My first time to be a good teacher !!!

Last week the head teacher came into our classroom and told us that our teacher was sick.
Then he said he was going to choose a student to teach the class.To my surprise he chose me!
So I went up to the white board and started to checked the list name. But everyone in my class was laugh at me. They think that i' m to youth to be a teacher. I'm mad at them. So I continue to taught them. When the teacher stayed here the teacher said that this class so difficult to taught. But he said that I was only the person that easy to taught. So i decided to taught them about math. So i put the easy problem to solve, but nobody in the class can solve them. I was very mad at them.
So I explained them how to solved and I continue to put more problem. But this time they can solved it. I'm very happy. So this time I continue to put more difficult problem. But they still can solved it. I felt that i was a good teacher.
Next day my teacher can came to taught back. Today a schedule is about math. The teacher started to taught. She put the difficult problem for everyone in the class for solved. Wow! He not believed that everyone in the class can solved it. And then he told me that i was a good student and a good teacher and he gave me some gift. And i think that this is a first time that i felt very happy to be a good teacher and a good student!!