Abstract: Researches are interested in developing if it is associated with how to solve problems in the learning process, thinking is a cognitive process in the process involving some knowledge manipulation such as connecting the understanding with one another in the cognitive system directed is to find or produce solutions in solving a problem in the learning process. But the facts in the field of students tend to be interested in interacting digitally rather than interacting directly with their surroundings. This study aims to determine the effect of Problem based learning and cooperative skills on the critical thinking skills of fourth grade students at MI AL-AZHAR Menganti Gresik