Does the school have any tutoring resources, or does the instructor make himself available outside of class time (usually this is required of college teachers for at least an hour a week per course)? You may find he's able to present info in a way that suits you better one-on-one than to a group, or may be able to steer you in the direction of someone who can help you. IIRC, you're starting out in college, so forgive me if this "advice" is redundant - at this level, in general, it's not necessarily expected that you do everything without help, but it will be assumed that if you don't ask for help, you don't need it or don't care.