Improved problem-solving skills of the student through cooperative problem-solving models related to fluid dynamic topic

Problem-solving skills (PSS) were needed to prepare for the working world. Based on a preliminary study at one of Senior High School in Banjaran West Java, the average score of student Problem-Solving Skills (PSS) was low. This study aims to determine the improvement of PSS of student after applied Cooperative Problem Solving (CPS) models on dynamic fluid. The research method used was a pre-experiment with one group pretest-posttest design. The subjects of this study were students of class XI Science 2 selected by purposive sampling technique amounted to 30 people. The student's PSS was measured through an essay test and a supporting instrument in the form of student worksheets. The results showed that there was an increase of PSS of students with <g> of 0.68 medium categories. Based on the paired sample t-test where t_count (12.24) > t_table (2.05) indicates that there was the influence of CPS models to improve PSS of students. The average results of the student worksheet analysis indicate that there was an increase student's PSS at each meeting and the average value was categorized well. Thus, the CPS models can be used as an alternative learning model that can improve PSS of students on dynamic fluid.