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SPANISH EDUCATIONAL SYSTEM
From my point of view, the Spanish educational system has several serious problems.
First, pupils may not repeat a grade more than once. This is a great disadvantage as they pass advance to the next grade without the knowledge they should have. This rule does not benefit them at all. In fact, I think this hurts them, making it harder to continue with the normal rhythm of class.
Secondly, there are serious problems of discipline in secondary schools. This is because many families believe their children should be brought up in high school. I do not think so. On the contrary, I believe that children should learn to behave at home to behave. Such education They should receive such education from their parents. What I mean is that the purpose of secondary school is to teach several subjects such as Literature, Biology or Mathematics and rules of behavior have to be learned at home.
In addition, there are too many pupils in each class, which increases the risk that such problems occur. If there were fewer students in each class, I'm sure less problems would occur.
Third, when a student has a discipline problem, he is usually expelled to his home from school. In my opinion, other punishments are more effective. For example, if the student makes has to do cleaning in school, outside of class time, he can reflect on the offense he committed. The problem with this method is that more staff are needed to work in the evenings is needed and at this period of crisis, the State doesn’t invest enough in education.
Finally, I think many of the problems that currently exist in the Spanish educational system have solutions. This solution is more economic investment.

Very good. Mostly just some changes in the order of words. My corrections are in red and my suggestions to sound more natural are in blue/grey.