Once upon a time, there was a young man named Joe Li. Joe worked very hard. After he finished college, he became a teacher. He loved teaching little kids.

Joe was special because he kept studying even after college. He read books and wrote papers to get his master's degree and then a Ph.D. He did all this while teaching kids every day. Joe was very busy, but he never gave up.

Because he worked so hard, something great happened. Joe first became the principal of another school. He did a great job there. Then, he became the principal of Datong Elementary School. This is a big job! He helps all the teachers and takes care of many students.

Everyone at Datong Elementary, the teachers and the kids, think Joe is amazing. They say, "Joe is a hard worker and a great principal!" And Joe is happy because he loves his school.