Welcome to Math 21b! There is a

**mandatory introductory course meeting on Wednesday, August 31 at 8:00 am in Science Center A**.Math 21b is taught entirely in sections; to join the course, you must

**section by noon on Wednesday, August 31**. Instructions for sectioning can be found here. (The sectioning program will become available on Monday, August 29.)If you're not sure whether Math 21b is the right course for you, we strongly encourage you to speak with a math placement advisor.