<![CDATA[This study was motivated by the low level of student engagement in physics classes at SMP Negeri 4 Kairatu, which has resulted in low cognitive abilities among students. Therefore, it is necessary to implement a learning model that encourages students to actively discover concepts through activities such as observing, formulating problems, gathering information, analyzing data, and drawing conclusions. One such learning model is Discovery Learning. This study aims to improve students’ cognitive abilities regarding the topic of vibrations through the application of the Discovery Learning model. The research design used is a pre-experimental study with a one-group pretest-posttest design. The study was conducted with 26 eighth-grade students at SMP Negeri 4 Kairatu. Data collection was conducted using both test and non-test methods. The test instrument consisted of 10 multiple-choice questions and 5 essay questions administered during the pretest and posttest, while the non-test instrument consisted of Student Worksheets (LKPD) used to evaluate cognitive abilities during the learning process. The research results show that on the pre-test, all students (100%) were classified as failing, with an average achievement score of 13.60. After implementing the Discovery Learning model, the students’ average achievement score on the post-test increased to 87.47, classified as good. Analysis of cognitive abilities during the learning process revealed an average score of 82.5, classified as good. Additionally, the N-Gain test results showed an average score of 0.85, which falls into the high category. Thus, it can be concluded that the implementation of the Discovery Learning model is effective in improving students’ cognitive abilities regarding the topic of vibrations in the 8th-grade class at SMP Negeri 4 Kairatu.]]>
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