Jaclyn, I look at different grading systems with the idea of "does this measure the degree (or absence of) learning that's occurred. There's always different ways to approach grading, but students who have learned material, have a good grasp and understanding will demonstrate their learning using whatever system is in place. That's why it's important to outline how a student will be graded at the outset, then stick to the plan. Students don't like mid-course changes very well. Barry Westling