1 plays a connecting role.
The operation mode can be exactly the same as that of the red and blue counting rod.
Steps:
? 1 Take it to the reception desk. Language: We need a work mat (a work mat on the desktop) to do this job.
? Language: Look, there are many colorful beads in this box. How's this? This is called bamboo chips. It has a nickname. Do you have a nickname? Well, it has it, too. We call it little bridge.
? Take out the little red bead and ask the color and language: We can call it red 1.
Take green as an example. Ask about quantity (there are several beads here), color and language: We can call it Green 2.
5 and so on, pink 3, orange 4, light blue 5.
6 If the number is large, you can't see the number at a glance, and guide your child to use the number of beads. Language: Let's hold Xiao Qiao's ear and count together, 1, 2, 3, 4, 5, 6 (to be read), um, purple 6. Use the same number of small bridges, white 7, brown 8 and dark blue 9.
? If children are experienced, they will learn faster.
All seven have been counted. Take the children to read it from beginning to end, red 1 ... dark blue 9.
? Language: Well, you see, 1-9 is all arranged. What shape do you think it looks like? Well, a triangle.
9 three-stage teaching method, understanding quantity and color. For example, 4, 5 and 6, please teach their names ... (three groups. )
10 The teacher shuffled the beads, and it was the children's turn to arrange them.
? We've messed them up now. Please put them in order.
? Demonstration 2:
1 Don't come to the teacher until all the children are arranged.
Check after platoon 2 and ask again. Teacher: What's this? Child: This is red 1. Teacher: What's this? Child: this is green number 2 ... and so on until 9.
That's like giving me a game. Language: Please give me 7.
After getting what the child gives, check it by counting the beads.
Language: Please show me X (any).
Let the children take the quantity at any time, no matter right or wrong, without comment, just count to check, so that the children can find the mistakes on their own.
When a child is proficient, he will know what it is as soon as he sees the color.
? Demonstration 3: Combination Digital Card.
? 1 Let the children arrange the beads first, and the teacher takes out the digital card.
? For children with previous experience, teachers can directly arrange orderly and unordered rows, such as letting digital cards be scattered. (Let the beads be out of order after that, but most children can skip this step. )
? 3 Take out the red 1 and find the corresponding card.
4 Take out the green 2 and let the children find it.
? Next, let the children do it independently, and the teacher only looks at it without guidance.
After the child is found, check it again: read it again, we can 1, 2, 3, 4, 5, 6, 7, 8, 9, or 9, 8, 7, 6, 5, 4, 3, 2, 1.
7 increase the difficulty, both of them are scattered, and let the children put the digital card next to the beads.
Check the children as soon as they are finished.
? Extension: After learning 10 beading, you can do 10 beading, 10 synthesis or 10 decomposition together.
? Language: This is 10, and this is the sum of 9, 9 and what is 10?
Eight and what? 2。 You can always do 5 and 5.
If you break it, you take one. How much is left? 9。
Remember, there must be a number as a benchmark. For example, it can also be 9, and any long pole is not necessarily the longest.
Exercise on paper: The composition of ten can also be done by coloring beads, printing out a new triangle, or confusing the order for him to color.
When designing papers and other work, we should consider: Are there any points of interest? Can you extend the working period?
The other one is made in the factory. Grandma Meng has never seen it, which is more interesting. The following number plates 1-9 are used for error correction.
Count the sticks, add red and blue sticks, and prepare a piece of exercise paper. 4+2=? Add up with a few sticks, and then write the answer on paper, or add or subtract within 20.
Golden beading group
Steps:
1 There are many beads in my tray. How much are these? One, we call it one.
Pick up ten. What do you think it looks like? You said this looks like sausage/candied haws. We call it 10.
What does this look like to you? We call it a hundred.
What does this look like to you? It's like a cube. We can call it a thousand.
Naming exercise: a one, a ten, a hundred, a thousand.
Please put ... in ... ...
Please open your eyes. What did I take?
If his answer is wrong and the explanation is unclear, continue to understand. This is ... Please put ... in the tray.
Demonstration 2
Review: This is 1, this is 10, this is 100 and this is 1000.
Look, this is a 1 and this is a 10. Look, is there one in ten? Yes, count, one one, two ones, count. Oh, ten out of ten are one.
Is there 10 out of 100? Count. How many tens are there? Action:
This is 1000. Have you noticed that there are hundreds in 1000? Vertical ratio, 10 thousand
To sum up the secret: there are ten ones in a hundred miles, ten tens in a hundred miles and ten hundred in a thousand miles.
Please put in one thousand yuan, one hundred yuan and ten yuan.
Demonstration 3
Know the number corresponding to the number.
A few days later,
1 Review first. This is a one, a ten, a hundred and a thousand.
I also brought some digital cards today.
How much is this? This is 1, what is this, this is 10, what is this? 100, he may not know 100. One hundred consists of one 1, two zeros, one 1 and one zero. We call it ten, one 1 and two zeros.
