Since science is developed, we should have a sense of innovation. Now let me talk about my gizmo! First of all, let me talk about what my gizmo is about. A few weeks ago, Mr. Yin asked me and 12 other students to take a small invention class. I was deeply inspired after listening to it, and immediately made a multifunctional lunch box and an environmentally friendly and clean writing eraser. First of all, I set my eyes on the lunch box. I can think of it without considering the inconvenience of lunch boxes. "Ah, I finally remember." I said to myself, "Can you add a work box?" In the evening, I started my "covert operation". Before my parents found out, I picked up scissors and tape and sneaked into my "laboratory"-the kitchen. I put the prepared lunch box, chopsticks and spoon neatly together, picked up the adhesive tape and pasted it. Ok, my multifunctional lunch box is ready. The next day, the teacher took my multifunctional lunch box and said to me, "Your invention is very practical, but the tape on it is not strong after several uses." You should put a cover on it. " When I came home with my invention, I quickly found a lid and put it on the lunch box. When I got to school, I gave it to the teacher, and my invention barely succeeded. After that, I will invent a new thing. "Hey, whimsical programs often show the invention of the black eraser, don't they? I want to invent it, it is different from others. " With this in mind, I found a strip of foam with a length of 15 cm and a width of 5 cm, filed a hole in the front of the foam with a knife, and then put chalk on it, so that I can write with the foam and wipe it with the lower end of the foam. It's really omnipotent, but it's just rubbing. Dad brought the eraser back after work. I cut off a part of the eraser and glued it to the bottom of the foam with a cloth, but it was unstable. What should I do? I suddenly thought of a good way to fix the eraser with glue twice. "Well, finished. The problem of unsatisfactory wiping has also been solved. " Even my father said my invention was better than the last one, didn't he? It took me three days and two nights to make this invention, okay? It can not only write without dirty hands, but also is very convenient.