Personality is what makes a person unique. Literal meaning of personality is the distinctive 
character or qualities of a person. Development means to make more elaborate.
So, together they mean different action taken for the development of the character and attitude.

A Crucial factor that moulds the personality of a child is the environment to which they are exposed.
 Need not say that no place can be a better place than school for personality development.

Gone are the times when school used to be mere chalk and duster classes. 
Now a day’s school is becoming more activity oriented and interactive. 

School gives a broader perspective  on life, more knowledge and broader platform to share views and gain experiences. 

More importantly, they help in development of cognitive, behavioural and emotional intelligence part of one’s personality.