# Lesson Notes By Weeks and Term - Primary 6

Place value

Week 1

Subject:     Mathematics

Topic:     Place value

Duration:     40 mins

Reference:     Macmillian Champion primary mathematics schools book 6

Objective:     At the end of the lesson, pupils should be able to recognize the place value of each digit in a given number.

Content

Value and place value of a digit in a whole number

Example: What is the place value of each digit 2865731?

2    8    6    5    7    3    1

M    H.TH    T.TH    TH    H    T    U

 Digit Value Word form 2 2 000 000 Two Million 8 800 000 Eight hundred thousand 6 60 000 Sixty thousand 5 5 000 Five thousand 7 700 Seven hundred 3 30 Thirty 1 1 One

Value and place value of a digit in a decimal fraction

Example: What is the value of each of the digits in 32.476

Solution

3    2    .    4    7    6

T    U        110    1100    11000

 Digit Value Word form 3 30 Thirty 2 2 Two 4 410=0.4 Four-tenth 7 7100=0.07 Seven-hundredth 6 61000=0.006 Six-thousandth

Estimation and Approximation

Examples

1. 2.85        correct to 2 decimal places

7.24 Ω 7.2        correct to 1 decimal places

63.5 Ω 64        correct to the nearest whole number

4685 Ω 4700        correct to the nearest hundred

8348 Ω 8000        correct to the nearest thousand

Correct 774 000 to the nearest hundred thousand

7    7    4    0    0    0

H.Th    T.TH    T    H    T    U

800 000

774 000 Ω 800 000

Examples: convert to decimal fractions

1. 410=4=0.4
2. 85100=85=0.85
3. 2341000=234=0.234

Presentation:

Step 1:Teacher revises previous lesson with pupils.

Step 2: Teacher introduces and solve question to the new topic.

Step 3: Pupils are allowed to ask questions.

Step 4: Teacher writes questions under evaluation to pupils to solve.

Evaluation

1. Give the value of each digit in 834 560.
2. Give the value of each digit in 27.95
3. Correct 4.248 to two decimal places
4. Correct 6.75 to the nearest whole number
5. Correct 52989 to the nearest thousand