I have a longer number. Is 0 more or less? How many zeros are there after it? It consists of a 1 and three zeros. Action: Cover with your hand 1 or 000.
5 three-stage teaching practice 100 and 1000
please ......
Please describe 1000.
This is a (bead), this is 1, and they are the same.
This is ten (beads) and this is 10. They are the same.
This is one hundred, and this is 100. They are the same.
This is one thousand, and this is 1000. They are the same.
Do you want to know how much it costs to put all the beads together? know nothing at all
Now let's do a magic trick, and you'll know soon! Action: The digital card is aligned to the left, and the single digits of 1 are at the top. Push the long card from right to left and finally get 1 1 1 (be sure to show him the combination number for the first time).
So put them together, it is111.
10 10 Here, open the hidden 0 and display it.
Golden beads, or an arrangement of nine.
Steps:
1 Take out the beads. Language: This is a one, this is a ten, this is a hundred, and this is a thousand.
Put it back.
Look, there are many beads in my tray. Please count with me. How many are there?
4 Arranged at a palm-width interval, as shown in the following figure:
One one, two one to nine ones.
Here are nine ones. If I add another one, how much is it?
As we said before, how much is ten dollars? A 10, because how many 1 are there in 10? Take out ten beads.
This is a ten-dollar bill, two tens, three tens and nine tens.
If I add another ten, how much is it? It's one hundred.
10 Here are nine tens. Add ten to make one hundred.
1 1 Here are one hundred, two hundred, three hundred, one hundred to nine hundred.
12 I'll add one more and it'll be 1000.
13 because there are 100 miles in a thousand.
Summary: nine ones, plus one is ten.
Nine tens, plus one equals one hundred,
900, plus one is 1000.
Understanding: A digit has at most nine digits, and when a digit accumulates to ten digits, it is one of the next digits (needless to say, for children).
Demonstrate twice taking quantity.
1 After a few days, please arrange these nine and call me.
I need you to help me get the beads.
I want you to buy me two. You got them. Let me count. You really got them. Ok, please put them back.
Please get it for me: how much do you get? Teacher's view
It's no problem to practice to five digits, so raise it to ten digits and one digit. Please change two tens and two ones for me.
Please give me seven tens and eight Zhang Yiyuan ones.
No problem, then increase it to 100+ 10+ digits.
Digital card
Steps:
1 display digital card 1-9, all recognized, where have we met? Sand digital board, digital and chip, spindle box, colored beaded ladder.
Ask him to arrange them vertically in order.
What do these numbers mean? Green, they all belong to a family.
Which family are they from? check against the authoritative text
5 What is this? This is 10. Where have we met before?
6 10 consists of a 1 and a 0.
7 consists of a 1 and a 0. We call it ten.
8 consists of a 2 and a 0. We call it twenty.
9 that is made up of 9 and 0. Guess what we call it?
10 introduces 50,60.70 in turn.
1 1 Ok, please arrange them.
What color are they? blue
13 blue. They are ten families.
14 What is this? This is 100. One hundred consists of one 1 and two zeros.
15 consists of two and two zeros. We call it 200 (talking and taking out the card).
16 then can you arrange it like them?
17 ok, let's have a look. Read all 100-900. What color are the numbers in this column? Red represents a hundred schools, and red belongs to a hundred schools.
18 This is 1000, and one 1000 is composed of one 1 and three 000.
19 What's a two plus three zeros? Go to 9000 in turn ......
Now the teacher asks you to arrange them in this order.
2 1 This is ... Read with me.
What colors are these? Green, the same color as what? (family)
This belongs to thousands of families.
We know so many figures today. ......
He will know the job now, but if he takes it out alone, he may not say it right away, so he can take out a number alone and practice it again.
Demonstration 2
1 Get a tray, please get me a 7, please get me a 3.
Please send it back.
Three places are no problem, and there are ten places to go.
Please give me a seventy and an eight.
How much did you get?
6 A 70 and an 8, how much is it altogether?
Do you remember that card?
8 Align to the left, slide the long card board at the back, align the three bars on the left, and push from right to left, and the numbers will come out automatically.
Please give me a 700, a 50 and an 8.
What's the total of 10?
Increase the difficulty: the number of combinations, please help me get 77, please help me get 7852,
It's a little harder to get a number with 0. Please help me get the number 405,4005, which some children will pronounce as: 4005.
Demonstration 3: Take both beads and cards.
The whole work of Nazhunaka lasts about 2-3 months. To lay a good foundation, you need to be very skilled, take the quantity and get the card before you can carry out the next four operations.
45 display
1 prepare 45 for each number (1+2+3+4+5+6+7+8+9 = 45).
No.2 card corresponds to the quantity, 2 corresponds to 2 beads, and so on.
3 each kind is to teach the number first, then teach a few names, and then combine.
When arranging, the unit must be at the far right.