This research aims to describe: (1) program development on the Student Team Achievement Division (STAD) method in learning Indonesian language at SMA Negeri Karangpandan, (2) implementation of STAD method in learning Indonesian language at SMA Negeri Karangpandan, and (3) evaluation of implementation, success, supporting factors, and inhibiting factors for learning STAD method in learning Indonesian language at SMA Negeri Karangpandan. This research is a qualitative with a case study design. The participants were Indonesian language teachers at SMA Negeri Karangpandan. Data collection techniques were carried out by observation, in-depth interviews, and documentation. Data validation used source and technical triangulations. Data analysis technique was done by summarizing the data, presenting the data, and drawing conclusions. The results indicated that the implementation of STAD method in learning Indonesian language at SMA Negeri Karangpandan include: (1) development of learning programs that have been implemented by Indonesian language teachers, including annual programs, semester programs, weekly programs, module programs, and remedial programs, (2) the implementation of Indonesian language learning is carried out using STAD method on the material of imagination in poetry starting from student grouping, teacher presentations, division of tasks, quizzes, and awarding, and (3) the evaluation of the implementation of learning is measured by the suitability of the teaching and learning activities carried out by the teacher in the classroom with the lesson plan; evaluation of learning success is carried out by means of tests; factor supporting is the teacher be able to take advantage of the facilities; and the cooperation of students in groups, while the inhibiting factor is the attitude of students who are introvert.