As we grow up, we often treasure many precious memories. There are laughter, tears, experiences and emotions in these memories. As I mature step by step, what I have never forgotten is a profound labor experience. Most of the semester has passed, and we who have just faced the exam finally ushered in the dawn. That's right, the long-awaited labor and technical activities are finally here. As a result, this lively production scene immediately kicked off. Our labor skill is small production, that is, making model aircraft. On the first day of class, the teacher circled the classroom with the airplane he made in front of the whole class, and finally landed it safely in his hands. Who wouldn't be excited and excited about that scene? So, the moment the plane landed in the teacher's hands, the whole class immediately burst into thunderous applause. After that, the teacher began to teach us how to make model airplanes. So everyone started to use their hands, measuring, drawing, and cutting, it was so lively. But later, probably because a large circle of classmates were chattering non-stop and the classroom was in a mess, the teacher became angry and reminded those students with a warning look and some slightly indulgent language. But they seemed not to hear and kept talking loudly. The teacher was always angry and ignored all the students who came to ask questions. He is the most annoying person to listen to people who don't listen carefully when he talks and come to ask questions later. In this way, our class left a very bad impression on this teacher. The third day is also the day I am most looking forward to, because the glue on the model aircraft has dried and we can test fly. I received the model aircraft I made by myself, walked onto the podium, and prepared for the test flight. It is so exquisite and beautiful. I think my model aircraft can fly very far. But to my surprise, two seconds after I threw it, it fell to the cold floor. I was confused and at a loss when the teacher suddenly spoke quietly and said, "You see, this is the consequence of turning in the opposite direction." Turning in the opposite direction? I looked back at the blackboard, and the big white characters told me: turn clockwise about one hundred and twenty times. I see. I found the root of the problem, so I tried flying again according to the big words on the blackboard. Later, due to limited time, I only made more than 70 turns, but I barely managed to fly over the good line. No way, no chance. Those flashing memories illuminate my direction and guide my steps. I will always treasure this beautiful memory, enrich my life, and recall it slowly in the future.