This study is organized from a three-year curriculum development and teaching process of the "Human Behavior and Social Environment" course. It illustrates how the auther constructed the curriculum as a teacher and how certain innovative teaching methods had shaped its implementation. The instructional design features complementary methods composed of teacher-student co-participation, as well as various new teaching practices, e.g. the flipped classroom model, self-learning and multimedia learning so as to promote student's engagement in learning. The author gradually adjusted the curriculum design by consistently collecting student feedback and self-reflection as a teacher. Finally, reflect on the purpose of teaching, the needs of students, and the findings which will benefit for the future improvements of class design, several suggestion was provided.