It is true that individual’s IQ varies from person to person. Some people believe students should be allocated to different schools or classes which are compatible with their academic competence as it is beneficial to their academic performance. however, others holds that all students should be educated together regardless of their abilities. In my opinion, students should be educated together in lectures, but with separate tutorials.
On the one hand, being taught according to their learning abilities can help students perform better in academic fields, because those with same abilities have similar learning speeds. Therefore, the teacher can focus more on the contents of the lecture without worrying someone cannot catch up with others. For instance, some schools have set up excellent-students classes where teachers have faster teaching speeds and deeper contents. As a result, the graduates turned out to be admitted into prestigious high schools or universities. Therefore, it is reasonable to educate pupils considering their abilities.
On the flip side, some people think that separating students by the abilities does harm to their metal health, bot for brilliant students and ordinary students. It may lead to anxiety if there are too many good students together, as the competition among them will be extremely intense. Meanwhile, average students may suffer feelings of depression since they are excluded from their clever counterparts. Therefore, opponents think that the allocation of students should be banned, giving consideration of keeping mental health.
In my opinion, students should study together with optional tutorials separately, during which teaching assistants will answer students’ questions separately. This provides students chances to both study together and at their own paces. In such cases, both mental health and academic performance are guaranteed. 
It is true that individual’s IQ varies from person to person.  
Some
  people
 believe  
students
 should  
be allocated
 to  
different
 schools or classes which are compatible with their  
academic
 competence as it is beneficial to their  
academic
 performance.  
however
, others holds that all  
students
 should  
be educated
 together regardless of their  
abilities
. In my opinion,  
students
 should  
be educated
 together in lectures,  
but
 with separate tutorials.
On the one hand,  
being taught
 according to their learning  
abilities
 can  
help
  students
 perform better in  
academic
 fields,  
because
 those with same  
abilities
 have similar learning speeds.  
Therefore
, the teacher can focus more on the contents of the lecture without worrying someone cannot catch up with others.  
For instance
,  
some
 schools have set up excellent-students classes where teachers have faster teaching speeds and deeper contents.  
As a result
, the graduates turned out to  
be admitted
 into prestigious high schools or universities.  
Therefore
, it is reasonable to educate pupils considering their abilities.
On the flip side,  
some
  people
  think
 that separating  
students
 by the  
abilities
 does harm to their metal health, bot for brilliant  
students
 and ordinary  
students
. It may lead to anxiety if there are too  
many
  good
  students
 together, as the competition among them will be  
extremely
 intense. Meanwhile, average  
students
 may suffer feelings of depression since they  
are excluded
 from their clever counterparts.  
Therefore
, opponents  
think
 that the allocation of  
students
 should  
be banned
, giving consideration of keeping mental health.
In my opinion,  
students
 should study together with optional tutorials  
separately
, during which teaching assistants will answer  
students’
 questions  
separately
. This provides  
students
 chances to both study together and at their  
own
 paces. In such cases, both mental health and  
academic
 performance  
are guaranteed
.