In order to address the issues of abundant learning resources under the Internet plus condition, but college students do not invest enough time in learning out of class, and some teachers and students are still accustomed to one-way teaching, a new combination of teaching and learning elements in and out of class, the PDCA Iterative Improvement Pedagogy, is designed. And educational experiments were conducted in two public elective courses. The investigation indicates that after engaging in collaborative learning both inside and outside the classroom, students not only acquire professional knowledge but also experience comprehensive growth in transferable abilities and non-intellectual factors. This holds universal significance for reforming the traditional classroom teaching system, effectively utilizing online learning resources, increasing student engagement in self-study outside of class, enhancing the learning efficiency of the “research-teaching-study nexus,” considering both individual growth and social skills training, integrating professional education with holistic education, and implementing quality assurance practices into the daily teaching process.