2. Little is known about liters and milliliters.
Mathematical knowledge of liters and milliliters 1. Information about liters and milliliters
There is a folk method that takes "liter" as the unit of measurement. A liter is one-tenth of a barrel, and a liter of rice is 2000 grams, which is 4 kilograms. In the past, people invented this method of measuring rice by volume without standard weights and measures, and it is still very useful now. There are many literary works that reveal that the landlord's usury deceives farmers by means of small promotion (fighting) and large promotion (fighting), which reflects the exploitation system in feudal society.
L is represented by mathematical symbols, and mL is represented by ml.
The international system is:
1l =1000 ml =1cubic decimeter (dm? )
1ml= 1 cm? )
1 cubic decimeter = 1000 cubic centimeter
1 m3 = 1000L(m？ )
2. Life knowledge about milliliters and liters
1, Coca-Cola has 1.5 liters.
2. Tsingtao beer 600 ml. 3. Most drinks are 500ml. If you buy two bottles and pour them together, it will become1l.
L according to the volume, the weight is different with different specific gravity. 4, boxed milk is generally 250 ml.
5, mineral water is generally 550 ml. Extended data:
L is expressed as L in the international system of units, and its secondary unit is mL.
The conversion relationship between L and other unit of volume is: 1, 1000 ml = 0.00 1 m3 = 1 decimeter cubic = 1000 cm3,10l =1m3. 10cm* 10cm 3， 1ml = 1cc 4， 1cc4 = 1000l 5， 1l = 1000ml。 6. In addition, one liter in Korea is about 1800 ml, and one liter in Japan is about 1803.9 ml.
7. Cross conversion: one liter ≈0.264 gallon (American system) and one liter ≈0.22 gallon (British system).
3. About 200 words of mathematical composition about litres and milliliters.
Liters and milliliters of math diary 300 words Today, the teacher said that she would go home to do it: 1 liter. How much water is it? 1 ml of water? I like doing this kind of experiment best, so I must explore it today.
As soon as I got home, I ran to my mother and asked, "Mom, do you have a 1 liter bottle?" Mom said, "There are 1 liter bottles in the cupboard." I searched for a while and finally found the cupboard. I opened the cupboard and there was indeed a bottle of 1 liter. I put the bottle under the tap and opened it. After the water was filled, I put 1 liter of water in my hand and weighed it. It's really light. I poured water into my cup, just enough for 4 cups, so it can be inferred that the capacity of each cup is 650. Later, I also did a milliliter experiment. I only dropped 13 drops of water and 1 ml, which means that 1 ml is rare. The total blood volume of healthy adults is about 4000 ~ 5000 ml. Usually about 3200 ~ 4000 ml of blood circulates in the heart and blood vessels, and about 800 ~ 1 000 ml of blood is stored in organs such as liver and spleen. The amount of unpaid blood donation is generally 200 ml.
The mystery in mathematics is really amazing!
4. How to write math diary in terms of time, area, liter and milliliter?
Keeping a diary has always been an important part of Chinese teaching, which can help students record their growth footprints, accumulate vocabulary, cultivate their expressive ability and improve their writing level.
In fact, keeping a diary is not just a patent of Chinese subject. In mathematics teaching, students can also record their own mathematics knowledge, mathematics problems and the application of mathematics in daily life in the form of diaries.
This semester, after teaching "Understanding of liter and milliliter", the author tried to let students write math diary for the first time, and * * * wrote two articles: The first article is "How to make a container with 1 liter"; The content of the second article is "market research-milliliter and liter in life". These two diaries are based on practical actions. I remember that day in class, I asked students to bring bottles, paper strips, double-sided tape and other tools. We made a 1 liter container in the experimental classroom. On the same day, I arranged for my classmates to go home and recorded the making process. Another Sunday, I asked my classmates to take a break and go to a nearby supermarket to make a survey, recording which items are measured in milliliters, how many milliliters each, which items are measured in liters, and how many liters each.
(This is an assignment in the book.) In the assignments handed in, I found that some diaries were short, with many typos, and the sentences were not fluent. Because it's the first time to write a diary, even if it's not good, I will give priority to encouragement. At the end of the article, I will write a sentence: "It's still complete", "Write less typos in the future" and "Not bad! If only it were more specific. " To tell you the truth, it took me * * days to correct these diaries, and I really realized the hard work of Chinese teachers in correcting compositions, but I realized the fun after hard work.
1. Understanding students' inner feelings about math diary has one advantage: it can promote the interaction between teachers and students. In the past, I seldom communicated with students from time to time after math class, but this time after I asked students to keep a diary, I found from their words: how happy students are in math activity class; I never get tired of hearing about "DIY"; I also found that some students' production process is incorrect (it is impossible to take care of every child in the class) ... For students who have made careful records, it is a happy thing for children to see the praise written by the teacher at the back of the diary.
