When you register for CSE247, you make a committment to put forth your best effort. One obvious expectation is that you will attend class, because the homework and lab exercises follow directly from the material covered in class.
Although a textbook and on-line resources are provided, they are not an adequate substitute for attending class.
Your participation score is based on responding to WUTexter quizzes that are posed during lecture. If you are absent, you cannot participate.