With the increasing abundance of knowledge in the internet era, out-of-class learning plays a more significant role in students' learning process than before. However, this part of learning is still largely being neglected and thus unstructured in the basic curriculum of architectural education. This paper examined two widely applied teaching modes—the "studio mode" and the "lecture-aided mode"—from the perspective of connectivism theory, pointing out their deficiency in incorporating out-of-class learning into teaching process. This paper introduced the "micro-units" mode as a supplement to the previous two modes and incorporated part of the out-of-class learning content into current teaching system. Implementation principles of "micro-units" mode and its further potentials were also discussed.