The network-based teaching, of which the advantanges have been well recognized, has gained popularity in recent years. In this paper, we present an overview on the newly developed Singals and Systems courseware. Benefiting from its hybrid structure, the courseware facilitates asynchronous self-determination study, synchronous interactive study, and individualized learning. A wide range of topics relating to the structure and functionality of the courseware, including system-navigation, searching, problem di...