The Capstone Design class, operated in the Project Based Learning format, is a class in which three groups of learners produce assignments such as beginner-level Vietnamese conversation textbook manuscripts, lecture notes, and lecture videos by following the process of ‘assignment (first draft) - peer evaluation - reflection of peer evaluation opinions - revised manuscript - reflection journal.’ In this study, we analyzed the presentations of the first and second groups’ drafts, peer evaluations by fellow groups, revised manuscripts that accepted peer opinions, and reflection journals written by all students during the second and third weeks of the 15-week class. In particular, when comparing the draft and the revised task reflecting peer evaluation, it can be seen that learners themselves recognize the importance of communication and collaboration capabilities that accept peer evaluation opinions along with enhancing the completeness of the task. In addition, through the analysis data of two consecutive weeks, it was recognized that not only the ability to accept peer-reviewed opinions but also to present peer-reviewed opinions is communication and collaboration capabilities, and a respectful and honest attitude is necessary for this.

For the efficient teaching and learning of Vietnamese, the researcher paid attention to Project Based Learning and tried to apply it to the class. The researcher analyzed prior studies of PBL classes, including English and other foreign languages, and applied the theory of PBL to Vietnamese language education subjects, designed PBL classes, and utilized them in classes. In addition, the process in which the learners perform tasks (student presentation, peer-faculty evaluation, evaluation opinion reflection process), the results, and the questionnaire survey on learners were analyzed. As a result, it was found that PBL methods could also be applied in Vietnamese classes. The learners reorganized the learning contents into his or her own knowledge in the relationship between the learner’s own thoughts, experiences, knowledge, and understanding by referring to the instructor’s teaching plan and lecture. In addition, it was possible to achieve more useful and viable knowledge by listening to other people’s opinions and thoughts about their own knowledge, understanding, and interpretation, and through correction and supplementation processes. Also noteworthy is that through the PBL class, the level of knowledge of each student increased rapidly.