I think it's brainstorming. I did the warm-up at the start of the class, Ms. Lamoreaux asked us a few questions. Part of these questions are about grammar and the other parts are writing topics. We will have 5 minutes to complete the grammar questions or use the topic for free writing. I think the buzzer warm-up is like a game. It can not only help my brain keep working, but also wake me up because this class starts early. I always felt like I was sleeping. The buzzer warm-up can also help me review my knowledge. I can find the types of knowledge I have forgotten. The buzzer warm-up is very interesting and it is also one of the most important skills I learned in this setting.