Описание друга одноклассника

In my class boy Andrei studies. He is 9 years old and he is a year younger than everyone else. However, he learns best of all and gets only 11 and 12 points. All teachers like him very much, because he is a calm and gallant boy. He looks older than his age, because he is tall and thin, and he has always a serious face. Andrew is engaged in a very interesting and rare sport for schoolchildren - fencing. Once, I was at his training. He just superbly fences, just like a real D\'Artagnan! Andrey invited me to the competition next week. I will definitely come to see.