In this ESL lesson plan for adults and teens, students watch a short instructional video about wearing a face mask. It includes discussion questions, conversation, and other speaking activities about face masks and COVID-19. Students also learn some important vocabulary terms and phrases from the video. The post-viewing section includes sections on prepositions and a grammar exercise on the usage of adverbs ending in '-ily'. There are additional speaking tasks included, as well as a quiz and review section with a bonus activity.