Mr. Firth is an average teacher. He is hard to understand and didn't clarify things. I was a crap maths student while learning in his Year 9 maths class and he didn't really care. I know it was him because I went on to join Sue Robertson's class the next two years where I achieved at an excellence level. Mr. Firth just needs to work on clarification and his teaching method and he can be a good teacher. His is a nice man though, and knows how to be kind to the students.