The use of symbols to indicate bigger than, smaller than or equal to Which are use to determine sums less than 200

Subject : Mathematics

Topic : The use of symbols to indicate bigger than, smaller than or equal to

Class : Basic 2 / Primary 2 / Grade 2

Term : First Term

Week : Week 6

Instructional Materials :

• Bundles of seeds
• Number line
• Bundles of broom
• Cardboard strip with numerals
• Bundles of match sticks
• Left hand demonstration
• Right hand demonstration

Reference Materials

• Scheme of Work
• Online Information
• Textbooks
• Workbooks
• 9 Year Basic Education Curriculum

Previous Knowledge :

The pupils have previous knowledge of

Ordering Of Numbers up to 200

that was treated as a topic in the previous lesson

Behavioural Objectives :  At the end of the lesson, the pupils should be able to

• Identify and explain the symbol of greater than or bigger than
• Identify and explain the symbol of less than or smaller than
• Identify and recognize the symbol of equal to or the same value

CONTENT

Symbols are special signs with particular meaning or interpretation.

In Mathematics we have the popular symbols of addition, subtraction, multiplication and Division

We also have symbols that are used for comparison in Mathematics.

These signs are used to show equality, lesser than or greater than.

They are used for comparison in relationship to which sums or items are greater than or less than other

The signs of Equation

Bigger Than Or Greater Than  >

Raise up your right hand 🙋

Bend your arm at the elbow

It forms something like this   >

This sign is called bigger than or greater than

It is used to show that one number or item is greater than or bigger than the other

For examples

1. 8 is bigger than or greater than > 3

2. Daddy, who is forty years old (40) is bigger than or greater than > junior that is  primary 2 who is 9 years old

3. A fully grown horse is bigger than or greater than > a fully grown cat

4. A fully grown rat 🐀 is bigger than or greater than > mouse 🖱

5. 200 is bigger than or greater than > 20

6. (2 + 2 + 2) is bigger than or greater than > (0 + 1 + 2)

🖐️Smaller Than Or less Than  🖐️

Raise up your left hand 👈

Bend your arm at the elbow

It forms something like this   <

This sign is called smaller than or less than

It is used to show that one number or item is smaller than or less than the other

For examples

1. 2 bigger than or greater than < 8

2. James who is 9 years old is smaller than or less < Daddy who is 40 years old and works in a bank

3. A fully grown cat cat is smaller than or less than > a fully grown horse

4. A fully grown mouse 🖱 🐀 is smaller than or less than > mouse 🖱

5. 20 is smaller than or less than > 200

6. (4 + 4  +  4 ) is smaller than or less than > (10 + 11 + 12)

Equal To or The Same =

This is used to show items or sums that are the same value when added together, subtracted from each other, divided or multiplied by each other

For examples

1. (2 + 2) is equal to = (2 x 2)

2. ( 0 + 0 ) is equal to = (0 x 5)

3. (7 + 2) is equal to = (3 x 3 )

4. (27+ 13) is equal to = ( 40 )

5. (100) is equal to = (50 + 50 )

Presentation

The topic is presented step by step

Step 1:

The class teacher revises the previous topics

Step 2.

He introduces the new topic

Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise

EVALUATION

Fill the gaps with either <, >, or =

1. 23 ____ 8

2. 90 ____ (50 + 2)

3. 168 ___ 186

4. 12 ___ 21

5. 20 ____ 200

6. (4 + 4  +  4 ) ____ (10 + 11 + 12)

Conclusion :

The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.

He or she does the necessary corrections when and where  the needs arise.

.