Along the development of the life quality, nowadays, people more attended to art. And suddenly, they found out that art can helps to improves students performance and results in other subjects. Probably because it is easier for multi-tasking students to explore new things. And obviously I agree that art should be obligatory in the school.
Firstly, I believe that art absolutely helps students relax, chill after exhausted lessons. For the example, we are stressful because you have to put the finishing touches on tight deadline. We can chill a little bit by see and perceive meaningful draws.
Secondly, art might be relates to something special as beliefs or cultural. So for some reason, it can motivates us focus on our target, on our dream. It inspires we try our best for what you believe, for what important to you.
Last but not least, art is one thing destructing our history. It's shown exactly the development of specific cultural after the alter of the time.
However, it could be the main reason lead to some problems. Art is help students relaxing but they also can be distracted into another topic which not related to the main purpose of art in the school is help students improving the performance and study results.
After all, there are clear benefits of officializing this subject. One should notes here, I believe art should be obligatory in the school as this provides some serious important benefits even it could be some problems with it. 
Along the development of the life quality, nowadays,  
people
 more attended to  
art
. And  
suddenly
, they found out that  
art
 can  
helps
 to  
improves
  students
 performance and results in other subjects.  
Probably
  because
 it is easier for multi-tasking  
students
 to explore new things. And  
obviously
 I  
agree
 that  
art
 should be obligatory in the school. 
Firstly
, I believe that  
art
  absolutely
  helps
  students
 relax, chill after exhausted lessons. For the example, we are stressful  
because
 you  
have to
 put the finishing touches on tight deadline. We can chill a  
little bit
 by  
see
 and perceive meaningful draws. 
Secondly
,  
art
 might be  
relates
 to something special as beliefs or cultural.  
So
 for  
some
 reason, it can  
motivates
 us focus on our target, on our dream. It inspires we try our best for what you believe, for what  
important
 to you.
Last  
but
 not least,  
art
 is one thing destructing our history. It's shown exactly the development of specific cultural after the alter of the time. 
However
, it could be the main reason lead to  
some
 problems.  
Art
 is  
help
  students
 relaxing  
but
 they  
also
 can  
be distracted
 into another topic which not related to the main purpose of  
art
 in the school is  
help
  students
 improving the performance and study results. 
After all
, there are  
clear
 benefits of officializing this subject. One should  
notes
 here, I believe  
art
 should be obligatory in the school as this provides  
some
 serious  
important
 benefits even it could be  
some
 problems with it.