How to defend Mao Zedong?

I am doing a trial where I am defending Mao and I don't know what kind of questions and answers to use. I am in ap history. My teacher does not know what to do and I can't wait till the year is over. But anyway is there any doentary or primary source I could use. It would be a great help. Since I have no idea what I am doing. Oh and I am a witness which is a poor peasant farmer.