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All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Bioma : Jurnal Biologi Indonesia Journal of Physics and Its Applications JURNAL PENDIDIKAN TAMBUSAI Biopendix: Jurnal Biologi, Pendidikan dan Terapan Community Development Journal: Jurnal Pengabdian Masyarakat MAHESA : Malahayati Health Student Journal Jurnal Pengabdian Masyarakat (ABDIRA) Indonesian Science Education Research (ISER) Indo-MathEdu Intellectuals Journal SEMESTA: Journal of Science Education and Teaching Mudabbir: Journal Research and Education Studies Journal of Comprehensive Science Jurnal Pendidikan Transformatif SEAQIS Journal of Science Education UNIVERSE : Journal of Science Education Teaching and Learning conomics Learning Experience & Social Thinking Education Journal
Lestari, Tuti
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

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The Effect Of Project Based Learning Model Based STEM On The Knowledge Competence Of Class VII Students Of SMPN 8 Payakumbuh Kurnia, Irma; Lestari, Tuti
Universe Vol 6 No 1 (2025): Journal of Science Education Teaching and Learning
Publisher : Department of Science Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/universe.v6i1.588

Abstract

The low competence of knowledge can arise due to factors that influence learning, namely the method factors used during the learning process in class, the use of learning models that are less varied, and the enthusiasm of students in learning is still low. One learning model that can be tried to be applied to overcome this problem is the STEM-based Project-based learning model. This research is a type of quasy experiment research that aims to determine the effect of the application of STEM-based project-based learning models on the knowledge competence of class VII students of SMPN 8 Payakumbuh. The research design used was a non equivalent control group design. In the experimental class, STEM-based Project Based Learning was applied, while in the control class, conventional learning was applied. The results of hypothesis testing based on the data obtained in the posttest data research, namely H1 is accepted and H0 is rejected, it can be interpreted that there is a significant average difference in the learning outcomes of students in the experimental class and the control class. So that there is an influence of the project based learning learning model on the knowledge competence of students
DEVELOPMENT OF SCIENCE E-MODULES FOR JUNIOR HIGH SCHOOL CLASS VII BASED ON SCIENCE TECHNOLOGY SOCIETY ON TEMPERATURE AND HEAT MATERIAL Puteri, Dini Eka; Lestari, Tuti
Universe Vol 6 No 1 (2025): Journal of Science Education Teaching and Learning
Publisher : Department of Science Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/universe.v6i1.597

Abstract

Based on the results of the analysis that has been carried out, the data obtained shows that the teaching materials used in schools have not been able to support learning optimally. Students prefer if the teaching materials used are equipped with attractive images, use language that is easy to understand, the material presented is brief, concise, and clear, has work instructions for each activity, is equipped with videos, and practice questions. This type of research is Research and Development (R&D) with the ADDIE development model which consists of the stages of analysis, design, and development. The research instrument consists of a needs analysis questionnaire, validity test questionnaire, and practicality test questionnaire. The data obtained were analyzed using the Likert Scale formula to analyze the results of validity and practicality tests. Based on the results of the research conducted, it was found that the results of the e-module validity test by experts or lecturers were declared very valid with a percentage of 89%, the results of the practicality test by science teachers were declared very practical with a percentage of 94%, the results of the practicality test by students were in the practical category with a percentage of 79%.
Pengaruh Penerapan Model Learning Cycle 7E Berkonteks Socio-Scientific Issues (SSI) terhadap Hasil Belajar Peserta Didik Kelas VII SMPN 2 Pariaman Nebila, Tiara; Lestari, Tuti; Azhar, Aulia; Fatmawati, Fatmawati
Jurnal Pendidikan Tambusai Vol. 9 No. 2 (2025): Agustus
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i2.30986

