<![CDATA[The problem in this study is the low critical thinking skills of students in learning mathematics. The purpose of this study was to determine the effect of applying a realistic mathematical approach to the critical thinking skills of Class X Even Semester students at SMK Negeri 7 Bandar Lampung in the 2022/2023 academic year. This study used an experimental method with the population in this study, namely all students in class X even semester of SMK Negeri 7 Bandar Lampung, while two classes were taken, namely class X KK 1 which used a realistic mathematics approach, and class X KK 2 which used a conventional approach. Samples were taken using the Cluster Random Sampling technique. To find out students' critical thinking skills, a test was carried out in the form of an essay of five questions which had previously been tested for validity and reliability. Hypothesis testing in this study uses the t-hit formula. From the results of testing the hypothesis using the t-hit statistical formula, the value of t = 1,88 is obtained. From the t distribution table at a significant level of 5% it is known that t = 1,67 then which means that the average critical thinking ability of students who use a realistic mathematics approach is higher than the average critical thinking ability of students who use a conventional approach.]]>
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