The Effect of Inquiry Model on Students Higher Order Thinking Skills in Ecosystem

This study aimed to find out the effect of Inquiry learning model on higher order thinking skills of students at ecosystem topic in grade 5 Elementary School (SD) Medan. The research applies experimental method with 2 classes are chosen by using random sampling technique. The class 5A is taught by using Guided Inquiry model and the class 5B is taught by using Free Inquiry model. The research instruments are learning outcome tests whose validity, reliability, level of difficulty, and the discrimination index have been tested. The data are analyzed by using Covariate Analysis (Anacova). The results show that higher order thinking skills of experimental class students learning using guided inquiry model are higher than the control class students who are learning using free inquiry model.