This document discusses using MOOCs to promote fair education and improve teaching quality. It provides details on a principles of electric circuits MOOC developed by Tsinghua University, including enrollment numbers from multiple countries/regions. The MOOC was found to improve on-campus teaching quality by incorporating pre-class study, in-class discussion, and post-class summary. Several patterns for integrating MOOCs into on-campus courses are described, including outcomes like enhanced hands-on ability and improved exam scores. The MOOC/SPOC model has now been applied at multiple universities in China.