In this paper, we've developed a Korean language textbook and used it in pre-intermediate Korean classes at several universities. This paper also mentions the benefits of language classes that combine language and culture. In these case studies of Korean classes, the language skills of the students vary widely, and intermediate classes are often small. Also, most of the students are more motivated to learn about culture than language. Recently, it has been observed that most of the students prefer learning cultural studies over language learning than languages. Therefore, we’ve made a language textbook to learn about Korean culture, and strengthened the selfstudy aspect before and after classes. During the class, many group activities were carried out that were easy to participate in even if the language level was different. As a result, it seems that the comprehension level of both language skills and cultural interests has increased. An increase in active learning ability is also observed in the students’ reflection sheets.