Write a composition about the changes before and after the school.

Great changes have taken place in our school, which has become a playground for children. Our school is Diaodong Primary School. Not long ago, earth-shaking changes took place in our school, which was very unexpected. Before the summer vacation, our study environment was not very good, and the little students had no place to play, so they had to play in the open space in front of the flag desk. There is no school gate, just a few stone blocks as a school gate, and there is no fence. The carport is also very simple, and the toilet is in front of the teaching building. There is only one three-story teaching building in our school. This is so unlike school. What you know is school, and what you don't know is home. And the former headmaster was very irresponsible. What was the school like before? Now it must be the same as before. It can't be said that it should be built from scratch. Since our headmaster Zhang came, he not only took charge of our safety, but also built a "new school" for us. Now our school has changed a lot. President Zhang is also afraid of construction for our safety. Some children went there and threw a brick at them. Therefore, as soon as we have a holiday, we have built the school gates, walls and toilets. The toilet used to be in front of the teaching building, but now it is behind it. The place ahead has become a playground for primary school students. Moreover, the gate is luxurious, and the tiles are attached to the wall, which reads the words Diaodong Primary School in Diaozhen. The toilet is also tiled, which looks like an old house from a distance. Fences are also made of iron columns. In a word, our school finally looks like a school. I want to thank our headmaster, Mr. Zhang, for his contribution to our school, for his kindness to us and for his responsibility for our safety.