Occasionally this includes a little bit of material that is not in the textbook. You may have a classmate bring your homework to class for you, but be sure that that classmate is reliable. It is still your responsibility to get your homework handed in on time. It is also your responsibility to attend all quizzes and tests. The dates will be posted on the course's web page.
Different teachers have different degrees of receptivity to questions.
I believe that I am receptive to questions, and I urge you to ask questions in class. You'll do us all a favor by bringing that question out in the open. Most of my work on the blackboard is accurate, but occasionally I do make a mistake. If you think that you may have caught a mistake, please ask about it right away, so that I can correct it. I think I'm pretty good about admitting when I've erred.