Covid-19 Pandemic: Application of Cooperative Learning Model Type Rotating Trio Exchange (RTE) to Increase Mathematic Connection Ability and Self Efficacy of Junior High School Students

Abstract

^{The background of this research was carried out during the COVID-19 pandemic, starting with the understanding that topics in mathematics do not stand alone, but are interrelated with each other so that the importance of mathematical connection skills to be mastered by all students to make it easier for students to learn mathematics. By mastering mathematical connections, students will know that ideas in mathematics are interrelated, mathematical ideas are also applied in other subjects and mathematics is also used in everyday life. The aims of this study are: (1) To determine the improvement of students' mathematical connection skills who received the RTE learning model with students who received ordinary learning; (2) To determine the self-efficacy of students who received the RTE learning model with students who received ordinary learning; (3) To find out how much the value of the effectiveness of the RTE learning model in mathematical connection abilities. (4) To determine the effectiveness of using the learning management system (LMS) at schoolvirtual.com. The method used in this study is a quasi-experimental method with a pretest and posttest group design conducted online. The population in this study were students of class VIII SMP in Bandung. While the object in this study is the ability of mathematical connections and self-efficacy. The instruments used in this study were a mathematical connection ability test and a self-efficacy scale questionnaire. The results of this study indicate that: (1) Improved mathematical connection skills of students who received the RTE cooperative learning model were better than students who received the ordinary learning model; (2) The self-efficacy of students who received RTE learning was better than the selfefficacy of students who received ordinary learning; (3) The effectiveness of the RTE learning model for students' mathematical connection skills is 1.82 which is included in the large category. (4) The effectiveness of using the learning management system (LMS) of Sekolahvirtual.com is in the very good category.}