Improving Critical Thinking Skills through Discovery Learning: Case Study at SMP Negeri 2 Central Kupang
Abstract
Critical thinking skills, especially in science subjects, are insufficient because teachers only provide direct knowledge to students without giving students the opportunity to actively participate in learning. The aim of this research is to determine the influence of the Discovery Learning model towards the critical thinking skills of grade VII students at SMP Negeri 2 Kupang Tengah. This type of quantitative research uses a quasi experimental method. The research results show that the score of critical thinking skills of the students in experimental classes with an average posttest score of 80.46 higher than the pretest which is 50.04. Meanwhile, in the control class, the average pretest score was 45.21 and the average posttest score was 67.14. The results of the anacova test using the one-way anacova statistical analysis technique (one way-anacova) with the help of SPSS Version 23 obtained a probability value (sig) of 0.000 <from the set significant value of 0.05. Thus the null hypothesis (H 0 ) which states that there is no influence of the Discovery Learning model on students' critical thinking skills is rejected and the alternative hypothesis (Ha) which states that there is an influence of the Discovery Learning model on students' critical thinking skills is accepted. The conclusion of this research is that the Discovery Learning model influences the critical thinking skills of grade VII students at UPTD SMP Negeri 2 Kupang.
References
Ahmatika, D. (2023). Improving Students' Critical Thinking Skills Through the Inquiry/Discovery Approach. Euclid's Journal, 3 (1), 377–387.
Fakhriyah, F. (2014). The Application of Problem-Based Learning in Developing Students' Critical Thinking Skills. Indonesian Journal of Science Education, 3 (1), 95–101. http://journal.unnes.ac.id/nju/index.php/jpii
Istidah, A., Suherman, U., & Holik, A. (2022). Improving Science Learning Outcomes on the Topic of Properties of Light Through Discovery Learning Method. Indonesian Education Journal: Theory, Research and Innovation, 2 (1), 32–40. https://doi.org/10.59818/jpi.v2i1.187
Koy, H.Y., & Kofemnuke, O. (2024). The implementation of the Discovery Learning model to enhance students' learning motivation in Grade XI Science 2 at SMA Negeri 1 Takari. JBIOEDRA: Journal of Biology Education, 2 (1), 313–318. https://journal.unwira.ac.id/index.php/JBIOEDRA
Kusumawati, IT, Soebagyo, J., & Nuriadin, I. (2022). Literature Review on Critical Thinking Skills with the Application of PBL Model in Constructivist Theory Approach. Mathematic Education Journal) MathEdu, 5 (1). http://journal.ipts.ac.id/index.php/
Ningsyih, S., Junaidi, E., Wahidah, S., & Idrus, A. (2016). The Influence of Guided Inquiry-Based Laboratory Practices on Students' Critical Thinking Skills and Learning Outcomes in Chemistry. J. Pijar MIPA , XI ( 1), 55–59.
Oktariani, & Ekadiansyah, E. (2020). The Role of Literacy in the Development of Critical Thinking Ability. Journal of Educational, Psychological And Health Research, 1 (1), 23–33. www.jurnalp3k.com/index.php/J-P3K/index
Putri, YE, & Prihatnani, E. (2020). Comparison of PBL and DL on Conceptual Understanding of Grade XI Students Considering Motivation. Scholar's Journal: Journal of Mathematics Education, 04 (01), 40–52.
Ramdani, A., Jufri, AW, Jamaluddin, J., & Setiadi, D. (2020). Students' Critical Thinking Skills and Mastery of Basic Science Concepts. Journal of Science Education Research, 6 (1), 119. https://doi.org/10.29303/jppipa.v6i1.388
Reski, A., Taiyeb, M., & Asse. (2023). Implementation of the Discovery Learning Model to Enhance Science Learning Achievement of Students in Grade VIII at SMP Negeri Satap 6 Holiday. ©JP-3: Journal of Learning Thought and Development, 5 (2), 473–478.
Riku, M. (2021). Improving Learning Outcomes of Grade X Science Students on Molecular Shapes Using the Discovery Learning Model with PhET Simulations. SECONDARY : Journal of Innovation in Secondary Education, 1 (2), 79–87.
Safitri, WCD, & Mediatati, N. (2021). Application of the Discovery Learning Model in Science Education to Enhance Critical Thinking Skills and Learning Outcomes of Elementary School Students. Basicedu Journal, 5 (3), 1321–1328. https://doi.org/10.31004/basicedu.v5i3.925
Saputri, MA (2020). Implementation of Problem-Based Learning Model to Improve Critical Thinking Skills of Grade V Elementary School Students. JPdK: Journal of Education and Counseling, 2 (1), 92–98.
Satwika, YW, Laksmiwati, H., & Khoirunnisa, RN (2018). Application of the Problem-Based Learning Model to Enhance Students' Critical Thinking Skills. Journal of Education (Theory And Practice), 3 (1), 7. https://doi.org/10.26740/jp.v3n1.p7-12
Setyawan, RA, & Kristanti, HS (2021). Critical Thinking Skills in Science Education Through the Discovery Learning Model for Elementary School Students. Basicedu Journal, 5 (2), 1076–1082. https://doi.org/10.31004/basicedu.v5i2.877
Siak, M.E., Nule, M., Lelan, V., Baok, T.D., & Seran, S.L. (2023). Increasing Students' Learning Motivation in Biology Lessons through the Application of the Discovery Learning Model in Grade XII Science 1 At SMA Negeri 1 Kupang Tengah. JBIOEDRA: Journal of Biology Education, 1 (2), 112–119. https://journal.unwira.ac.id/index.php/JBIOEDRA
Syafitri, E., Armanto, D., & Rahmadani, E. (2021). Epistemology of Critical Thinking Skills. Journal of Science and Social Research, IV (3), 320–325. http://jurnal.goretanpena.com/index.php/JSSR
Uskono, MM, & Natonis, NAHHS (2024). Application of the Discovery Learning Model to Enhance Students' Understanding of Plant Organ Concepts in Grade XI Science at SMA Negeri 2 Fatuleu Barat. JBIOEDRA: Journal of Biology Education, 2 (1), 308–312. https://journal.unwira.ac.id/index.php/JBIOEDRA
Uslan, Abdullah, N., Imami, MKW, & Aiman, U. (2024). The Effectiveness of the Local Knowledge-Based Module (LKBM) To Improve Students' Scientific Literacy and Thinking Skills. Indonesian Journal of Science Education , 13 (1), 147–161. https://doi.org/10.15294/jpii.v13i1.47561
Wibowo, AM, Utaya, S., Wahjoedi, W., Zubaidah, S., Amin, S., & Prasad, RR (2024). Critical Thinking And Collaboration Skills On Environmental Awareness In Project-Based Science Learning. Indonesian Journal of Science Education, 13 (1), 103–115. https://doi.org/10.15294/jpii.v13i1.48561
Yulianti, Y., Lestari, H., Rahmawati, I., Agama, I., & Sahid, I. (2022). The application of the RADEC learning model to enhance students' critical thinking skills. Pendas Cakrawala Journal, 8 (1), 47–56. https://doi.org/10.31949/jcp.v6i1.3350
Zubaidah, S. (2014). Critical Thinking: High-Level Thinking Skills Developed Through Science Education. 2014 National Science Seminar , 1–15.
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