Abstract

Studi ini mengkaji pengaruh penerapan model Learning Cycle 7E (LC7E) yang dikolaborasikan dengan SSI sebagai konteks dalam pembelajaran terhadap hasil belajar. Desain penelitian yang dipakai dalam penelitian ini adalah kuasi-eksperimen dengan kelompok kontrol non-ekuivalen, dan sampel penelitian terdiri dari semua peserta didik kelas tujuh di SMPN 2 Pariaman. Sampel untuk penelitian ini dipilih dengan teknik purposive sampling, yaitu kelas VII.4 dan VII.7. Kelompok eksperimen menggunakan model LC7E yang dikombinasikan dengan konteks SSI selama implementasi. Namun, kelompok kontrol mengikuti pendekatan pengajaran tradisional. Soal pilihan ganda digunakan sebagai alat pra- dan pasca-tes untuk mengumpulkan data dari kedua kelompok. Hasilnya menyoroti perbedaan yang signifikan dalam skor rata-rata peserta didik yang diberi perlakuan dengan model LC7E dengan konteks SSI dan mereka yang diberi perlakuan dengan model konvensional. Uji-t menghasilkan nilai t hitung sebesar 2,581373352, lebih besar daripada nilai t kritis sebesar 2,004879288, sehingga ditolak dan diterima. Implikasinya adalah model Learning Cycle 7E dengan konteks SSI memberikan dampak yang signifikan terhadap prestasi akademik siswa kelas 7 di SMPN 2 Pariaman.
Determination of Planning Target Volume (PTV) Margins Using Redefined Systematic and Random Error Equations from Single-Fraction Verification Data: A Case Study of Cervical Cervic Lestari, Tuti; Muttaqin, Afdhal; Hanisti, Fidhia; Diyona, Fiqi
Journal of Physics and Its Applications Vol 7, No 3 (2025): August 2025
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v7i3.24532

Abstract

This study aimed to determine the Planning Target Volume (PTV) margin by redefining the equations for systematic and random errors in a cervical cancer case. The research utilized first-fraction radiotherapy position verification data from 37 cervical cancer patients. These data comprised planned and actual positions, with the difference interpreted as the position shift. The systematic and random error equations proposed by the Royal College of Radiologists (2008) were redefined by adapting them to verification data, which were grouped into several PTV types and treated as daily fractions. The PTV margin was then calculated using formulas by Van Herk (2004), Stroom (2002), and ICRU Report 62. The results showed that the largest systematic and random errors occurred in the vertical and longitudinal directions, measuring 0.83 cm and 1.71 cm, respectively. The PTV margin calculated using the Van Herk method was comparatively larger than those obtained using the other two methods. The percentages of position shifts that exceeded the calculated PTV margins in the vertical, longitudinal, and lateral directions were 16%, 43%, and 35%, respectively. These findings indicate that the redefined equations are capable of compensating for the lack of position shift data across all radiotherapy fractions. The redefined approach can provide a more accurate estimation of PTV margins in cervical cancer treatment using single-fraction verification data. 
The Effect Of Creative Problem Solving Model On The Creative Thingking Skill Of Student At Smp Negeri 29 Padang Fitri, Nurmiati; Arif, Khairil; Lestari, Tuti; Yanto, Febri
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-iss2/625

Abstract

This study aims to determine the effect of the Creative Problem-Solving (CPS) learning model on the creative thinking skills of eighth-grade students at SMP Negeri 29 Padang. The research employed a quasi-experimental design with a nonequivalent control group. The study was conducted at SMP Negeri 29 Padang, West Sumatra. The sample was selected using purposive sampling, consisting of 34 students from class VIII-9 as the experimental group and 34 students from class VIII-6 as the control group. The instrument used was a test in the form of essay questions. The results showed that the hypothesis was accepted, as the significance value obtained was less than 0.05. These findings suggest that the implementation of the Creative Problem-Solving learning model is an effective strategy for enhancing students’ creative thinking skills. Therefore, it is recommended that teachers integrate the CPS model into classroom instruction to encourage students to be more active, innovative, and capable of solving problems creatively.
Pengaruh Model Problem Based Learning terhadap Kemampuan Berpikir Kritis Peserta Didik Kelas VIII di SMPN 10 Padang Amriani, Mutiara; Lestari, Tuti; Putri, Rahmah Evita
Jurnal Pendidikan Tambusai Vol. 9 No. 3 (2025): Desember
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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

