From grade one to grade six, we have changed a lot, from a little girl to a smart girl, so smart that all the knowledge comes from one person. The first class in the morning is math. Although I am not very good at math, I still hug every class with my arms. This class is different from the past. Teacher Fu asked us to teach ourselves first, and then she would explain. I had some trouble in previewing Know Bi, but I kept patience, kept calm and thought slowly with my intelligence. I often use highlighter to underline the important content-the number before comparison is called the first item, and the number after comparison is called the last item. The former item of the ratio is the ratio except the latter item. Here we are. The teacher explained as follows. In order to test our preview just now, Mr. Fu raised a question: To produce 5,400 computers and distribute them to three companies, A, B and C, according to 1: 2: 3. How many computers should each company produce? I read what I previewed just now, and I got up: first, calculate the sum of the front and back terms of the ratio of 6, and then divide by the total number of units, which is equal to 900 units produced by company A. After reading, multiply by the number of units produced by company A, which is equal to 65438+0800 units produced by company B, and finally multiply by the number of units produced by company A, which is equal to 2700 units produced by company C. In this way, a math problem is done.
Preview made me see my own shortcomings and made me motivated. In short, the benefits of preview are numerous, and I must insist on previewing this before class.