This study conducted and analyzed interviews with elementary school teachers about their class experiences and difficulties in order to identify the current practices of the ‘Pleasant Life’ curriculum and to suggest improvement plan. The gap between teacher perceptions was significant, but the need for the subject and students interest was high, and teachers were confident and enjoyed the subject. The curriculum and textbooks needed to be supplemented and more systematic links with Nuri curriculum and music/art curriculum in the 3, 4 grades. The standard for class planning was their students, and the national curriculum was used as a large framework for class planning, and textbooks were used as a tool to fill the framework with various activities. Teaching and Learning methods were mainly used for collaborative learning and project learning, and the topic learning teaching process was shown to be effective, and the evaluation was used for the purpose of promoting learning. The difficulties of the ‘Pleasant Life’ curriculum was that the boundary between creative expression and play was ambiguous, different interpretation of achievement standards among each teacher, and the lack of research and training for integrated curriculum. Based on the results of the interview analysis, improvement plans were proposed in terms of education content and teacher training.