In the field of ball games in the course of study, since the viewpoint of learning group skills was included, we focused on the types of ball games and developed lessons using low-level exercises and low-level teaching materials. In the ball game net type for first year high school students, activities were recorded on video based on a unit plan using low-level exercises and low-level teaching materials. When motor skills were assessed based on rubric assessment, changes in collective skill were observed. From the descriptions on the learning cards, it was observed that even the learners who were not good at exercise accepted the learning contents positively. (Total number of pages: 1 page. Responsible for editing the entire volume. Co-authors: Masateru Niito, Taiki Nagai)
