is one of the essential aspects emphasized in the Merdeka Curriculum. One of the ways to enhance students’ cognitive ability is by applying the Project Based Learning-STEM (PjBL-STEM) model. This research was motivated by observations conducted on Grade VIII students at SMPN 21 Padang during the 2024/2025 academic year. The observations revealed that although the teacher implemented the PjBL-STEM model, its application was not fully optimal. The purpose of this study was to determine the effect of the PjBL-STEM learning model on students’ cognitive ability on the topic of vibration and wave. This study employed a quasi-experimental method with a posttest control group design. Purposive sampling was used to select the samples. Grade VIII students taught using the PjBL-STEM model served as the experimental group, while another Grade VIII class taught using conventional discovery learning served as the control group. The research instrument was an objective written test. The collected data were analyzed using normality, homogeneity, and hypothesis testing. The t-test results showed a t-count of 10.283 and a t-table value of 2.036, where tcount ≥ ttable. Therefore, H0 was rejected and H1 was accepted, indicating a significant effect of the PjBL-STEM model on students’ cognitive ability in junior high school.
Literature Review: Factors Influencing Creativity in Junior High School Students’ Science Learning Chova, Septiza Kurnia; Muttaqiin, Arief; Oktavia, Rani
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 2 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss2/543

Abstract

Creativity refers to the ability to generate novel ideas and skills from ordinary situations, characterized by fluency, flexibility, and originality. Creative students continuously seek innovative ways to address problems in their daily lives. In the context of science education, such students tend to find creative science problems easier to solve, as they already possess effective problem-solving strategies. This study employs a literature review method by analyzing 16 selected articles from Google Scholar that met specific inclusion criteria. The main objectives of this research are to (1) evaluate the creativity levels of Indonesian high school students in science learning and (2) identify the factors that influence their creativity in this field. The findings reveal that the overall creativity level of Indonesian high school students is categorized as low, contrasting with the expected higher level. Factors affecting students’ creativity include the implementation of diverse learning models, teachers’ pedagogical competence, and students’ comprehension of the subject matter.
Pengaruh Model Pembelajaran Search, Solve, Create, and Share (SSCS) terhadap Keterampilan Literasi Sains Peserta Didik Anggraini, Wulan; Yurnetti, Yurnetti; Oktavia, Rani; Arif, Khairil
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 2 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss2/553

Abstract

Contemporary science education aims to equip students with the competencies needed to address the complex challenges of the 21st century, particularly within the framework of Industry 4.0, where scientific literacy is recognized as a fundamental skill. However, students’ low levels of scientific literacy are often attributed to passive, text-based, and teacher-centered learning methods. This study aims to examine the effect of the Search, Solve, Create, and Share (SSCS) learning model on the scientific literacy of seventh-grade students at SMPN 5 Mandau in the topic Forms of Matter and Their Changes. The study employed a quasi-experimental design with a non-equivalent control group design. The sample consisted of two classes selected through purposive sampling. Research data were analyzed using descriptive and inferential statistics with the aid of Microsoft Excel. The results of the hypothesis testing revealed a significant difference in the average scores between the two classes after the implementation of the SSCS learning model. The posttest analysis showed that the calculated t-value (tcount = 2.458) was greater than the critical t-value (ttable = 2.004), indicating that the SSCS learning model had a significant positive effect on students’ scientific literacy.
Validity and Practicality of PBL-SSI E-Module on Ecology and Biodiversity Topic for Junior High School Nispu Rahma, Septina; Oktavia, Rani; Yurnetti
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 2 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss2/638

Abstract

Teaching materials, as one of the essential components in the learning process, must evolve in line with rapid technological advancements. Therefore, E-module teaching materials need to be developed to enhance students’ understanding and learning outcomes. This study employed Research and Development (R&D) with the 4D model (Define, Design, Develop, and Disseminate) to develop a Problem-Based Learning (PBL)-based E-module integrated with Socio-Scientific Issues (SSI) on ecology and biodiversity topics for junior high school students. The research instruments included teacher interview sheets, student needs analysis questionnaires, validity questionnaires, and practicality questionnaires. Data were analyzed for validity and practicality. The findings revealed that the developed PBL-based E-module integrated with SSI achieved a very valid category, with an average validity score of 90%, and a very practical category, with an average practicality score of 96%. It can be concluded that the PBL-based science learning E-module integrated with SSI on ecology and biodiversity meets the criteria of validity and practicality, making it suitable for use by teachers and students.
The Implementation Of Case Based Learning (CBL) Model To Improve Student’s Problem Solving Skills In SMP Negeri 30 Padang Zya Zya Gusya, Cheryna; Oktavia, Rani; Yanto, Febri; Wati, Fatma
SEMESTA: Journal of Science Education and Teaching Vol. 8 No. 2 (2025): Semesta: Journal of Science Education and Teaching
Publisher : Pendidikan IPA, FMIPA, UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/semesta/vol8-iss2/639

Abstract

This study aims to examine the effect of implementing the Case-Based Learning (CBL) model on the problem-solving skills of eighth-grade students at SMP Negeri 30 Padang. The research population consisted of all eighth-grade students at the school. A quasi-experimental design with a non-equivalent control group was employed. The sample was selected using a purposive sampling technique, resulting in classes VIII B and VIII D being chosen as the experimental and control groups, respectively. The experimental class was taught using the CBL model, while the control class received instruction through a conventional learning model. Data were collected through pretest and posttest in the form of essay-type questions administered to both groups. The data were analyzed using the tʹ-test. The results indicated a significant difference in the mean scores between students taught using the CBL model and those taught using the conventional model. The tʹ-test results showed that tcount > ttable (8.544 > 2.009), leading to the acceptance of the alternative hypothesis and rejection of the null hypothesis. It can be concluded that the CBL model had a significant positive effect on the problem-solving skills of eighth-grade students at SMP Negeri 30 Padang.
Co-Authors Amira, Silviana Anggraeni, Rara Anggraini, Wulan Anwary, Faradisha Rauva Arfianty, Rani Arief Muttaqiin Arif*, Khairil Arif, Khairil Aulia, Putri Azhar, Aulia Azza Nuzullah Putri Azzahra, Firda Chova, Septiza Kurnia Fatma wati Fatmawati Fatmawati Febri Yanto, Febri Fitri, Annisa Nur Hery Setiyawan Ilham, M.Rifki Ilmi, Ahmad Tantowi Indah, Dara Puspa khairunnisa, kania Lestari, Tuti Maheswari, Alesia Nala Mailiyawati, Ghina Mardhiah, Hayatul Mardhiyah, Wafiq Meiyelti, Meiyelti Nispu Rahma, Septina Oktafiani, Dewi Prima Sari, Monica Putri, Niken Dwi Putri, Rahmah Evita Puyanti, Puyanti Raudhatul Jannah Renol Afrizon Safitri, Ravena Aulia Sari, Fine Dwina Sarmila Surawan, Surawan Syukria, Mila Yurnetti Yurnetti, Yurnetti Zahra, Firda Az Zya Zya Gusya, Cheryna