Whenever you ask from students
what is the most difficult subject?
Most of the time answer will be "Mathematics".
This post will discribe why mathematics is difficult for the students.
Normally students like cramming and they don't want to think, they don't want to apply their mind and mathematics requires application of mind with patience.
Another reason of poor mathematics is the week foundation. You cannot succeed in mathematics if you don't know about the previous knowledge of a topic. For example you you cannot multiply two variables if you don't know the multiplication of simple numbers.
Cramming does not work in mathematics, mathematics requires practice, the proverb practice makes a man perfect works exceptionally well in the learning of mathematics.
Are other communities not relevant to your post? Post them here!