CLEP Mathematics Lesson and Structure of the lesson plan

**Structure of the lesson plan**

**1. Name of the unit:** Subtraction

**2. Topic:** Subtraction on Number line

**3. Class:** 3rd

**4. Learning outcomes:**

*Children will be able to subtract numbers.

Pupil able to solve subtraction problems with two-digit numbers.

Child use Number Lines to solve subtract problems.

Children use subtraction in their daily life.

**5. T.L.M:** Number Lines, Charts.

**6. Introduction**

**Greetings:**

Good morning, children!

Good morning, sir!

How are you?

Fine, thanks, sir.

How about you, sir!

I am also fine.

**Warm up activity & Mind map**

Children, I ask you some questions.

Children look at the picture.

How many birds are sitting on the tree?

There are 3 birds.

Look at the second picture.

How many birds flew away?

2

How many birds are left now?

1 bird.

**Announcement of the topic:**

This can be written as

3 – 1 = 2

Now the answer is 2.

This is called Subtraction.

Very good children!

**7. Presentation:**

Children today in Mathematics we will learn how to do subtraction and how to subtract two-digit numbers.

OK!

Let’s get started

Children, we will do the addition using the Number Line.

*Subtraction Number Line

1. Subtract 4 from 8.

We use the number line to subtract 4 from 8.

Look at the Number Line. It has 1 to 10 numbers.

First, mark an arrow from 1 to 8 on the number line.

Then count 4 steps backwards. Where do you stand ? at 4

And also make a second arrow from 8 to 4.

Subtract 4 from 8.

We get 8 – 4 = 4

Now the answer is 4.

**8. Practicing Skills:**

Children! You all divide into two groups. And solve the Subtraction.

* Subtraction without borrowing

2. Subtract 65 from 78.

Subtracting 5 ones from 8 ones

8 – 5 = 3

Put 3 in ones column

Subtracting 6 tens from 7 tens

7 – 6 = 1

Put 1 in tens column

78- 65 = 13

Now the answer is 13.

* Subtraction with Borrowing

3. Subtract 58 from 82

First step:

Subtract 8 ones from 2 ones

2 – 8 is not possible

So take 1 ten from tens place.

Add 2 to one ten(10)

We get 10 + 2 = 12

Subtract 8 from 12 .

12 – 8 = 4

We get 4.

Write 4 in ones place.

Now there are only 7 tens in place of 8 tens above.

Second step:

Subtract 5 tens from 7 tens.

7 – 5 = 2

We get 2

Write 2 in the tens column of the answer.

So, 82 – 58 = 24

Now the answer is 24.

**9. Recapitulation or sum up:**

Children! I will ask you some simple oral questions about today’s topic. Tell me the answer quickly.

Ravi had 10 books. He gave 3 to Raju. How many does he have left?

I have 6 chocolates, I eat 2. How many do I have left?

**10. Assessment:**

Do the following Mathematics subtraction:

6 – 5 = ? 15 – 8 = ?

20 – 10 = ? 56- 34 = ?

**11. Teacher’s reflection:**

How many students understood today’s class?

For whom my help was needed?