What do we know about how schools provide mental health for students? What do we not know about how schools provide mental health for students?

Problem Formulation

This is the beginning of writing a dissertation. I need a paper with 3 paragraphs to state my problem formulation. My professor wants the three paragraphs to contain the following information

1st Paragraph: Intro paragraph that states the Mental health issues
2nd Paragraph: What do we know about how schools provide mental health for students?
3rd Paragraph: What do we not know about how schools provide mental health for students?