Teach this kindergarten kid how to do math problem 20

Step 1: Count.

Requirements: 1. Be able to count down from "1" proficiently.

2. Be proficient in starting from a certain number in the middle. For example, the teacher says: Count from 4; Start counting with 12.

3. Be proficient in counting down from a certain number in the middle. Example: The teacher says: Count down from 4 and count down from 12.

Note: Counting is a learning content in small classes, and our teachers think that every child should be able to do it. However, we ignore that many children only start counting with "1", and if you ask them to start counting with a number in the middle, they may not know how to count.

Or that the child doesn't know how to jump up an integer like -30.

The hands, mouth, and eyes are the same, and they start by asking themselves and answering themselves, such as "How many are there?" "3", be sure to let him see it again, that is, you have to review it again, in fact, you are telling him why it is "3", which is called "3", and then you can ask him how many there are, and then you have to see his reaction, after the points are stable, the goal has been improved, that is, the "internalization" of the points, that is, how many things you have, the child can tell you that it is "several" by visual inspection, and internalization is also a reliable way to cultivate children's attention.

Step 2: Know the order.

For example: What is in front of 5? How many are in the back? What is in front of an 8? How many are in the back? Count from 5 to front, count backward, 11 to front, count backward.

Step 3: Know the size.

For example: Which is bigger 7 or 8? Which is bigger 12 vs 4?

Step 4: Be able to read the questions.

Myth: Many children can read questions, but they can't read them. The child knows how to "+", but not how to read it.

Step 5: Know the ranking.

Let your child skillfully say what is the single digit and what is the ten digit in the two digits?

For example, 15 is 5 and 1 is 1.

Step 6: Teach calculations.

1. Counting finger addition and subtraction:

Addition example: 15 + 2 We tell the child: put the big number 15 in mind, and the small number 2 is represented by a finger (let the child stretch out his finger) to point, 15 is followed by 16, and two fingers are pointed, then 15 + 2 = 17.

For example, 15-2 = We tell the child: put the big number 15 in confidence, and the small number 2 with a finger (let the child stick out his finger), the middle is the "-" sign, that is, from the front of 15 to count backwards, 15 is preceded by 14, the last 2 fingers are 13, then 15-2 = 13.

2. Addition and subtraction of individual and ten digits:

Addition e.g. 15 + 2 = We tell the child that the addition of single digits and single digits is 5 + 2 = 7, and the addition of ten digits and ten digits is 1, then 15 + 2 = 17 Subtraction e.g.

15-2=, we tell the child that the subtraction of the single digit is 5-2=3, and the subtraction of the ten digit from the ten digit is 1-0=1, then 15-2=13.

According to the gravitational free fall motion, the first one should be No. 1, the second No. 1, the third random, it can be No. 1 or No. 5, the fourth must be No. 1, and the result of the arrangement is 1111 or 1151

To be honest, I didn't understand either.

Early childhood mathematics learning is mainly divided into six modules:

1. Collection: Teach children to learn to classify, help children perceive the meaning of collections, and gradually form the concept of sets about specific things, which is the premise of counting, the basis for forming the concept of numbers, and preparing children for their mathematical ability.

2. Counting: Children always start with verbal counting and then count in combination with physical objects. From meaningless numbers to grasping the actual meaning of numbers, recognizing numbers, understanding numbers, using numbers, and finally forming the concept of numbers.

3. Quantity: Through the learning of sets and numbers, children perceive from imprecise sets to exact quantities, which is the transition from concrete to visualized quantities, laying the foundation for the concept of addition and subtraction.

4. Shape: In the early stage of children's mathematical enlightenment, in addition to addition and subtraction, there is also the learning of geometric figures. Geometry occupies a very important proportion in mathematics and also has a very important impact on the development of children's spatial three-dimensional thinking.

5. Time: Children's understanding of the clock can help them form the concept of time, help them develop good and regular living habits, and help cultivate children's punctuality concept, which is of great significance to children's growth. Communicate.

6. Emptiness: Spatial thinking refers to the ability to identify the shape, position, and spatial relationship of objects, and to form new visual relationships through imagination and visualization. Spatial thinking can effectively help children learn geometry and other types of problems, and play a role in the development of children's brains.

Children with spatial thinking can jump out of the limits of points, lines, and planes, and have multiple angles"Three-dimensional thinking", which will have a profound impact on its future social development.

Use language that children can understand, interesting topics and games, from concrete to abstract, and really cultivate children's mathematical thinking! Let every child love math!

1. Lala's mother bought a bottle of salad oil, which weighed a total kilogram with the bottle, and after using half of the oil, the bottle weighed kilograms. Lala's mom asked Lala:"I wonder how many kilograms of oil there is in this bottle? How much does the bottle weigh? '

2. There are 50 students in a class, and when 1/3 of the boys and 5 girls leave the same number, how many boys are there?

