This project aims to seek educational methods that make use of short-term international exchanges as learning opportunities. We conducted exchange activities for 2 weeks with students who attended a beginning Japanese conversation class in Korea and students of a Japanese teacher training course in Japan. We adopted team-teaching as a teaching method and conducted collaborative activities in the Korean-Japanese mixed group in the class. After these activities, we conducted a questionnaire survey on how Japanese learners evaluated these activities and examined the results and improvement points obtained from these activities. In the questionnaire after these activities, the evaluation of these activities by Japanese learners was high. From the comments we found that the learning effects are increased motivation for learning, improvement of Japanese speaking ability, and increased interest in culture by having opportunities to speak directly with Japanese students. On the other hand, there were opinions that these activities were difficult for beginning learners, that the time was short, and that they also wanted to communicate outside of class. From the comments on the class method, there were good results such as helping the students understand the activities, peace of mind for class participation and fun of using Japanese.