It all depends on how it is implemented. After all, you could take regular grades and assign points to each grade -- and the two systems would be equivalent. T

It all depends on how it is implemented. After all, you could take regular grades and assign points to each grade -- and the two systems would be equivalent. The big question for me though is exactly as you point out. Engineering projects, for example, are really only valuable if they work. And it's hard to measure the progress in-between non-working and working if you don't observe the team carefully, except of course by "time spent." No matter which system is used for grading, it won't be perfect -- it will cater toward some students and not toward others. Since most students are only exposed to one dominant way, I am all for experiments such as this.