창의적인 교과서를 개발함에 따라 지역, 학교, 교사, 학생 친화적인 교과서가 될 수 있는 가능성이 높다는 믿음 때문이었다.
It was because of the belief that as a creative textbook is developed, it has a high possibility of becoming a region, school, teacher, and student-friendly textbook.