In this ESL lesson plan for adults and teens, students watch a video and do a listening exercise about two mushroom hunting fanatics. It includes discussion questions and conversation activities about mushrooms and mushroom hunting. Students also learn some important vocabulary terms and phrases from the video. There is also an activity using prefixes. The grammar exercise features the difference between 'there are...' vs 'there is...' and 'it is...'. It includes a quiz and review with a bonus activity.