English language development (a.k.a. English as a Second Language; English as a New Language, "Designated ELD," Focused Language Study) takes a variety of forms in present-day schools. In many schools, teachers teach ELD for a set amount of time (e.g., 30 minutes) a day. Other ELD/ESL teachers have multiple classes each day. In many cases, teachers emphasize grammar and vocabulary. However, the grammar and vocabulary route isn't the most effective for lasting and engaging language learning.. Language was created to get things done, to communicate—and this is how students best learn it. This is where this MOOC starts. It focuses on how to design and teach activities that are saturated with communication, and, where needed, strategically develop grammar and vocabulary to support communication.