Abstract

Latar belakang penelitian ini adalah rendahnya kemampuan berpikir kritis peserta didik. Salah satu solusi yang dapat dilakukan untuk meningkatkan kemampuan berpikir kritis adalah dengan menggunakan model PBL. Penelitian ini bertujuan untuk mengetahui pengaruh model PBL terhadap kemampuan berpikir kritis peserta didik pada materi sistem pencernaan dan sistem peredaran darah manusia di SMPN 10 Padang. Jenis penelitian yang digunakan adalah quasi experiment. Desain penelitian yang digunakan adalah Nonequivalent Control Group Design. Populasi dalam penelitian ini adalah peserta didik kelas VIII. Sampel dalam penelitian ini adalah kelas eksperimen dan kelas kontrol yang diambil melalui teknik purposive sampling. Data diperoleh dari hasil pemberian soal pretest-posttest, kemudian dianalisis melalui uji statistik deskriptif dan inferensial dengan menggunakan Microsoft Excel. Berdasarkan hasil analisis pada uji hipotesis menunjukkan uji perbedaan rata-rata posttest thitung > ttabel yaitu 3,722 lebih besar dari 1,999 sehingga dapat dikatakan Ho ditolak dan Ha diterima. Oleh karena itu dapat disimpulkan bahwa model PBL memberikan pengaruh signifikan terhadap kemampuan berpikir kritis peserta didik kelas VIII di SMPN 10 Padang.
Implementation of SSI-Based PBL Model to Develop Students' Critical Thinking Skills in Science Learning Febrianty, Riana; Az Zahra, Firda; Lestari, Tuti; 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-iss2/645

Abstract

Critical thinking is one of the most essential skills to be developed in 21st-century education. However, many classroom activities still rely on conventional methods that fail to actively engage students. This study aimed to investigate the effect of integrating the Problem-Based Learning (PBL) model with Socio-Scientific Issues (SSI) on junior high school students’ critical thinking skills in the topics of ecology and biodiversity. A quasi-experimental method with a non-equivalent control group design was employed. The research subjects consisted of two eighth-grade classes at SMP Negeri 35 Padang: one class implemented the PBL-SSI model as the experimental group, while the other used conventional learning as the control group. Data were collected through pre-tests and post-tests and analyzed using the t-test. The results showed that before the intervention, students in both groups had comparable levels of critical thinking skills. However, after the intervention, the experimental group demonstrated a significant improvement (tcount = 7.234 > ttable = 2.005). Improvements were evident across six indicators of critical thinking, including information analysis, drawing conclusions, and evaluation. These findings indicate that the PBL-SSI model effectively enhances students’ critical thinking skills through meaningful, contextual, and applicable learning experiences. By incorporating real-life issues, this model encourages active student participation in discussion, problem-solving, and decision-making, thereby making the learning process more engaging and meaningful.
Pengaruh Penerapan Model Pembelajaran Read, Answer, Discuss, Explain and Create (RADEC) Terhadap Literasi Sains Peserta Didik Kelas VIII Idrus, Nur Istiqomah A.; Lestari, Tuti; Azzahra, Firda; Oktavia, Rani
Indo-MathEdu Intellectuals Journal Vol. 6 No. 6 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i6.4310

Abstract

The results of the Programme for International Student Assessment (PISA) show that the science literacy of students in Indonesia is still below the international average. A similar condition is also seen in the results of the Computer-Based National Assessment (ANBK) for eighth-grade students, which shows that science literacy skills have not been measured comprehensively. This study aims to determine the effect of the Read, Answer, Discuss, Explain, and Create (RADEC) learning model on the science literacy competence of eighth-grade students. This study is a quantitative study using a quasi-experimental method with a nonequivalent control group design. The research sample was determined using purposive sampling, involving one experimental class and one control class. The research instrument consisted of a 22-item multiple-choice science literacy test. Both groups were given pre-tests and post-tests to measure improvements in science literacy competence. The data were analyzed descriptively and quantitatively, with the results showing that Ha was accepted and H₀ was rejected. The t-test value showed that tcount 3.47 ≥ ttable 2.00, which was reinforced by the N-gain test results. These findings indicate a significant difference between the two groups, so it can be concluded that the application of the RADEC model has a positive effect on improving students' science literacy competency.
Pengaruh Penerapan Model Pembelajaran Inkuiri Terbimbing Berbantuan Flash Card Untuk Meningkatkan Kompetensi Belajar Siswa Pada Materi Zat Dan Perubahannya Alisa Putri, Rahmi; Prima Sari, Monica; Yanto, Febri; Lestari, Tuti
Jurnal Pendidikan Tambusai Vol. 8 No. 3 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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

