How is written prose more complex than casual speech

When you speak casually there are no guidelines that give structure. In a paper, you would have to, for example, make an argument and then present the points proving it.  It requires you to think and plan things through rather then just make them as you go along. 

Unfortunately, this is something i can't you with, because i am not you. but i can tell you what to do.so think about times when you met with people with a different ethnic group as you and describe how they acted and also describe time when you may have showed your own feelings and they way you see things about life.    i hope i you somewhat,

Students and school are nouns
good luck!