Hi Caroline:
The easy to manage part can be easy, if some initial work is` put into it. If its electronic, you may need help from your IT guys to set something up. Many publishers will also provide grading software if you use their products.
Fairness is probably best addressed using a grading rubric. This tool provides a pretermined decsion about how a grade will be assigned that both teacher and student use from the first class until completion.
Regards, Barry
