Eddy,
I have found good students who do all assigned work feel resentment towards the student (and teacher) who is given extra credit when the good students had to work hard for their grades. I try to be fair by not giving extra credit to anyone, my students know that and they know not to ask. I just have had too many bad expeiences with extra credit so I choose not to give it. However, each instructor and institution has to decide what works best for their students.
Barry Westling
