Mathematics - Primary 5 - Whole Numbers

Term: 1^st Term

Week 1

Class: Primary 5
Age: 10 years
Duration: 40 minutes of 5 periods
Date:
Subject: Mathematics
Topic: Whole Numbers

SPECIFIC OBJECTIVES:

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

Count in thousands and millions.
Use an abacus to form given numbers.
Categorize the value of a digit in a whole number from a given set of digits in decimal numbers or whole numbers.
Compare and order whole numbers up to 100,000.
Round up to the nearest 10,000.
Apply counting of large numbers in real-life problems.
Solve quantitative aptitude problems related to place value and whole numbers.

INSTRUCTIONAL TECHNIQUES:

Demonstration
Group activities
Problem-solving approach
Use of teaching aids (abacus, charts, etc.)
Interactive discussions

INSTRUCTIONAL MATERIALS:

Abacus
Chart with place value tables
Flashcards with large numbers
Markers, whiteboard, and erasers
Worksheet for exercises
Real-life objects (such as toys, books, etc.) to explain large numbers

INSTRUCTIONAL PROCEDURES:

PERIOD 1 and 2:

PRESENTATION

Step	Teacher’s Activity	Pupil’s Activity
STEP 1 – INTRODUCTION	Introduces the topic by explaining what whole numbers are, followed by discussing counting in thousands and millions.	Pupils listen and ask questions for clarification.
STEP 2 – EXPLANATION	Demonstrates how to form numbers in the thousands and millions using the abacus.	Pupils observe the demonstration and practice forming numbers on their abacus.
STEP 3 - DEMONSTRATION	Demonstrates categorizing the value of a digit in whole numbers and decimal numbers, using examples.	Pupils categorize digits in given numbers from flashcards.
STEP 4 - NOTE TAKING	Explains the concept of place value, then pupils take notes.	Pupils take notes on place value and counting large numbers.

NOTE (On the Board):
Counting in Thousands and Millions:

1,000 = 1 thousand
10,000 = 10 thousand
100,000 = 100 thousand
1,000,000 = 1 million
Example: "Count from 1 to 1,000,000"

Using the Abacus:

1st digit = thousands, 2nd digit = ones, etc.
Example: "Form the number 1,456 using the abacus"

Place Value in Large Numbers:

Thousands, Ten Thousands, Hundred Thousands, Millions
Example: 45,678 → 4 ten-thousands, 5 thousands, 6 hundreds, 7 tens, 8 ones

Exercise:

Write numbers in expanded form: 56,789 = 50,000 + 6,000 + 700 + 80 + 9

EVALUATION:

Ask pupils to explain how to categorize a digit’s value in a given number.
Solve problems on ordering and comparing large numbers.

CLASSWORK:

Write numbers in their expanded form using the abacus.

ASSIGNMENT:

Write 10 large numbers and classify the place values of digits in them.

CONCLUSION:
The teacher commends the pupils positively for their participation in the lesson.

PERIOD 3 and 4:

PRESENTATION

Step	Teacher’s Activity	Pupil’s Activity
STEP 1 – INTRODUCTION	Recap the previous lesson on place value and move into comparing and ordering whole numbers.	Pupils recall place value and participate in a brief discussion.
STEP 2 – EXPLANATION	Explains how to compare and order numbers up to 100,000 using symbols (> and <).	Pupils listen and take notes on the symbols for comparison.
STEP 3 - DEMONSTRATION	Demonstrates comparing and ordering different numbers up to 100,000 with examples on the board.	Pupils observe and assist the teacher in comparing and ordering numbers.
STEP 4 - NOTE TAKING	Students take notes on how to compare and order numbers up to 100,000.	Pupils take notes on the procedure for comparing and ordering numbers.

NOTE (On the Board):
Comparing and Ordering Whole Numbers:

Symbols:

means "greater than"
< means "less than"
= means "equal to"

Example: 45,678 > 34,567
Example: Order 23,000; 32,000; 11,000 from least to greatest.
Exercise:

Compare and order: 12,345; 23,456; 34,567; 45,678; 56,789

EVALUATION:

Ask pupils to compare and order numbers from 1 to 100,000 on the board.
Provide examples for pupils to practice.

CLASSWORK:

Compare and order five given numbers (up to 100,000).
Solve a word problem involving ordering large numbers.

ASSIGNMENT:

Round five numbers to the nearest 10,000 and show the steps.

CONCLUSION:
The teacher commends the pupils positively and encourages them to practice comparing and ordering numbers.

PERIOD 5:

PRESENTATION

Step	Teacher’s Activity	Pupil’s Activity
STEP 1 – INTRODUCTION	Introduces rounding up numbers to the nearest 10,000.	Pupils listen and engage in a short discussion on rounding numbers.
STEP 2 – EXPLANATION	Explains how to round numbers up to the nearest 10,000, with examples on the board.	Pupils watch and take notes.
STEP 3 - DEMONSTRATION	Demonstrates how to round various numbers, using real-life examples (e.g., population of a city).	Pupils follow along and round numbers provided on the board.
STEP 4 - NOTE TAKING	Pupils take notes on the rounding rules and steps.	Pupils write down the rules for rounding numbers to the nearest 10,000.

NOTE (On the Board):
Rounding Numbers to the Nearest 10,000:

Look at the thousands digit.
If it is 5 or more, round up; if it is 4 or less, round down.
Example: 48,567 → rounded to nearest 10,000 = 50,000
Example: 123,456 → rounded to nearest 10,000 = 120,000
Exercise:

Round the following numbers: 46,785 → 50,000; 123,456 → 120,000

EVALUATION:

Ask pupils to round the following numbers to the nearest 10,000: 47,000, 123,456, 91,500, 18,200.
Provide real-life examples for rounding numbers.

CLASS ACTIVITY:

Use real-life data (like population, distance, etc.) to practice rounding.

CLASSWORK:

Complete a worksheet on rounding numbers to the nearest 10,000.

ASSIGNMENT:

Find five large numbers from newspapers or books and round them to the nearest 10,000.

CONCLUSION:
The teacher commends the pupils positively for their active participation and encourages them to keep practicing rounding.

SUMMARY OF LESSON:

This week, the pupils will learn about whole numbers, including counting in thousands and millions, comparing and ordering large numbers, rounding up to the nearest 10,000, and applying counting techniques to real-life problems. They'll use tools like the abacus and practice these concepts through interactive activities and exercises.