For each lab missed you will lose one letter grade. Be sure to talk with your instructor about arranging for the make-up of a missed lab. To pass the class you must also turn in an Observing Project. 

No more than ONE lab can be completed during each lab period, and labs completed outside of the classroom will NOT be accepted. You are urged to contact the Instructor in advance if you anticipate missing a lab section. Contact the Instructor also if you need to arrange making up a lab outside of a designated make-up lab period.

It is YOUR responsibility to make sure that all your labs are completed.