Effectivenes, Multimedia, Geometry, Learning, Media
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Learning by using multimedia can make students more attention when teachers teaching, so student’s learning outcomes can be better. The purpose of this study is to determine the effectiveness of the use of computer-based multimedia learning in teaching geometry at junior high school. This study was conducted to provide innovation on teacher models, strategies and methods to achieve the objectives and learning outcomes. The design of this study is of pre-experimental research with one type of treatment or One Group Pretest-Posttest.
The results by using t-test was t-count as 29.552, while the value of t-table as 0.67627. Because t-count ≥ t-table the conclusion is “there is a significant difference between pretest and posttest value”. The average value of pretest was 71.7536 while the posttest was 76.4565. Based on the result of t-test and the mean value of learning result, it can be concluded the result of student learning after being taught by using computer-based learning media on material geometry better than before using computer-based learning media