# SECOND TERM MATHEMATICS SCHEME OF WORK FOR PRIMARY FOUR (4)/ BASIC FOUR (4)

** WEEK 1 CONTENTS**

**MULTIPLICATION OF WHOLE NUMBERS BY 2 DIGIT NUMBER NOT EXCEEDING 50.****MULTIPLICATION OF DECIMAL BY 2 DIGIT NUMBERS.****MULTIPLICATION OF DECIMAL BY DECIMAL.**

** LESSON OBJECTIVE**:
Pupils should be able to:

- Multiply
whole numbers By 2 digit number not Exceeding 50 e.g.

15× 42. - Multiply
decimals by 2 Digit numbers e.g.

1.8 × 13. - Multiply decimal by decimals e.g. 2.3×1.2 = 2.3 – 1 decimal place.

**QUANTITATIVE
REASONING: **Solve quantitative aptitude Problems involving Multiplication of
whole Numbers and decimals.

**WEEK
2 CONTENT: **

**SQUARE OF ONE AND TWO DIGIT NUMBERS.****SQUARE ROOT OF ONE AND TWO DIGIT NUMBER.****SQUARE ROOT OF PERFECT SQUARE UP TO 400.**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Calculate square of 1 and 2 digit numbers.
- Find the square root of Perfect squares up to 400.
- Bring a square chart of 20 by 20.
- Interpret and solve the Problems.

**QUANTITATIVE
REASONING: **Solve quantitative aptitude on Problems involving square and
Square root of numbers.

**WEEK
3 CONTENTS: DIVISION OF TWO OR 3 DIGIT BY**

**NUMBERS UP TO 9 WITHOUT A REMINDER.****MULTIPLE OF 10 UP TO 50.**

** LESSON OBJECTIVE**:
Pupils should be able to:

- Divide 2 or 3
digit numbers by Number up to 9 with or without

Remainder. 144÷ 3 - Divide by multiple of 10 up to 50
- Appreciate equality of sharing Things like money, fruits, books in Everyday activities.
- Interpret and solve Problems on division.

Examples: –
Share 75 nuts among 5 children, how many nuts does each child get?

Total nuts = 75

Total children = 5

each child gets = 75/5

= 15 nuts each

**QUANTITATIVE
REASONING: **Solve quantitative aptitude Problems involving division of Whole
numbers.

**WEEK
4 CONTENTS**

**COMMON MULTIPLES OF NUMBERS UP TO 9.****LCM OF NUMBERS.**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Write out
multiples of Numbers up to 9 e.g.

2 = 2, 4, 6, 8, 10, 12, – – – –

3 = 3, 6, 9, 12, 15, 18 – – – -. - Identify
common multiples in numbers e.g. from up we

Have 6 and 12. - Calculate the
least common Multiple of numbers.

Multiples of 3 are

3,6,9,12,15,18,21,24, – – – –

Multiple of 4 are

4,8,12,16,20,24,28,32, – – – –

Common multiples of 3 and 4 are

12 and 24. The least common Multiple of 3 and 4 is 12 - Appreciate
the use of Common multiple in working out Things from various group e.g. what
is the smallest length of String that can be cut into pieces

of 4cm and 5cm without any remainder. **QUANTITATIVE REASONING:**Solve qualitative aptitude

Problems involving LCM of Two numbers up to 9. E.g. fill in The missing figures

5 = 5, 10, 15, 20, – – – – – – –

8 = 8, 16, 24, 32, – – – – – – –

**WEEK
5 CONTENTS**

**FACTORS OF NUMBER.****HCF OF 2 – DIGIT NUMBERS**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Find the
factors of numbers e.g. Write down all the factors of4 and 30

4 = 1, 2, 4

30 = 1, 2, 3, 5, 6, 10, 15, 30

Complete the following;

27 = 1, 3, – – – –

18 =1, 2, – – – -. - Find all the
common factors and HCF of 15 and 20

15 = 1, 3, 5, 15,

20 = 1, 2, 4, 5, 10, 20

CF = 1 and 5

Highest common factor(HCF)=5

**QUANTITATIVE
REASONING: **Solve quantitative aptitude Problems involving HCF of two Digit
numbers.

**WEEK
6 CONTENTS: ESTIMATION **

**LESSON
OBJECTIVE**: Pupils should be able to:

- Identify actual numbers
- Round-up of numbers
- Add round-up numbers Together
- Subtract round-up numbers
- Multiply round-up of numbers
- Divide round-up of numbers e.g.

