Indonesia Conference Directory

The glory of a nation is influenced by the quality of its human resources. Human resources depend on the quality of their nations education. Teachers are an important part of developing the quality of education. Reliability of teacher competence contributes positively to the development of quality education. In fact, the results of the Teacher Competency Test (UKG) in Indonesia are still relatively low. The low quality of teachers results in low graduates, especially SMK graduates. In Bandung District unemployment is dominated by SMK graduates. Therefore, professional development of SMK teachers is needed, so that they have adequate competence, including being able to develop learning innovations. Lesson Study is one of the learning innovations that can improve cognitive, didactic, and pedagogical knowledge. Lesson Study can improve the mathematical disposition of teachers and students. This article discusses the description of the lesson study process and the mathematical disposition of students after learning through lesson study with a problem based learning approach.