Chemistry and Biology courses all have TWO instructors

One is Primary. What does the other teacher do?

Thanks!

They split the class, so the first professor teaches from August to mid October, and the second teaches from mid October to December. They both write the final.

Thanks @fdgjfg as always!

@fdgjfg : wait wait, did they finally destandardize general chemistry or something? If it is still standardized it will not matter to @TimeUpJunior who writes the final or what section he takes really.

Gen chem is still standardized I believe, so all the tests/final will be same regardless of what professor you take.