Teknoteacher tries a hack rap to appeal to teens

It's very rough and not quite ready. Looking for some feedback. I wanted a different way to get a message to children in Year 9 at our school who will be making their GCSE subject choices in January. So I plan to record a parody of a rap video in school, teachers dancing etc. then put it on YouTube. I only wish my rapping didn't sound so flat - I need some vocal coaching.