Peningkatan Aktivitas dalam Pembelajaran Matematika dengan Menggunakan Metode Inkuiri Kelas V SD

. The Improvement of Learners Activity in Math Learning by Applying Inquiry Method on the Fifth Grade of State Elementary School 01 Nanga Tebidah Sintang. The Purpose of this research is to find the improvement of the learners activity. The method used in this research is descriptive method with survey as the research form, which in the implementation there was collaboration between the researcher and the classroom teacher. The average score of physical activity before the inquiry method used was 37,86%, and it improved to be 51,46% in cycle I, and became 81,72% in cycle II. The average score of mentally activity before the inquiry method used was 26,34%, and it improved to be 51,77% in cycle I, and became 77,18% in cycle II. The average score of emotional activity before the inquiry method used was 33,30%, and it improved to be 74,17% in cycle I, and became 83,72% in cycle II. From this research, the math learning apparently is able to improve the learners activity by using the inquiry method on the fifth grade of state elementary school 01 Nanga Tebidah Sintang