In this study, “CLIL Taiiku” was practiced during mat exercises in physical education classes for the junior high school third-grade students. The aim of this study was to verify the achievements and issues of the practice. This practice applied “Light CLIL” and “Partial CLIL,” which included CLIL-like activities in the first half of the unit and part of the classes. As a result, it was clarified that continuous “CLIL Taiiku” affects the achievements in language and the cognitive activities improve with the “CLIL Taiiku.”