Knowledge points of mathematics in the first grade of catalog primary school
Primary school students' first-grade mathematics knowledge points
Senior one mathematics knowledge points
Learning style of first-year mathematics
Understanding of mathematical knowledge points 1. Number of first-grade primary school students
(1) Counting, reading and writing
(2) the specific size (">, sort
(3) the composition of numbers
(4) Cardinal number and ordinal number
2.0 Understanding-indicating no, indicating the starting point.
3. Calculation:
Addition calculation-understand the meaning and know the plus sign.
Subtraction calculation-understand the meaning and know the negative sign.
Calculation of correlation (within 5): addition and subtraction of 0.
/kloc-addition and subtraction exercises from 0 to 5:
1 + 3 =( ) 1 + 1 =( )3 - 3 =( )2 + 3 =( )
4 - 4 =( )3 - 3 =( )3 - 1 =( )2 - 2 =( )
1 + 1 =( )3 + 1 =( )2 + 3 =( ) 1 + 4 =( )
1 + 2 =( )3 - 2 =( )4 - 3 =( )2 - 2 =( )
1 + 1 =( )2 - 1 =( )3 - 1 =( )4 + 1 =( )
2 - 2 =( )4 - 2 =( )3 - 3 =( )2 + 3 =( )
4 - 3 =( )2 + 2 =( )3 - 2 =( )2 + 2 =( )
4 - 4 =( )3 - 1 =( )2 + 2 =( )3 - 2 =( )
4 - 4 =( )2 + 3 =( )3 + 1 =( )3 + 1 =( )
1 - 1 =( )4 - 3 =( )4 - 1 =( )4 + 1 =( )
3 + 1 =( ) 1 + 2 =( )4 - 2 =( )2 - 2 =( )
3 - 1 =( )3 + 1 =( )4 + 1 =( ) 1 + 1 =( )
2 + 2 =( ) 1 - 1 =( )3 + 1 =( )2 + 1 =( )
4 + 1 =( )4 - 4 =( )2 + 1 =( )3 + 2 =( )
2 + 2 =( )4 + 1 =( ) 1 - 1 =( )2 + 3 =( )
1 - 1 =( )3 + 2 =( )4 + 1 =( ) 1 - 1 =( )
2 + 3 =( ) 1 - 1 =( ) 1 - 1 =( )3 + 1 =( )
The knowledge points of primary school students' first grade mathematics are 1, addend+addend = and 2, and minuend = difference.
Sum = appendix+appendix difference = negative
Total increase = another increase minus difference = minus.
Another addend = Addendum Minus = Minus Difference
Difference+Minus = Minus
Subtraction = difference+subtraction
3. The first digit of a number from the right is a number (indicating several 1).
The second place is ten. The third place is several hundred. (meaning hundreds)
Both reading and writing start from a high position. Reading is writing words, and writing is writing math words.
Write math words before each one and English words after each one.
4、? The following is the sum of the addition calculations. (+)
? The above is the part of the solution, which is calculated by subtraction. (-)
5. Find out how many large numbers are more than decimals and calculate by subtraction. (-)
Find how much the decimal is less than the large number, and calculate by subtraction. (-)
Large number = decimal+extra decimal = extra decimal = extra decimal = number of sizes
6. The hour hand is short and the minute hand is long. 1 hour =60 minutes 60 minutes = 1 hour 1 minute = 15 minutes.
When the minute hand points to 12, it is the whole hour, and when the hour hand points to the number, it is the time.
When the minute hand points to 6, it is half hour, and when the hour hand passes through the number, it is half hour.
7. Make up ten songs: children clap their hands, and everyone sings ten songs, nine for one, eight for two, seven for three, six for four, two or five for ten.
Ten-fold method: divide the decimal and round the large number. Division of large numbers and rounding of decimal places.
8. Graphic application problem: first find out the known conditions and problems, and then determine the addition and subtraction. Finally, remember to write an answer.
Find out what * * * is and add it. (+)
Find out what is left, what is left, how much is left, and work it out by subtraction. (-)
9. 1 yuan = 10 angle 1 angle = 10 point 1 yuan = 100 point.
10, exchange the position of the addend, and the same is true.
First-year math knowledge 1, recognize the clock, hour and minute, first look at what time the hour hand has passed, then look at the number of minutes, when and when to be together, and quickly tell the time.
2. Looking for the changing law of graphics, you can think about the increase or decrease of shapes, colors and numbers.
3. There are rules between series. Observe the changes of adjacent numbers and find out the rules through calculation. The data behind is very clear.
4. There is a method for statistical data, counting one point at a time, marking while counting, and filling in the chart after counting the numbers.
5, two digits plus or minus one digit, integer ten, please pay attention to children, digital symbols must be seen clearly, the same number should be added or subtracted.
6. When changing large denomination RMB into small denomination RMB, think about the composition of the numbers. There are several small denominations of RMB in the RMB you want to print.
