Summary of mathematics knowledge points in the first grade of primary school
1, number: according to the number of objects, it can be represented by 1 1-20.
2. Sequence: 1 1-20 The sequence is: 1 1, 12, 13, 14, 15,/kloc.
3. Comparison size: comparison can be made according to the order of numbers, and the number at the back is always greater than the number at the front, or according to the composition of numbers.
4. Composition of the number 1 1-20: All of them are composed of 1 tens and several ones, and 20 is composed of two tens.
Such as: 1 ten and five 15.
5. Number of digits: the first digit on the right is one digit, and the second digit is ten digits.
6. 1 1-20 How to read each number: read dozens of digits from high places and several digits. Pronunciation of 20, 20 is pronounced: 20.
7. Write numbers: When writing numbers, write against them. If there are 1 tens, write 1 on the ten, and if there are two tens, write 2 on the ten. If there are several 1, write a few on each bit, and if there is no unit on each bit, write a 0.
8. Ten plus several, ten plus several and the corresponding subtraction.
(1), 10 plus several and the corresponding subtraction calculation method: 10 plus several to get ten, ten minus several to get ten, and ten minus ten to get several.
For example, 10+5= 15,17 =10, 18- 10=8.
(2) Calculation method of ten plus several and corresponding subtraction: When calculating ten plus several and corresponding subtraction, you can use the composition of numbers to calculate, or you can add or subtract the numbers in units of one and then add the whole ten.
(3) Add and subtract the names of each part:
In the addition formula, the numbers before and after the plus sign are called addends, and the numbers after the equal sign are called sums.
In the subtraction formula, the number before the minus sign is called the minuend, the number after the minus sign is called the subtraction, and the number after the equal sign is called the difference.
9. Solve the problem
To find how many numbers are between two numbers, you can use counting method or graph method. You can also use the calculation method (subtract large numbers from 1).
Senior one mathematics knowledge points
1 yuan = 10 angle = 100 point.
1 angle = 10 point
1 yuan =(2) 5 angle =( 10) 1 angle =(5) 2 angle.
5 yuan =(5) sheets 1 yuan.
10 yuan =( 10) 1 yuan =(5) 2 yuan =(2) 5 yuan.
20 yuan =(2) 10 yuan =(20) 1 yuan.
50 yuan =(5) 10 yuan =(50) 1 yuan = () 20 yuan +() 10 yuan.
100 yuan =( 10 pieces) 10 yuan =( 100 pieces) 1 yuan.
Amount paid-amount spent = amount recovered (remaining amount)
Money spent+money recovered = money paid.
Amount paid-amount recovered = amount spent (commodity price)
Autonomous inquiry
1. Know different denominations of RMB.
Do you know RMB? Please find out the RMB you know from the box and introduce it to the children in this group. Group activities.
Group Report: Ask the students to introduce different denominations of RMB one by one on the physical projector, and the teacher will add them at random and show them separately.
Understand the progress rate between RMB units.
Let the students identify different denominations of RMB, and educate them to love RMB and save money.
Question: Kid, can you classify these RMB? Please take out the RMB in the box and classify it in groups.
Students report the classification and talk about the basis of classification. Summarizing the students' answers, the types of RMB are: coins and paper money; The units of RMB are: yuan, jiao and fen.
Mathematics learning methods of first-grade children
Method one
Listen carefully in class and review in time after class. The acceptance of new knowledge and the cultivation of mathematical ability are mainly carried out in the classroom, so we should pay special attention to the learning efficiency in the classroom and seek correct learning methods. In class, you should keep up with the teacher's ideas, actively explore thinking, predict the next steps, and compare your own problem-solving ideas with what the teacher said. However, due to various reasons, there are often some students who can't keep up with the teacher's ideas and have loopholes in their studies. At this time, on-the-job teachers are needed to give one-on-one counseling to students. In the process of tutoring, the teacher will help students recall what they have learned in one day and guide them to correctly master the reasoning process of various formulas. In a sense, this will help students develop a learning style of asking questions when they don't understand.
Method 2
How to cultivate children's verbal ability? The verbal calculation is also satisfactory. It is a calculation method that directly calculates numbers without using calculation tools, mainly relying on thinking and memory. The new syllabus points out that oral calculation is not only the basis of written calculation, estimation and simplification, but also an important part of calculation ability. It can be seen that to cultivate students' computing ability, we must first start with oral computing ability. So how to cultivate students' oral ability? My experience is that it is very important for teachers to read the three-character classics well: "foundation (grasping the foundation), teaching method (teaching method) and practicing method (routine training)" Reading the word "base" well means basic oral calculation. Oral calculation in primary school mathematics teaching can be divided into three categories: basic oral calculation, general oral calculation and special oral calculation. These three kinds of oral calculation are mainly based on the content of basic oral calculation, which is the basis of calculation. Basic oral calculation must require proficiency, and proficiency refers to "blurting out", while the other two types of oral calculation only require proficiency or learning.
Method 3
Hand-brain quick calculation is to use different human organs to simulate the operation of corresponding components and principles of computers, and to simulate computers to develop the computing and counting potential of human bodies. It is realized by simulating the calculation and counting of computer 0 and 1 theory to single digits, and simulating the way (software) of computer inductive processing information. It is not only a calculation method, but also a method to train people's hands and brains to simulate computer rapid operation and counting.
Articles on knowledge points of mathematics in the first grade of primary school affiliated to Beijing Normal University;
★ The arrangement of mathematics knowledge points in the first grade of primary school
★ Sort out the knowledge points of first-grade mathematics.
★ 202 1 Mathematics Knowledge Points in Senior One
★ Beijing Normal University Edition Primary School Grade One Volume 1 Mathematics Review Plan
★ Beijing Normal University Edition Senior One Mathematics Volume II Addition and subtraction and summary of interesting graphic knowledge points
★ Guidance of mathematics learning methods in the first grade of primary school
★ Encyclopedia of Mathematics Learning Methods in Different Grades
★ Beijing Normal University Edition Primary School Grade One Mathematics First Volume Teaching Plan
★ Beijing Normal University Primary School Grade One Mathematics Test Paper
★ Beijing Normal University Edition Primary School Grade One Volume II Mathematics Teaching Objectives (Teachers' View)