3, 4 4 4 4 = 2 can be added, subtracted, multiplied and divided and () signs.

4. Xiao Ming spent 1550 yuan to buy 6 cars and 1 jeep model, and spent 3650 yuan to buy 13 cars and 3 jeep models, how much is each car model!

5. Two watermelons are 5 yuan each.

Q: 4 kg ( ) yuan 4000 grams ( ) yuan The unit price of two watermelons ( ) yuan.

6. A batch of cement, loaded with a trolley, to use 45 cars, loaded with a large car, as long as 36 cars, each cart is 4 tons more than the trolley, how many tons of cement is there in this batch?

7. Dad bought 8 kg of apples and 5 kg of bananas and gave a total of 72 yuan, the unit price of bananas is twice that of apples, how much yuan per kilogram of apples? How much is a kilogram of bananas? (Solved in 2 ways).

8. A rectangle, the length and width are increased by 7 centimeters, forming a new rectangle 217 square centimeters more than the area of the original rectangle, find the circumference of the original rectangle.

9. In a division equation, the sum of the divisor, the dividend, the quotient, and the remainder is 773The quotient is 18 and the remainder is 26 So what is the divisor, and the dividend?

10. A rope is 180 cm long, make a mark at 3 cm, make a mark at 4 cm, and then cut it at each marked place, how many sections can be cut in total?

Safflower 20

The 5 petals of the blue flower are 5, and the 4 petals are 4

Two yellow flowers are 2, and one is 1

The result is 1+20 4=81

I just wanted to ask when kindergarten will learn multiplication.

These are all wrong ... The correct answer is 81, don't believe yourself in the math to see if 1+20x4 is not equal to 81?

The answer is 101, and the answer to 102 is all wrong, please look at the picture carefully, this picture is carefully tested!

A red flower is 20, a blue flower is 5, and a yellow flower is 1, so 1+20 5=101.?

Kindergarten Math Test Questions.

1. Fill in the blanks.

Second, divided. 3. Judge right and wrong (right hit, wrong hit).

Fourth, the column is vertical.

Fifth, look at the chart and column.

6. Calculation questions.

7. Mental arithmetic.

In the attachment to give you a kindergarten math test ..

Adopt oh dear.

Despise those who don't share, bow grid sniff block

This question is to teach children to draw. Isn't it just to analyze. Is that supposed to be something?

As a parent, you should analyze it, in the above row, he is a spoon in a group of two, a pair of chopsticks, and then another spoon, another pair of chopsticks. So it's the spoon that's in the way.

The bottom one is a group of three, and the one that blocks it should be the thick one. There's a dotted pen on it.

The first picture: The tree is blocking the spoon.

Spoon Chopsticks, spoon chopsticks ......Arranged like this.

The second picture: The tree blocks the ruler and the pen.

Pencil Ruler Fountain Pen, Pencil Ruler Pen ......Permuted.

Dear, you don't need to list equations at all, okay?

Solution: From the meaning of the question, the daily workload of A, B and C is 12 B and C respectively, and a total of (1 8 + 1 12) 3=5 8 (pro, through the branch, will not use the multiplication distribution law to multiply one by one).

The total workload is unit 1, then the remaining workload is 3 8 A C cooperation for 2 days (a total of 5 days, B C did 3 days, there are 2 days left, understand?) ), A and C complete (1 6+1 12) 2=1 2>3 8

So, can it be done? Understand?

Solution: 1 2 5 5 12

Therefore, the project can be completed as planned.

Table of Contents: Ninety-Nine Multiplication Song.

The secret of 1-multiples for math masters.

Math master 2-99 multiplication big discovery.

Math Masters 3 - Multiplication in Life.

Kindergarten mathematics learning is mostly carried out through mathematics games. Its purpose is to educate and entertain, so that children in the sensitive period of numbers are interested in boring mathematics, so that children can learn through play. So the game design should have the following elements:

1. Life-oriented, the closer to the child's life, the higher the child's acceptance, and the higher the quality of teaching completion.

2. Simplification, due to the age limit of kindergarten children, their understanding of many things is still limited to the concrete stage, and the simpler and more specific the children, the easier it is for them to understand and learn.

3. Interesting, observe children's interests, guide and grasp children's learning directions, try to make games interesting and ingenious, and mobilize children's enthusiasm and initiative.

4. Operability, the game makes full use of real objects and toys in life as much as possible, implies rich mathematical concepts and attributes, and guides children to find mathematics and solve mathematical problems through active observation and exploration.

He Qiu pre-optical mathematics, with language that children can understand, interested topics and games, from concrete to abstract, truly cultivate children's mathematical thinking! Let every child love math!