classes:  lecturer. teachers do not have a way to solve the problem and still give the assignment filed on the spot as usual.  curriculum. teachers do not have a way to solve the problem and still give the assignment filed on the spot as usual.  facility. teachers do not have a way to solve the problem and still give the assignment filed on the spot as usual.  general. teachers do not have a way to solve the problem and still give the assignment filed on the spot as usual.