In my understanding, the diary is written once a day and the weekly diary is written once a week, which requires a lot of time and frequency. I think it's better to give myself a relaxed space and let some interested students do it voluntarily. Calling for knowledge-math notes. In the initial stage, first provide some questions for students to try to complete. The following is the first assignment. Select a few of them. I sincerely hope that the teachers will put forward your valuable suggestions and give us the direction of progress. Show the book to the students after class. My classmates and I are looking forward to your encouragement! !
1, the consequences of carelessness.
In the past, people would have bad consequences because of carelessness. What I said today was an careless thing.
The teacher made us a test paper in the morning and handed it out in the afternoon. I think I only got 92 points in the exam. I looked at what was wrong, and I began to be dumbfounded after reading it. Because most of me are careless, I made some mistakes in oral calculation. One of them is: 752/5= I wrote this question as 752/5 = 15...2. Now I can see at a glance where I am wrong, because I lost the zero at the end of the quotient. The first way I judge is to check: 15*5+2=77 can't be 752; The second method is estimation: 15*5 is about 50; The third method is that the product of 15*5 cannot be three digits; The last method is: the quotient of 752/5 is three digits, so I must be wrong to write two digits. I think the simplest method is the fourth method, so I will often use the fourth method, and there are still many mistakes waiting for me to solve!
Through this lesson, I understand: I can't be careless because I am easy to calculate in the future. I will use vertical calculation and check. I must try my best to destroy the careless enemy!
2, the consequences of carelessness Li Laihui
I got 97 points in the exam today.
I came home with a test paper and found a wrong question. The problem is this: woodpeckers can eat 645 pests every day, while frogs eat 304 in four days. How many pests do woodpeckers eat more than frogs every day? I know that frogs eat 76 strips a day through calculation, and then I use 645-76=569 (strips). However, I wrote the minus sign as a division symbol. Strange to say, I checked it carefully. Why didn't I check out this mistake? It is the result of carelessness!
Through this question, I understand a truth: carelessness can't get good grades.
3. Exam Jia Nan
Do you all think math test papers are easy to do? But I think the easier it is to do, the easier it is to make mistakes.
I just finished the paper this morning and handed it out this afternoon. At first glance, I only got 93 points, 4 points less than the first unit. I deducted 2 points for the first big question on the first page. If I check it carefully, won't I get 2 more points? The fourth question on the second page is deducted 1 point, which should not be wrong. Let's look at the fourth sub-question of the fifth big problem. When a word is read, the meaning of the whole question is different, so we will make mistakes when we do it.
If these questions are correct, isn't that 100?
4. The consequences of carelessness Wang Renkang
In the past, people were careless, which caused bad consequences. What I said today is such a careless thing.
In the morning, the teacher handed out a test paper. I think I only got 97 points. Among them, what should not be wrong is: what is the highest number of 735/7 quotients? I wrote hundreds of them. Do it for me next time, and I'll do it as soon as I see it. There are two questions that say "about", but I use accurate calculation.
After passing this exam, I understand: you must understand the topic before you do it!
5. Carelessness in exams.
Today, Teacher Cai gave us a test paper. This test paper is the divisor of Unit 2 and the division of one digit.
The exam has begun. I think this test paper is very simple. When I finished the last question, I was stumped. I think this question depends on which vegetable is cheap, so we should calculate the unit price of the two vegetables first. I use 18/8=2 (yuan) ... 2 (yuan), 30/9=3 (yuan) ... 3 (yuan). Haha, I figured it out. However, when the test paper was handed out, I actually wrote all the oral calculation questions wrong and was deducted 5 points. 1 point was deducted from the fill-in-the-blank question, and I got 9 1 point.
I wrote this article, and math diary learned that simple topics should be carefully read, not written correctly in the notebook and then written wrongly in the test paper. ...
6. Analysis of Mathematics Test Paper Peggy
Now I have taken the math exam twice. I got 95 points the first time and 96 points the second time. 96-95= 1 (point). Oh, that's too bad I only got one more point in the exam. After returning home, I stared at the test paper for a long time, but I didn't check it carefully. Others are because they are wrong. For example: What vegetables are cheaper than what vegetables? You can't compare the price of a radish with that of an eggplant. On the contrary, the price per kilogram of radish is higher than that per kilogram of eggplant. Solving problems requires a combination of graphics and text. If you only look at the pictures, it will be unscientific, because two radishes can't be 8 kilograms.
After passing these two exams, I understand that the examination paper is ready, and I must check it carefully in order to get high marks. If you don't check, you will lose points. But think about it in combination with the reality of life.
7. Xu Ying, this title should be correct.
I got 9 1 today, and made many mistakes, so I want to introduce a wrong question.
The topic I shouldn't have done wrong is oral calculation: 645-76, and the number I originally wrote was 69. The teacher asked me why it was 69, and I replied: I think 645-79 has been used up, and I lost one hundred places, so I made a mistake.
Through this exam, I know it is not difficult to get a hundred points. As long as you can do it carefully and check it carefully, you are likely to get a hundred points.
8. Careless me Pan Lele
Today, I am very happy. Because I got three points more than Wen Li. What makes me sad is that I can't get more than 95 points in the exam. I made three mistakes. The first problem is that I treat three digits as two digits. The second problem is that multiplication is treated as division. Why do I think multiplication is division? It turns out that division is popular now, so I regard multiplication as division.
Children, be careful not to regard multiplication as division!
9, careless I Zheng Pei
Today is the math exam. I think this test paper is very simple. After I finished writing, I checked it again. If there is no problem, I won't look it up. After a long time, the class was over, and the teacher said to roll it up.
After school, the teacher handed out the test papers. I saw 99 points on the test paper, and I also wrote: remarkable progress. Congratulations, Zheng Pei! I turned to page 2 again, and I didn't write the remainder and calculation times after 367/5=73. But I got 99 points, and I'm really happy!