Need help :)

Another essay to write for school.. >_<

This is the topic which I chose -

Nurse or trainer

Paragraph one - support ( I need to write about trainer )

Paragraph two - support ( I need to write about trainer )
paragraph three- against ( I need to write about nurse )

So what to write about on paragraph one , two and three?

I will think about it and then post it later to see if it's OK

But at least give me some examples.