This research is motivated by the low learning outcomes of students in tax administration subjects on Income Tax Article 21 in class XI Financial and Institutional Accounting (AKL) 5 in the academic year 2017/2018 as indicated by the results of documentation of learning outcomes of 37% or more than 12 people have not yet received a score above the Minimum completeness Criteria (KKM) that has been determined, namely 75. This is because the teacher has not implemented learning according to the syntax of the Student Teams Achievement Division (STAD) type of cooperative learning model at the stage of forming heterogeneous groups and giving individual quizzes. Based on the background of the problem, the researcher wants to conduct research by applying the cooperative learning model type Student Teams Achievement Division (STAD) in tax administration subjects according to its syntax.
This research uses classroom action research methods. The data obtained comes from student data, namely, questionnaires and learning outcomes. The technique used to analyze the data uses learning implementation analysis techniques, analysis of student learning outcomes, and analysis of student responses. The theory used is the theory of learning, learning models, and STAD type cooperative learning models.
Based on the data analysis conducted, it was concluded that the learning outcomes of students by applying the STAD type cooperative learning model experienced a significant increase in value where almost 90% of students got grades above the KKM. In this learning, the teacher has implemented the same as syntax. Then here, the teacher becomes less explaining the material but is replaced by students where they try to find information through discussion activities. This makes the teacher only respond and add material if it is felt the students do not understand it. By applying the STAD learning model, students are more active in learning and no longer depend on the teacher alone. Here, students can think critically to solve problems. So that learning objectives can be achieved.
Keyword: Education, Studying, Learning, Student Teams Achievement Division, Tax Administration