Who to Contact if ...

The class has several persons connected with it. For the fastest resolution of most problems, here is a list of problems and who to contact first about them.
If Contact
you have an excused absence from lecture or lab Dr. Keen with your paper documentation
you find a mistake on your grade records your TA
you know you are going to miss a testDr. Keen
you missed a test unexpectedlyDr. Keen
you have a question about how something was gradedyour TA