Ive had a grading theory that Ive wanted to see put use, but modern grading systems make it nearly impossible to employ. Some educators place the majority of the overall grade on tests, others choose papers and projects and others lean on daily homework, weekly quizzes and/or attendance. Most educators sort of balance everything out somewhat. In my opinion, any system reflects learning and work for some students while simultaneously working against others whose strengths are not represented well by that particular grading system.
While I was a student at the University of Hawaii/HCC I witnessed a massive dropout rate in my program. I talked to some students who dropped out and nearly every one of them had the same problem: they blew a major test early on and realized that they stood a nearly impossible chance of passing the course no matter how well they did later on.
Heres my grading theory: 60% of the overall grade is based on the area that each student does their best in (tests, papers and projects or daily homework, weekly quizzes and/or and attendance). 30% of the overall grade is based on the next best area for each student. 10% is based on their worst area. One student may be a great test taker, but poor writer, they could earn an A under this system. Another student in the same class could be a great writer or loves projects but always chokes on tests, this student also could earn an A under this system.