99.7 + 59.5 = 100+6 = 160

198×29 = 200 ×30 = 6000

Appreciate the use of estimates in Everyday activities e.g. Find the difference
between the Estimate and actual sum of 59.8

And 49.6?

= (60+50) – (59.8+49.6)

= 110 – 109.4

= 0.6

**QUANTITATIVE
REASONING: **Solve quantitative aptitude Problems involving estimation e.g.
Circle the correct estimate for each of these.

**WEEK
7 CONTENT: MONEY**

**ADDITION OF MONEY.****SUBTRACTION OF MONEY.****THE USE OF MONEY IN EVERYDAY BUSINESS TRANSACTION.**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Solve
problems on addition of Money e.g.

₦ 4.80 + ₦5.10 = ₦ 9.90

₦4.80

₦5.10

₦ 9.90 - Solve
problems on Subtraction of money e.g.

₦ 8.56 – ₦3.34 = ₦5.22

₦8.56

₦3.34

₦5.22 - Make use of
naira and kobo to Calculate sales (shopping) in Everyday business transactions.
e.g.

(a). Bola bought packet of pencil For ₦50.52, a book for ₦28.32

And an eraser for ₦5.00, how Much did he spend?

(b). A man went to the market with ₦ 90.50. if he spent ₦25.76 on a Book, how much balance did he Collect?

**QUANTITATIVE
REASONING: **Give exercises on quantitative

Reasoning.

**WEEK
8 CONTENT: **Multiplication of Whole
numbers**.**

- Multiplication of Money by a whole Number.
- Word problems on Multiplication of money.

**LESSON
OBJECTIVE**: Pupils should be able to:

- Multiply money by a whole Number.
- Apply multiplication of items in Real life situation e.g. find the cost Of 5 school chairs at ₦500 per Chair.

**QUANTITATIVE
REASONING: **Give exercises on quantitative

Reasoning.

**WEEK
9 CONTENT: **

**DIVISION OF MONEY BY A WHOLE NUMBER.****WORD PROBLEM ON DIVISION OF MONEY.**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Divide money by a whole e.g. ₦7.50 : 5
- Appreciate division of things in Real life situation e.g. A worker earn ₦1536.00 in a year. How much does he earn in a Month?

**QUANTITATIVE
REASONING: **Give examples on
quantitative.

**WEEK
10 CONTENT: PROFIT AND LOSS.**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Calculate
profit on a good sold e.g. Cost prince (CP) = ₦2.50

Selling price (SP) =₦3.10

Gain/Profit = SP−CP= ₦(3.10−2.50)

= ₦0.60 or 60 kobo - Calculate
loss on a good sold e.g. Cost prince = ₦20.40

Selling prince = ₦18.59

Loss = CP –SP = ₦20.40−₦18.59

= ₦1.81

Calculate the
cost price of a good sold at a particular profit or loss e.g.

Cp=? ; SP= ₦20.00; loss = ₦2.10

Cp=? ; SP= ₦50.40; Profit = ₦5.30

- Calculate the selling price of a Good sold at a particular profit or loss

e.g. CP= ₦70.30

SP=?

Loss =₦6.15

CP=₦40.37

SP=?

Profit=₦8.13

- Subtract two proper fractions.
- Add proper fraction and Mixed numbers.
- Subtract proper fractions and mixed numbers.

**Quantitative Aptitude:** Solve quantitative
aptitude.

**WEEK
11 CONTENT: OPEN SENTENCES**

**LESSON
OBJECTIVE**: Pupils should be able to:

- Define open
sentences as the Mathematical statements that involve

the equality sign (at this level) and a Missing quantity (represented) with an empty box). Open sentences Involves the four arithmetic Operations: Addition, subtraction, Multiplication and division.

**QUANTITATIVE REASONING:** Solve problems on quantitative.

**WEEK
11: REVISION OF SECOND TERMS WORKS**

**WEEK
13: EXAMINATION**