7. The minimum two digits are 10, and the ground two digits are 99.
8. Two digits of10 and three digits of 100.
9. Find an addend and then add and subtract another addend. Find the minuend and add and subtract with the difference.
10, what is the ratio of the two numbers? Subtraction for difference, addition for large number and subtraction for decimal number.
1 1, three numbers can be added or subtracted into ten. If you can make ten, count them first. Two digits plus one digit, look at the single digit first, judge whether to carry it or not, and then determine the ten digits.
12, the number of writes also starts from the high position, and whoever is a few will write a few. There is no one except the space, so write zero to occupy the space.
13, the ratio of two numbers, first look at the number of digits to compare, there are many digits, and the number of digits is the same from the high position.
14, the digital baby is really wonderful. The number of digits is different. What is a few in ten is a few, and what is a few in one.
15, the ratio of two similar numbers can be described by the fact that the large number is greater than the decimal number and the decimal number is less than the large number.
The learning style of senior one mathematics is 1, which emphasizes the cultivation of learning habits.
When a child is in the first grade, he has to learn to deal with many things by himself, such as sorting out his schoolbag, preparing school tools for class the next day, and (stationery that parents should prepare for their children: pens, rulers, exercise books and erasers). It is inevitable that children forget to bring their math books and pencil boxes at first. Sometimes it's a waste of time for parents to send them away, but as a good parent, it won't happen again. They will let children gradually learn to manage themselves and cultivate the habit of carefully preparing all school supplies.
Some children are born careless, either forgetting to bring this one or that one, so before going out, their mothers repeatedly tell them not to forget their exercise books and keys ... Children may leave their things at home while they impatiently promise. A loving mother did this. She put a striking note on the child's schoolbag: Check, have you brought everything? If so, say goodbye to mom. This method may not be practical for everyone, but it can give us some enlightenment.
The training of homework format is also an aspect of the cultivation of study habits. Students should use math exercise books to practice writing numbers and formulas.
On the other hand, the study habit is to finish homework on time. There are few written assignments in senior one, but there are some practical activities and oral assignments in reading, speaking and calculation. Pay attention to remind children to finish it seriously. Especially in the first two months of school, our parents will spare some time to listen to their children and watch them do practical work every day. In order to gradually cultivate children's good homework habits.
2. Pay attention to the cultivation of children's computing ability.
Addition and subtraction within 20 is a very important basic knowledge. Children must learn well and reach the level of skilled calculation. The final speed requirement is about 8 step-by-step calculation questions per minute (referring to the number directly filled in), and the correct rate is 90-95%. Because of the different foundation of children, there are some differences in the proficiency and speed of calculation among different children. To narrow this difference, it is not objective to practice only one math class every day, so parents are also needed.
There are many ways to practice calculation, such as making cards for children to practice independently, or doing housework and taking children out to play. Or it can be in the form of a book: Can you drill through a cave? Can you jump over every stump? ..... At the same time, we should pay attention to the cause of the child's calculation error, whether it is carelessness or a problem with the calculation method. However, to prevent boring sea exercises, dozens of questions every day, and punishing mistakes will stifle children's interest in learning mathematics.
Among them, if you add a few, you will get a dozen and the corresponding subtraction. Let children make a pendulum with learning tools such as sticks and talk about calculation ideas.
3. Understand mathematics according to life and let children grow up in the game.
Some mathematical knowledge is abstract and confusing. Our parents should pay attention to creating life situations for their children and let them understand knowledge in actual experience. For example, the understanding of "left and right" is a difficult point for children to learn this semester. Some children need a long time and process to master the left and right correctly. Parents should be patient, strengthen their children's understanding of the right and left hands in life, and guide them to distinguish the left and right relationship of objects. At the same time, we should also pay attention to a reference object, such as how to distinguish the left and right sides of the opposite person when two people face each other.
When time permits, our parents might as well play math games with their children to promote their development in mathematics, cognition, spatial understanding and imagination. Through those games with training purposes, because in the game, children can freely and pressurelessly vent their inner feelings and find answers to questions, when children infiltrate the hope of "success" into the game, their unwilling efforts will expand from the game itself to learning. For example, in the "guessing game" in the book, one person thinks about the numbers in his mind, and another person guesses, and constantly adjusts the answers according to the prompts until he guesses correctly. This game can develop children's reasoning ability. Parents can play with their children in stages. At present, they can guess numbers within 20. Next semester, we can develop a guess in the range of 100.
Summarize and sort out the relevant articles about the knowledge points of first-year mathematics;
★ Summary of compulsory knowledge points in first grade mathematics.
★ Sort out and summarize the knowledge points of first-grade mathematics.
★ Sort out the knowledge points of first-grade mathematics.
★ Knowledge points of the first grade mathematics text
★ The arrangement of mathematics knowledge points in the first grade of primary school
★ Organize the knowledge points of mathematics in the first grade of primary school.
★ induction of mathematics test sites in the first grade of primary school
★ Summary of knowledge points of first grade mathematics
★ Sorting out the key and difficult points in the first grade of mathematics
★ Guidance of mathematics learning methods in the first grade of primary school
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