Abstract

Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh penerapan model pembelajaran inkuri terbimbing berbantuan flash card untuk meningkatkan kompetensi belajar peserta didik pada materi zat dan perubahannya. Jenis penelitian yang digunakan dalam penelitian ini adalah quasi eksperimen dengan desain pretest posttest non-equivalent control group design. Penelitian ini terdiri dari dua kelas sampel yaitu kelas eksperimen dan kelas kontrol dengan jumlah 62 peserta didik yang dipilih dengan teknik purposive sampling. Kelas eksperimen diberikan perlakuan menggunakan model pembelajaran inkuiri terbimbing berbantuan flash card sedangkan pada kelas kontrol menggunakan model pembelajaran konvensional. Berdasarkan hasil penelitian yang dilakukan, kelas eksperimen memiliki rata-rata N-Gain 0,71 dengan kategori tinggi dan kelas kontrol dengan rata-rata N-Gain 0,52 dengan kategori sedang. Berdasarkan uji hipotesis menggunakan uji-t didapatkan nilai t-hitung (4,47) dan t-tabel (2,04). Berdasarkan hal tersebut, disimpulkan bahwa penerapan model pembelajaran inkuri terbimbing berbantuan flash card memberikan pengaruh yang lebih baik dibandingkan model pembelajaran konvensional terhadap kompetensi belajar peserta didik pada materi zat dan perubahannya.
Infusing Vibrancy into Science Learning through Weismann: An Educational Game for Learning Plants and Animals’ Reproduction Systems Annisa, Nurul; Lestari, Tuti
SEAQIS Journal of Science Education Vol. 4 No. 02 (2024): SEAQIS Journal of Science Education
Publisher : SEAMEO QITEP in Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58249/sjse.v4i02.140

Abstract

This research endeavours to develop an educational game, Weismann, designed to enhance the engagement and effectiveness of teaching and learning about plants and animals’ reproduction systems. Named after August Friedrich Leopold Weismann, the pioneering scientist behind the germplasm theory, the game aims to infuse vibrancy into the learning experience. Adopting a Research and Development (R&D) framework, the study employs sourced data from multiple channels, including expert validation assessment scales as well as science teachers and their students’ feedback on their practical experiences as users. The findings reveal Weismann to be highly valid, scoring 91.2, and remarkably practical, with teachers and students rating it at 95.9 and 83.9, respectively. These results affirm the game’s efficacy as a valuable tool for science education, offering a dynamic and effective approach to learning.
Co-Authors Afdhal Muttaqin Afriani, Nola Agus Irianto Alandita, Faizah Alfatini, Yumna Alisa Putri, Rahmi Amriani, Mutiara Andriziaswari, Ghina Reysa Arief Muttaqiin Armiati As-Syifa, Nisa Nur Az zahra, Firda Azeli, Jihan Azhar, Aulia Azira, Nur Azza Nuzullah Putri Azzahra, Firda Azzhara, Firda Baiq Dina Erika Wardiningtias Barthana, Diannisa Christiani Tumilisar, Christiani Citra Manela Dessi Susanti DWI CAHYANI, INTAN Eva Monalisa Vebri Kusuma Eva Monalisa Vebry Kusuma Evita Putri, Rahmah Fadila, Aulianur Farcham Mulloh Fatma wati Fatmawati, Fatmawati Fatmawati, Junita Febri Yanto, Febri Febrianty, Riana Fiqi Diyona, Fiqi Fitri, Nurmiati Gunawan Santoso Hanisti, Fidhia Hendriyani, Riri Heru Kurniawan Idrus, Nur Istiqomah A. Khairil Arif Khairun Nisa khairunnisa, kania Kurnia, Irma L. V, Yuhendri LV, Yuhendri Mailiyawati, Ghina Monica Prima Sari muloh, farcham Nazwa Syahlilla Sudirman Nebila, Tiara Ningtyas, Ratu Dwi NURUL ANNISA Octaviani, Feni Oktafrida, Leni Oktavia, Rani Pransiska, Liya Prima Sari, Monica Primantiko, Retno Puteri, Dini Eka Putri, Biomechy Oktomalio Putri, Rahmah Evita Rahmadiyani, Rahmadiyani Rika Susanti Rini Rustini Rizkie, Ricky Rose Rahmidani Safitri, Violetta Sembiring, Dea Laurenta Br Siti Asiyah Skunda Diliarosta Solehun Stefvannof, Diego Syofyan, Rita Tato Saputro Wahyuni, Setio Putri Ayu Sri Y., Fitri Amanda Solta Yuliani Yuliani Yurnetti, Yurnetti Zahra, Firda Az Zulhanif, Halimatun Saqdiah