Firstly, school has to help students to put problems into perspective. They have to know that if they fail something in any subject, they don't have to discourage themselves, on the contrary, they should feel that they can achieve so much more.
Moreover, students get stressed in school when they have bad marks, but they should know that they are benefitted since they have all the tools they need so as to find alternative solutions to these types of problems and they don't need to give up because everyone can do it!.
On the other hand, not everyone finishes well and can reduce stress because it is very difficult, not only thinking that you can do it could be enough to combat stress.
To conclude, I think that the first benefit is better than the other one because to achieve all that school ask to do and if they increased productivity, students could not have a good performance in school since all this things causes a lot of stress for them and with stress, problems will not be solved.
