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).
"Interesting Graphics" Knowledge Points of Senior One Mathematics in Beijing Normal University Edition
Identify graphics (rectangle, square, triangle and circle)
1, the understanding of rectangle, square, triangle and circle can distinguish four basic graphics.
2, learn to observe, can find out the basic shape of life, will give examples.
3. Be able to distinguish the relationship between face and body and realize that "face is in the body".
4, can find out the rules of a set of graphics.
5, can find out the basic graphics in complex patterns.
Do it by hand (1)
Students can fold, cut and spell their favorite patterns by themselves.
Learn more about plane graphics through origami, cutting and other activities.
Simple graphics are decomposed and repaired by origami.
Hands-on Practice (2)
Understand the composition of jigsaw puzzles. Through the activities of jigsaw puzzles, I am further familiar with the plane graphics I have learned.
A preliminary understanding of parallelogram can only make students intuitively understand the shape and name.
Hands-on operation (3)
By appreciating and designing patterns, we can learn more about squares, rectangles, triangles and circles.
Mathematics learning methods and skills
Create a good atmosphere in the lecture hall
Modern educational theory holds that a good lecture hall atmosphere can be a silent medium to convey common sense, the key to enlighten wisdom and the potential power to cultivate morality. Every teacher knows that the atmosphere in the lecture hall greatly affects the students' learning automaticity. In education, teachers plan students' favorite and emotional learning activities, stimulate students' love for learning, and let students learn mathematics happily; Teachers provide students with rich opportunities to participate in mathematical activities, guide students to acquire mathematical common sense, technology and mathematical thinking methods through independent research and cooperative exchange, and let students experience a vivid, automatic research and distinctive invention process. All this needs an excellent lecture hall atmosphere to support.
Teachers should create a democratic and harmonious learning atmosphere for students. The real democracy and harmony in the lecture hall stems from a teacher-student relationship. The educational process is a two-way process of information exchange between teachers and students, and it is also a process of emotional exchange between teachers and students. Through their own educational activities, teachers moisten students' hearts with love, stimulate students' enthusiasm for learning mathematics, and make them actively participate in learning activities automatically. Take the lesson "Knowing 0 and Related Addition and Subtraction" as an example. In the activity of writing 0, the teacher used these words "Do you want to write 0?" Ok, hold out your little hand and look at the blank screen book. Draw a line of 0 in the Japanese word box. What do you think should be paid attention to when writing 0? "What do you want to say to the children in our class?" "The teacher thinks that your 0 must be beautifully written, so start writing a few 0 s in the Japanese word box below! "Arrange students to carry out activities such as book blank, drawing, summary writing and independent writing.
The teacher's words are permeated with understanding, respect and trust for students, and they are deeply concerned about students, so that students can get the method of writing 0 happily and automatically. In the process of learning common sense, when students make mistakes, don't criticize them, but give them another chance. For example, ask students to say, "How many peaches are marked on the plate/kloc-0?" At this time, the reply "Little monkey ate 1 peach, marked 1" appeared. The teacher didn't worry, then asked, "How many peaches are there in that plate?" The child immediately said, "It's marked 1." How many frogs are there on two lotus leaves? When one student says 4-0, other students are eager to express their own equation 4+0 or 0+4.
At this time, the teacher gave the students a chance to correct themselves and asked them to say it again on the grounds that "the teacher didn't hear clearly". Wonderful has won students the opportunity to understand success. "Give students another chance" makes them feel warm and encouraged, keep their love for learning, and keep their enthusiasm for learning and learning common sense. In a democratic, relaxed and harmonious educational atmosphere, students feel comfortable, have vivid thoughts, dare to think, dare to feel and dare to speak, and their learning potential and automaticity are fully brought into play.
Beijing normal university edition first-year mathematics knowledge points related articles;
★ Beijing Normal University Edition Senior One Mathematics Knowledge Points
★ Knowledge points of the first volume of mathematics in Grade One of Beijing Normal University Edition
★ Encyclopedia of Mathematics Learning Methods in Different Grades
★ Guidance of mathematics learning methods in the first grade of primary school
★ Sort out the knowledge points of first-grade mathematics.
★ Beijing Normal University first-year mathematics edition teaching plan.
★ Beijing Normal University Edition Primary School Grade One Volume 1 Mathematics Review Plan
★ Beijing Normal University Edition Primary School Grade One Mathematics First Volume Teaching Plan
★ Classroom teaching cases of primary school mathematics teachers
★ Guidance on learning methods for the first grade.