You need to pay serious attention to grammar, my dear friend! Don't worry... You'll be alright with practice....and we'll help you;
Schools which are mainly the purpose of learning and teaching to the students, have several problems around which may madden students like lacking of air conditioning, inadequate sports ground, over-crowded number of students and so on
.... Have a look at this sentence - it's pretty too long and therefore you tend to make many mistakes;
Schools which are mainly for the purpose of learning and teaching to the students
.... teachers teach and students learn - schools provide education;
The primary objective of the schools is to provide education to students. ... Likewise, make shorter sentences until you get a good hang on grammar
Also, I really don't get the idea of what you were trying to say in the latter part of that sentence.