The Effect of Contextual Learning on Understanding Three Dimensional Concepts of Class XII Students of SMA Negeri 2 Baubau

The purpose of this study was to determine the effect of contextual learning on the understanding of three dimensional concepts in XII grade students of SMA Negeri 2 Baubau. This type of study was quantitative research. The population in this study were all students of class XII SMA Negeri 2  Baubau which consisted of 11 classes, namely 396 students. The instruments used were tests and questionnaires. Data collection in this study was carried outu using a test consisting of 10 items in the form of an essay for the final test. Samples were taken using a random sampling technique, namely class XII IPA 8 as an experimental class as many as 36 students and class XI IPA II as a control class as many as 36 students at SMA Negeri 2 Baubau. Data collection techniques in research using tests and questionnaires. The technique of collecting data in the study used a questionnaire. The analysis technique used by the researcher was also 2 types of statistical analysis, namely descriptive statistics and inferential statistics.  Before testing the hypothesis, a prerequisite test will be carried out, such as the normality test and the homogeneity test. Based on the results of calculations using the independent samples t-test, the t value was 3.593.  For the t-table value at the significance level of 0.05 (5%) and db = 70, which was 2,000.  Based on this value t-count t-table, the study hypothesis was accepted.  So that, it could be concluded that contextual learning had significant influence on understanding the three dimensional concept of XII grade at SMA Negeri 2 Baubau.