In this study, we organized the class scenes and analyzed the teachers’ behavior by using the systematic observation method in physical education pedagogy. In addition, we aimed to obtain suggestions for guaranteeing learning outcomes by examining the characteristics and learning outcomes of the lessons practiced by several teachers with different attributes. The target teachers were four teachers: one skilled teacher and one new teacher who specialize in volleyball, and one skilled teacher and one new teacher who do not specialize in volleyball. In this study, we examined the acquisition of life skills and sport competence as indicators of academic achievement. In addition, the verbal and non-verbal behaviors of the teachers in each class were organized and analyzed to examine the characteristics of teacher behaviors by teachers with different attributes. The results showed that the two volleyball teachers significantly improved their students’ sport competence before and after the class. In the comparison of teachers’ experiences, the skilled teachers’ group showed significantly higher rates in the items of corrective feedback, negative/behavioral feedback, and supplementary activities for learning, and the new teachers’ group showed significantly higher rates in the items of explaining learning methods and patrolling. In the comparison of the teachers’ professional disciplines, the expert teachers’ group showed significantly higher percentages in the items of positive/technical, positive/behavioral feedback, demonstration, and sport participation, while the non-expert teachers’ group showed significantly higher percentages in the items of instruction and patrolling. These results suggest that (1) teacher expertise may influence students’ acquisition of sport competence, (2) teacher experience may be characterized as teacher behavior that promotes students’ behavioral change and consequently influence students’ acquisition of life skills, and (3) the former may be influenced by teacher experience and the latter by teacher involvement in learning and teaching. (3) regarding learning guidance and teaching methods to students, it was shown that learning guidance is characterized by the experience of the teacher, and the teaching method is characterized by the specialty of the teacher, and the new teacher is Pedagogical regarding how to proceed with learning and explanation of teaching contents. It was shown that the need to acquire knowledge is necessary for non-specialized teachers to study and utilize basic skills to the extent that they can accurately demonstrate what they are teaching to students.
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