This document discusses Massive Open Online Courses (MOOCs). It provides definitions of key terms like MOOC and explains the history and types of MOOCs. The types discussed are cMOOCs (connectivist), sMOOCs (standard), and xMOOCs. Benefits of teachers taking MOOCs are outlined, including increasing specific knowledge, satisfying personal interests, observing other teachers, and potential for informal collaboration. MOOCs can also aid professional development and supplement classroom learning. Additional benefits include improving digital skills, exploring online learning models, and expanding international professional networks.