Loss of all individuality, with everyone working towards a common good. It has the same theoretical advantages of communism, but the same practical flaws.
Under the new system, the moment a child realizes that not participating won’t hurt their grade that much, since everyone else helps to keep that child’s grade up, they will stop participating. Since it’s part of human nature to be lazy when you can, nobody would want to do the work and they all would stop doing the work. No child would want to be the one child that is doing the work. Since nobody else is working, the class grade will be low anyway, and no matter how much effort a single child puts out, there would be little to no reward for his effort. That one child could just stop working, and the gain from no work will easily outweigh the slight drop in grade.
Under the new system, the vast majority of a students grade is based off of the work of other people. Why would you work for a grade when your personal work, or lack thereof, hardly makes a dent in your final grade?
The system is doomed to collapse. No one would do anything, since doing the work won’t generate a reward. The only way the class system (and true communism) could possibly have any hope of working is if every single student in the entire class is an overacheiver that is willing to work for a their grade, even when the majority of the grade is out of their control.
Studies have shown that students perform better in smaller schools. This is partially due to the fact that being in a large school causes students to feel like they lose their individaulity (they feel like they are just part of a giant machine). If just the loss of individuality is large enough to cause a grade drop, imagine what will happen in your class. “Names do not exist, students are just numbers.” This rule, by itself, absolutely crushes any sense of individuality in the class room. Every student wants to feel special or unique, and this rule is like saying “you’re so normal and non-unique, you don’t even get to be called by your real name, instead you shall be called the number 15 from now on. It’s descriptive enough.”
I do not support this method of teaching, and I believe that it will have negative effects on the student’s work ethic and grades in the class, and as well as outside of it.