800 words in the first three minutes of the fourth grade math class (1) Dear teachers and students:
Hello everyone!
Learning math is like fishing; Solving a problem is like catching a fish; So, I have mastered a way to do the problem, just like with a fishing net, even the most difficult problem can be successfully broken through! Therefore, whether you can learn math well depends on whether you have fish or nets. You have solved a problem and still have a golden key to open the door to mathematics!
In fact, it is not difficult to learn mathematics, mainly because you can be good at practice and thinking. As the saying goes, "Practice makes true knowledge". In our daily life, we should observe and discover more, then you will know that mathematics is around us. The purpose of learning mathematics is to apply it in real life. Mathematics is used by people to solve practical problems. For example, when shopping on the street, it is natural to use addition and subtraction. Geometry is naturally used to build houses; It's natural to look at the time by 24-hour timing ... there are countless such problems. This knowledge is generated from life, and finally summed up as mathematical knowledge to solve more practical problems.
Now, I consciously associate mathematics with my daily life. Found a lot of mysteries and fun about mathematics. Once, my mother baked a cake and could only put two cakes in the pot at a time. I think it takes two minutes to bake a cake, one minute in front and one minute in the back, and at most two pancakes are put in the pot at the same time. How many minutes does it take to bake three cakes? Back in the study, I calculated and came to the conclusion that it takes 3 minutes: first, put the first, second and third cakes into the pot at the same time. 1 min later, take out the first cake, put in the third cake, and turn the second cake over; Bake again 1 min, and let the second cake be baked and taken out. Then put the reverse side of the first cake and turn the third cake upside down, so it will be all done in 3 minutes. I told my mother what I thought, which really saved me a lot of time. Time is life! It turns out that another advantage of learning mathematics is to save time! Deep, too deep!
Mathematics should be studied in life. It is inseparable from life. If you study deeply and thoroughly, you will naturally find that mathematics is actually very useful. Geometry in mathematics is also very interesting, especially the strangest "circle" in geometry. The formula for calculating the area of a circle is S=∏r2. Because the radius is different, the area of the circle is also different. For example, is a circle with a radius of 9 cm equal to a circle with a radius of 5 cm? Let's use the area formula to find the area of two circles, which are 254 respectively. 34 square centimeters and 78.5 square centimeters. The radii of the two circles are different, so the areas of the two circles are also different. If the radius is long, the area is large; If the diameter is short, then the area is small! With this rule, you are guaranteed to do the problem in the future!
Mathematics is like a mountain peak, soaring into the sky. I felt relaxed at first, but the higher I climbed, the steeper the peak became, which made people feel scared. At this time, only those who really love mathematics will have the courage to continue climbing. Therefore, people who stand at the peak of mathematics love mathematics from the heart. Remember, people who stand at the foot of the peak will never see the summit! If you love math, you can learn it well!
800 words in the first three minutes of the fourth grade math class (2) Dear teachers and students:
Hello everyone!
I remember when I was a child, when I came back from kindergarten, my mother always asked me to count how many people in my family ate, how many hands and how many legs I had today. Later I learned that my mother taught me math.
After entering the school, I found that mathematics is a very interesting course. No need to carry it. As long as you listen carefully, master its rules, use it flexibly and calculate carefully, you will certainly get good results.
I remember that I got 100 in the final exam of the third grade of last semester, and I was the first in my class. I was very happy and proud. By next semester, I thought I had a good foundation, so I stopped studying hard. I only got more than 80 points in the final exam. My mother knew, and instead of scolding me, she sat down and patiently said to me, "Do you know why I didn't do well in the math exam? It's not that you won't, it's that you underestimate your enemy! Mathematics is not as simple as you think, it needs your flexibility and seriousness. " After listening to my mother, I bowed my head.
In the blink of an eye, in the fourth grade, mathematics becomes more and more difficult, from simple one-digit addition, subtraction, multiplication and division to three-digit division and mixed operation. I just know that it is not easy to learn anything, but I am a careless king, and there are always some calculation mistakes in my homework every day, not to mention the exam. Take this mid-term exam for example, I am fully capable of getting full marks. Because of a calculation error, alas!
A parent-teacher conference was held the other day. My mother didn't put in a good word like last time. When she got home, she said with a straight face, "If a person keeps making the same mistake, it's not that he is careless, but that he doesn't care. No matter math, Chinese or English, you must study hard and have a good learning attitude in order to have a good performance! " I am ashamed to hear that.
I promised, "Don't worry, Mom. From now on, I will definitely remember your words and improve every subject. Believe me, I will give you a satisfactory answer in the final exam! "
Mathematics is my favorite subject, and it must be my strong point!
800 words in the first three minutes of the fourth grade math class (3) Dear teachers and students:
Hello everyone!
I believe that mathematics is a subject that makes many people have a headache. However, learning mathematics is not helpless. As long as you master the right methods, you will certainly learn mathematics well. Next, I will talk about my heart, hoping to help everyone.
First, pay attention to the lecture in class and review it in time after class.