Second, let mathematics be closely linked with life. This sentence is often used in class: "There is mathematics everywhere in life." But how much do students know about this sentence? I don't think a fourth-grade child will have a deep understanding.
This time, I asked the children to observe with their own eyes and take notes with their pen pals. Through this form, students really appreciate the mathematics in life (as do the middle school students in the diary). It is worth mentioning that Qian Yi, a classmate of our class, recorded the capacity of 90 kinds of commodities in his diary, and classified these commodities according to "liter" and "milliliter" and wrote them on three sides.
I was very moved at that time. Compared with those students who only find a few items from home, she is really not simple! The new mathematics curriculum standards and revised textbooks emphasize the connection between mathematics and real life, and should reflect that mathematics originates from life and is used in life. Through various forms, let students realize that mathematics is around, appreciate the charm of mathematics and feel the fun of mathematics.
5. How to convert milliliters into liters?
1 ml = 0.00 1 liter.
1L = 1000 ml
Cubic meters, decimeters, centimeters, liters and milliliters are all unit of volume. Among them, liters and milliliters are also unit of volume (main measuring liquids). 1 cubic decimeter = 1 liter, 1 cubic centimeter = 1 ml.
Because the plot ratio of every two adjacent units is 1000, so.
1 m3 = 1000 cubic decimeter = 1000000 cubic centimeter.
1 cubic decimeter = 1000 cubic centimeter
That is, 1 l = 1000 ml.
1ml = 0.00 1l。
Little knowledge of liters and milliliters 1. What are the knowledge points of liters and milliliters?
Knowledge points of liters and milliliters:
1. Measure the amount of water, oil, drinks and other liquids, usually in liters. L can be represented by the letter "l"
2. Less liquid is measured, usually in milliliters. ML can be represented by the letter "ml".
3. 1L = 1000 ml (ml, ml)
For example, 4 1000 ml is 4000 ml, then 4 liters =4000 ml; There are two 1000 ml in 2000 ml, so 2000 ml =2 liters.
4. Different liquids have the same capacity, but not necessarily the same weight. 1 the weight of the liter of water is just1kg; 1 liter of milk weighs more than 1 kg; 1 liter of oil is less than 1 kg.
2. Information about liters and milliliters
There is a folk method that takes "liter" as the unit of measurement. A liter is one-tenth of a barrel, and a liter of rice is 2000 grams, which is 4 kilograms. In the past, people invented this method of measuring rice by volume without standard weights and measures, and it is still very useful now. There are many literary works that reveal that the landlord's usury deceives farmers by means of small promotion (fighting) and large promotion (fighting), which reflects the exploitation system in feudal society.
L is represented by mathematical symbols, and mL is represented by ml.
The international system is:
1l =1000 ml =1cubic decimeter (dm? )
1ml= 1 cm? )
1 cubic decimeter = 1000 cubic centimeter
1 m3 = 1000L(m？ )
3. Life knowledge about milliliters and liters
1, Coca-Cola has 1.5 liters.
2. Tsingtao beer 600 ml. 3. Most drinks are 500ml. If you buy two bottles and pour them together, it will become1l.
L according to the volume, the weight is different with different specific gravity. 4, boxed milk is generally 250 ml.
5, mineral water is generally 550 ml. Extended data:
L is expressed as L in the international system of units, and its secondary unit is mL.
The conversion relationship between L and other unit of volume is: 1, 1000 ml = 0.00 1 m3 = 1 decimeter cubic = 1000 cm3,10l =1m3. 10cm3,1ml =1cm3 =1cc4, 1cm3 = 10000L 5,100l =10000. 6. In addition, one liter in Korea is about 1800 ml, and one liter in Japan is about 1803.9 ml.
7. Cross conversion: one liter ≈0.264 gallon (American system) and one liter ≈0.22 gallon (British system).
4. About 200 words of mathematical composition about litres and milliliters.
Liters and milliliters of math diary 300 words Today, the teacher said that she would go home to do it: 1 liter. How much water is it? 1 ml of water? I like doing this kind of experiment best, so I must explore it today.
As soon as I got home, I ran to my mother and asked, "Mom, do you have a 1 liter bottle?" Mom said, "There are 1 liter bottles in the cupboard." I searched for a while and finally found the cupboard. I opened the cupboard and there was indeed a bottle of 1 liter. I put the bottle under the tap and opened it. After the water was filled, I put 1 liter of water in my hand and weighed it. It's really light. I poured water into my cup, just enough for 4 cups, so it can be inferred that the capacity of each cup is 650. Later, I also did a milliliter experiment. I only dropped 13 drops of water and 1 ml, which means that 1 ml is rare. The total blood volume of healthy adults is about 4000 ~ 5000 ml. Usually about 3200 ~ 4000 ml of blood circulates in the heart and blood vessels, and about 800 ~ 1 000 ml of blood is stored in organs such as liver and spleen. The amount of unpaid blood donation is generally 200 ml.
The mystery in mathematics is really amazing!