Comparison Using 2 Learning Model (Among Contextual and Numbered Head Cooperative Together NHT) Towards Student Learning Outcome in The High School (Case Study on Senior High School of SMA Negeri 5 Medan)

This study aims to obtain empirical data regarding the comparison among contextual learning models and the Numbered Head Together (NHT) type of cooperative learning model on the 1st grade class of learning outcomes on mushroom topics in the High School (on the SMA Negeri 5 Medan). The type of research was used classroom action research. The population in this study was grade first students of High School State 5 Medan, in a total of 8 classes. Sampling technique was taken using the random sampling method from 2 classes. The first-class experimental class (X1) was taught using a contextual learning model and the other class (X3) uses the NHT learning model. The data in was collected using a test (test of learning outcomes). The validation instrument was tested out in the experimental class, then analyzed with the validation test, reliability test, discrimination power test and level of difficulty test to select questions that were considered good for the posttest. The first experimental class (X1) showed the average value of learning outcomes obtained was 7.2 with a variance of 1.358, while the (X3) class obtained was an average value of 6.2 with a variance of 1.102. Based on the results of the t-test analysis, it was found that there was a comparison of contextual learning models with NHT type cooperative learning models to student learning outcomes in class X mushroom material at High School (SMA Negeri 5 Medan)