If you want to learn math well, you should follow the teacher's thoughts in class, finish your homework independently after class and be diligent in thinking. For some problems that are difficult to solve for a while because of their unclear thinking, let yourself calm down, seriously analyze the problems and try to solve them by yourself.
Second, do more questions appropriately and develop good problem-solving habits.
If you want to learn math well, it is inevitable to do more problems, and you should be familiar with the problem-solving ideas of various questions. For some error-prone topics, you can prepare a set of wrong questions, write your own problem-solving ideas and correct problem-solving processes, and compare them to find out your own mistakes so as to correct them in time.
Third, adjust the mentality and treat the exam correctly.
If you want to learn math well, you must adjust your mentality, calm yourself down at any time, think in an orderly way and overcome impetuous emotions. In particular, we should have confidence in ourselves and encourage ourselves to overcome difficulties.
It can be seen that if you want to learn mathematics well, you must find a suitable learning method, understand the characteristics of mathematics and let yourself enter the vast world of mathematics!
800 words in the first three minutes of the fourth grade math class (4) Dear teachers and students:
Hello everyone!
The cold winter quietly left, and Miss Chun came to us in soft gauze. She sprinkled a little dew and moistened the world and the earth. Everything in the world absorbs nectar and thrives. In the woods of sasha vujacic, sasha vujacic, a young musician, Miss Chunyu, is playing music in the green and whispering for the sleeping bamboo shoots. The shoots of bamboo shoots woke up and emerged from the ground. They opened their eyes and looked, oh, how beautiful! Peach blossoms are crimson, green branches are dancing and green braids are dancing, and birds are chirping in the trees. Isn't all this just a report to hibernating animals that spring has come?
In the field, there are blooming flowers everywhere, and the fragrance of flowers is refreshing, attracting groups of bees to dance on it. In the field, the wheat seedlings are rippling and the rape blossoms are Huang Cancan. Under the caress of Miss Feng's little hand, they fall into English from time to time. A group of little girls who love beauty came to the flowers, picked bright flowers and put them on their heads. You smiled at me and the flowers blushed. It's really beautiful.
You see, that open river is like thousands of silks and satins blown by the wind. The fish in the water are in droves, foaming slowly and wagging their tails to play. The ducklings are swimming in the water, sometimes diving into the water and sometimes surfacing. In order to express their joy, they sometimes lead their necks to sing, as if singing: "Spring is coming!" " No wonder the ancient poem goes: "Spring River Plumbing Duck Prophet."
"A year's plan lies in spring". On the edge of the field, farmers' uncles are trying to loosen the soil, sow seeds and water.
What an infinite spring! The beauty, simplicity and tranquility of this natural world are refreshing. I hope the "spring" in my hometown will always be there! I hope that our great motherland has the light of "spring" everywhere! Spring is infinitely good!
800 words in the first three minutes of the fourth grade math class (5) Dear teachers and students:
Hello everyone!
I am honored to give you a three-minute speech before today's class.
First of all, I want to share a word with you. "I would rather choose pride than inferiority. Because pride needs capital, capital needs accumulation, accumulation needs sweat, and inferiority needs nothing. " I overheard this sentence while watching the video of General Qiao Songlou's speech at Fudan University.
Yes, the theme of my speech today is self-confidence.
Everyone's life is not smooth sailing, not a lake without smoke. But a journey full of hardships, bumps, twists and turns, challenges and setbacks. Every day belongs to us is a challenge. We need enough self-confidence to overcome difficulties when we meet the morning sun every day.
After Einstein's "Theory of Relativity" was published, a book "One Hundred Refutations to the Theory of Relativity" was concocted, which attracted a group of so-called celebrities to make a huge attack on this theory. However, Einstein was confident that his theory would win, and he disdained Dafa. He said: "If my theory is wrong, it is enough for one person to refute it. A hundred zeros add up to zero." He strengthened his belief in winning, persisted in his research, and finally made "Theory of Relativity" a great theory in the 20th century, attracting worldwide attention.
Students, maybe we can't be people who have made great contributions to society like Einstein. But we still have to face everything, difficulties and setbacks with confidence like him.
Madame Curie said: "We should have perseverance, especially self-confidence! We must believe that our talent is used to do something, and no matter what happens, the living will always work as usual. " It is self-confidence that supported her to win the Nobel Prize twice after being hit by lovelorn, widowed and social gossip, and made great contributions to the scientific cause of mankind.
I firmly believe that self-confidence is a kind of strength, a kind of strength that leads us to persist. No matter in good times or bad times, we should face life with a smile and calmly. With self-confidence, there will be hope in life. "Since God has given talents, let them be employed!" Even if fate plays tricks on us again and again, as long as you have self-confidence and a self-improvement and positive heart, success will belong to you sooner or later.
Students, six years of primary school must be eventful. I hope that from today, from now on, we can all turn the accumulation of sweat into a proud and confident capital. In order to give up everyone else's ambition to face every test we should face. Let our primary school life become a glorious memory of life.
Thank you all.