<![CDATA[Based on observations regarding student learning outcomes, the values obtained in ecosystem material, the average student learning outcomes are below the Minimum Completeness Criteria (KKM). Researchers use the Learning Cycle model to get good learning outcomes for students in biology lesson concepts on ecosystem material. The teacher's ability to design and implement a model greatly influences the results achieved. This research aims to determine the effect of the learning cycle model on biology learning outcomes in ecosystem material for Class X students at Sonder Christian High School. This research uses an experimental method with a control group research design. The sample in this study consisted of two classes, namely class X Science 1 with 15 students and class X Science 2 with 15 students. The average pret-test score in the control class was 32.85, while the average pret-test score in the experimental class was 42.06. Furthermore, the average post-test score in the control class was 73.2, while the average post-test score in the experimental class was 76.46. Based on the results of hypothesis testing with a significance level of 0.05, the value of tcount (3.752) > ttable (2.13145) was obtained. Based on the results of the research and discussion that have been described, it can be concluded that there is an influence of the use of the Learning cycle learning model on student learning outcomes in ecosystem material in classes X Science 1 and X Science 2 at Sonder Christian High School]]>
