TOEFL Listen to an Announcement Practice 002

Instructions
Listen to the announcement. Then answer the questions.
This course narration uses an AI-generated voice.
Professor: Before we start today, I want to remind everyone that the annual student club fair is happening this Wednesday on the main quad from eleven to two. If you're looking to get more involved outside of class, it's a great chance to talk to representatives from over eighty student organizations. A few of you have asked about extra credit - I'll be offering two points on your next quiz if you attend and get a signature from at least three different clubs on the handout by the door. The handout will also be posted on the course page if you can't make it to my office to pick one up.
1. What is the main purpose of the announcement?
2. According to the professor, how can students earn extra credit?