Montessori math digital card

Plug root plate Ⅰ

In teaching, decimal numbers and continuous numbers appear alternately.

Let's know the number first, then the numbers and names.

Demonstration one?

Steps:

1 Only take the beads first, only show the beads.

Let's review how many beads there are first. What is this? Then let the children put it in a triangle.

This is 10. How many beads are there on it?

This is one, ten and one, right? Eleven (action: put a bead behind the vertical ten)

5 Similarly, 12 and 13.

Six exercises 1 1- 13, please put ... please count ... please help me build one 12. What is this? 13

This is four, this is ten, and ten plus four equals fourteen.

14, 15, 16.

8 three-stage teaching method

9 17, 18, 19

10 three-stage teaching method

Work goal: any number can quickly take out its quantity.

Demonstration 2

Steps:

1 A few days ago, we practiced the math of 1 on the Segen board. Today, we are going to practice math.

Let's take it out.

There are some digital cards in it. Oh, let's sort them out.

4 This is 10, and this is 1, which adds up to 1 1. Action: Take out the arranged 1-9 from1and take it to the side of 10, then put it aside and push it to a position.

5 Similarly 12, 13

6 name practice 1 1- 13, identify after disturbing the order, please help me construct a 12.

Let's review: 10 and 1 ......

7 10 and 4 add up to 14, and the same applies to 14- 16, 17- 19.

Demonstration 3

A few days later

1 A few days ago, we learned the number of Segan board 1 and its beads.

This is 10 (Arabic numerals), and this is also ten (take out the beads of 10). They are the same.

This is eleven (put another bead), and this is 1 1. Insert the numeric keypad of 2, which is also 12.

4 Demo to 13

The teacher will leave it to you. Match the beads with the cards.

After the children were arranged, the teacher finally took him to recognize them again. This is 1 1- 19.

Plug root plate Ⅱ

After learning about Segen II, children can know all the two digits.

Demo 1 (understand integers from 20 to 90)

The method of taking out the plug root plate is the same as that of taking out the plug root plate I (grasp the middle four plates with both hands and fingers).

1 arrangement 1-9 (Arabic numerals)

2 Know the numbers of 10 and 10. This is 40 and this is 40. They are the same (the number matches the number of beads).

Demonstration 2

Once the demonstration goes well, let's have a second demonstration now.

1 This is ten, and this is also 10. I'll add another one, which is 1 1, a beaded, 1 digital board.

This is ten, and I add two to make twelve.

Put another one directly at the beading place and ask the child: How much is it now?

4 digital card synchronous replacement

Then I'll add another one. how much is it?

19 How much is an extra one, please tell me?

Is there a pair of tens here? We said, how much is ten dollars? It's a ten

We can change these ten Zhang Yiyuan dollars into ten yuan ones.

Where should we put this? Put in 20, (ten beads instead of ten loose beads)

10 I'll add another one.

1 1 20 After that, the teacher asked the children to do it themselves.

Teaching assistants should keep records. How much did he do today? (Allow him to interrupt)

Language: remember today, you did it ... take out Segen board 2 as soon as you come tomorrow!

A hundred beads

Homemade digital labels and bridges

There is a shelf. Please ask the children to take it down.

1 unfold the chain and take out a hundred plates of beads. Here's a secret. If you open it, there are many of them. I will prove it to you. (protection)

Show small labels of green 1-9 and red 10-90.

They are the same. I'll prove it to you now.

As we said before, ten tens are one hundred, so they are the same.

Action: Fold the chain, then close 100 beads for comparison, exactly the same!

Count the beads with a small bridge, one by one, each with a label, one by one, ten by one, until one hundred.

Demonstration 2:

Label children with numbers, and the numbers match the number.

1 The teacher took a small card with numbers written on it and asked her to find a place. For example, find out where 55 is, and please find out where 89 is.

Why are you so fast? Tell me how you found it.

89. How to find it? 80+9, or the one before 90- 1 90, shows his mathematical ability.

Yibaiban

Put 100 digital cards into a 220-card box and label them. Take whichever box you want.

You can use this after learning the plug-in board 20.

Steps:

1 This is the operation panel and this is our number 1- 100 card. Let me take out a box first.

All digital cards are distributed.

We need to line it up now. I put one and you put one, okay?

Can you do the rest by yourself?

You have arranged it from 1-20.

After 4 rows, take out the correction plate for inspection.

Where did the hundred dollars fall?

1 Depending on the way you walk, Baihui falls in different places, such as walking vertically, horizontally, zigzag and backwards.

Take out the correction card, there is a secret in it, don't you find it? Ask the children to observe.

Columns are all from 1-9, or single digits, and there can be many secrets. The purpose is to guide him to observe and make him more familiar with numbers.

Extended activities: Put all the cards in order, in groups of four.

Paperwork:

1 A correction board, the teacher gives a number, and the child finds which number and circles it.

One hundred correction boards, and the rest are filled in even series.

Please color ... in ... color, ... color ... color, and finally, it becomes a flower pattern.

A thousand beaded chains?

1 Look, this is one thousand. Action: Take out the cube. I want to prove it to you. As many as the chain below.

How much is this? A ten, from a ten to ten tens, how much is ten tens?

Compare one hundred here, is it the same? The same, then I'll put it here.

Finally, the position of the number is as follows:

See how many hundred-dollar bills are on it? ten thousand

How much is five hundred? a thousand