This paper reports our classes conducted with MANGA-case for business learning. As a visiting faculty of State University in US, where "learner-centered"way is required rather than "teacher-centered", the author designed courses including MANGA-case discussions. The author conducted three courses in Department of Information Systems, including "Information Resource Management" for undergraduate students. Their backgrounds are various. MANGA, as drawings played a role to share common understandings in the classroom rather than written description.