THE EFFECT OF GUIDED INQUIRY LEARNING MODEL TO STUDENT'S LEARNING OUTCOMES ON SOUND WAVE TOPIC IN CLASS XI SMA N 1 TEBING TINGGI A.Y 2017/2018

The purpose of this research was to know the student’s learning outcomes using Guided Inquiry Learning Model in Sound Waves Topic in class XI SMA N 1 Tebing Tinggi. The type of this research is quasi-experimental which using pre-test and post-test model. The subject of this research were students of class XI IPA 3 that consists of 35 students as experiment class and XI IPA 4 that consist of 35 students as control class. The object in this research is student’s learning outcomes. Based on the data that got the average score of pretest in experimental class is 36.51 and the average score of pretest in control class is 35.78, in normality test of experimental class of pretest that get Lcount < Ltable (0.0902< 0.149), whereas in control class Lcount < Ltable (0.1239 < 0.149) , so that both of classes are normal distributed. In homogeny test of pretest of both samples there is Fcount < Ftable (1.028< 1.66) then both of data pretest are homogeneous samples. After giving treatment in both samples, experimental class is taught by inquiry training learning model and control class is taught by conventional learning that get the result of average score in experimental class is 70 and average score in control class is 62. The result of one party t-test of post-test that get tcount > ttable that is 2.657 > 1.997, thus there is the significant effect of guided inquiry learning model on students learning outcomes.