Our school has carried out three projects in this science and technology festival competition: jigsaw puzzle, bridge load-bearing design and Rubik's cube. I participated in the first two competitions. When I arrived at school in the morning, the playground was already bustling, and everyone was ready to try their hand. The north wind roared and the leaves rustled, but they couldn't extinguish everyone's passion. In the jigsaw arena, the students took out their drafts and sat on the floor, and the group composed of several other students and I also worked hard to create them. Everyone had a clear division of labor, United as one, and began to color each other. Suddenly, a small problem appeared. After several revisions, the color of the city wall was not satisfactory, so Chen Xin and Li Mingpu "patched" it again with crayons, but the crayons were too thick and easy to paint the grid. At this time, Li Mingpu thought of drawing with colored pencils and adding a layer to the outline, so that our city wall was conquered under the "triple attack" of colored lead, crayons and colored pencils. Time flies, and soon the game time of Tangram is over, and the students are very satisfied with their works. I am very pleased with this spirit of unity and overcoming difficulties.
The next bridge load-bearing design competition is even more thrilling and unforgettable. This competition is very difficult for our group. First of all, the bridge can be made in advance at home and directly take the finished product to participate in the competition, but we understand that the bridge is made on the spot, so we have no choice but to apply to the referee for our final and make the bridge on the spot first. In this way, we will spend more time and energy on the construction site to build bridges nervously, and we will cheer for each other. Although it was not as fine as it was made at home, it took us about three minutes to complete the paper bridge, with three layers of corrugated paper folded in the middle and a layer of A4 paper wrapped around it as the bridge deck. At this time, the referee asked for a class every six years, so we took to the stage with tension, excitement and a little confidence. Of course, the last feeling is the most important, we have the courage and confidence to accept the challenge! At the beginning of the game, we calmly paved the bridge deck and then took out a heavy box and put it on it. Whenever the bridge trembled slightly, our hearts trembled. Reality is better than imagination. When four 3200-gram weight boxes have been placed on the bridge deck, our bridge still stands, which gives us great encouragement! But when two water bottles were put on, the bridge suddenly lost its balance, and my heart seemed to lose its balance and began to beat violently. Fortunately, I kept the bridge in time. Now we are faced with a difficult choice: whether to continue to take risks and win, or stop when it is good, that's all. After discussion, we are prepared to take a conservative risk. I began to add water bottles carefully to master the balance in real time, and added two more water bottles with a weight of 2400 grams! Of course, it is also necessary to be conservative. If you are good, you will accept it! In the end, we won 5600 grams of bridge * * * and won the second place in the grade group! I can't believe my eyes. We overcame many difficulties and turned defeat into victory! That little bit of confidence and the third choice in the' multiple choice'-courage and wisdom, made our competition successful!
The Science and Technology Festival is over, but tense scenes and competitions often flash before my eyes!