An ideal composition about being a math teacher, which means my ideal is to be a math teacher. You can write like this: I have a very good ideal. He is a math teacher. I have this ideal because it was difficult for me to learn mathematics at first. I think mathematics is the most difficult subject in the world. But one day I met the best math teacher in my life. He told me that as long as I work hard, I can learn math well. He has been teaching me and giving me a lot of help in math learning. Since then, I have regarded this teacher as an example of my life. So I want to be an excellent math teacher like him.

That's it, that's probably a story, and then I wrote a composition and it came out.