You are strongly encouraged to attend every class session. If you are absent without prior permission, then it is your responsibility to make up for your absence. I will not entertain ``I was not in class'' as an excuse for missing deadlines or not adhering to announcements made in class.
While office hours have been set aside, I tend to have an open-door policy and welcome all questions as long as I am in my office, and not attending to another student or colleague. Please respect this policy.