The paper will discuss the factors that generate continuity in learning. This research examines a music lesson based on “constructive activity” in a special needs junior high school class in which a student impulsively plays a drum. The method employed to analyze the lesson has two distinctive characteristics : 1) It uses a hermeneutic approach to qualitatively analyze various data of the children' s learning process (a “discover-and-pursue” model); and 2) It analyzes an individual case in a special needs class. Through this study, one can acquire beneficial knowledge for universal design for learning.
  In conclusion, continuity in learning from a case of impulsive playing is generated by the following factors : 1) other students, who watch and imitate ; 2) the resulting dialogue between a teacher and students.