<![CDATA[The Practical Method of Learning provides students with the opportunity to engage directly by performing tasks themselves, following processes, observing a subject, analyzing, proving, and drawing their own conclusions about an object, condition, or specific process. This study aims to determine the effect of the method on students' learning outcomes in Chemistry at Public High School 1 Tambang. This research is a Quasi-Experimental study. The population consisted of all 80 students in the XI Science stream. The sample involved 60 students, with two classes used: Class XI MIPA 1 as the control class and Class XI MIPA 3 as the experimental class. Data collection techniques included observation, tests, and documentation. Data analysis was conducted using a t-test. Based on the t-test analysis results, it was found that t_calculated (-2.1) < t_table (2.045) at a 5% significance level. According to the paired sample t-test theory, the alternative hypothesis (Ha) is accepted, and the null hypothesis (Ho) is rejected. From the research findings, it can be concluded that there is a significant effect on students' learning outcomes in Chemistry, specifically on the topic of reaction rates, between the experimental class and the control class at SMA Negeri 1 Tambang. The practical method of learning significantly influences students' academic performance. Keywords: Practical Method, Learning Outcomes, Reaction Rates ]]>
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