In this ESL lesson plan for teens and adults, students watch a video on a stand-up comedy performance about the difference between men's brains and women's brains. It includes discussion and conversation activities about gender differences, stand-up comedy, and how to use the verb 'tend'. Students learn some important vocabulary terms related to this topic and do an activity using the important vocabulary terms from the video. For grammar, students do exercises on the first conditional. There is also a quiz & review activity.