Numbers

Number Concept - Arranging objects according to size

By the end of the lesson, the learner should be able to:

- Arrange objects from the smallest to the largest
- Compare objects of different sizes
- Show interest in ordering objects

- In pairs/groups, collect 10 small stones of different sizes and arrange them from the smallest to the largest
- Discuss and share their arrangements with other groups
- Observe pictures of apples arranged from smallest to largest
- Arrange objects in their class in order of size from smallest to largest

How do we arrange objects according to size?

KLB Mathematical Activities Grade Three pg. 1
- Small stones of different sizes
- Objects in the classroom

- Observation - Oral questions - Written exercises

Numbers

Number Concept - Arranging objects according to size
Number Concept - Identifying position of objects from 1st to 20th
Number Concept - Identifying position of objects from 1st to 20th

By the end of the lesson, the learner should be able to:

- Arrange objects from the largest to the smallest
- Use appropriate vocabulary to describe size
- Show appreciation for order in the environment

- In pairs/groups, arrange six cards of different sizes from the largest to the smallest
- Match objects according to size from the largest to the smallest in tables
- Work in groups to arrange objects like cups, toy elephants, and houses according to size

How do we arrange objects from the largest to the smallest?

KLB Mathematical Activities Grade Three pg. 3
- Cards of different sizes
- Pictures of objects of different sizes
KLB Mathematical Activities Grade Three pg. 4
- Pictures showing positions
- Playing field for races
KLB Mathematical Activities Grade Three pg. 5
- Charts showing positions
- Cards with position numbers and words

- Observation - Oral questions - Written exercises

Numbers

Number Concept - Writing positions in number symbols and words
Number Concept - Application of ordinal numbers in real life situations

By the end of the lesson, the learner should be able to:

- Identify positions from 11th to 20th
- Write positions from 11th to 20th in number symbols
- Demonstrate interest in ordinal numbers

- Write letters of the alphabet in order from K to T
- Write the positions in symbols for each letter in the alphabet
- Learn that "eleventh" is written as 11th, "twelfth" as 12th, etc.
- Match positions written in words with their number symbols

How do we write positions from eleventh to twentieth?

KLB Mathematical Activities Grade Three pg. 6
- Alphabet cards
- Position cards
KLB Mathematical Activities Grade Three pg. 7
- Position word cards
- Objects of different sizes
- Pictures showing positions
KLB Mathematical Activities Grade Three pg. 8
- Charts showing daily routines
- Calendar showing months of the year

- Observation - Oral questions - Written assignments

Numbers

Number Concept - Application of ordinal numbers in real life situations
Whole Numbers - Counting forward up to 1000 from any point

By the end of the lesson, the learner should be able to:

- Use ordinal numbers to describe the birth order in a family
- Apply ordinal numbers in competitions
- Value the importance of ordinal numbers in real life

- Share birth orders in their families using ordinal numbers
- Role-play competitions and identify positions of participants
- Discuss scenarios where ordinal numbers are used in daily life
- Create stories involving ordinal numbers

When do we use ordinal numbers in our daily lives?

KLB Mathematical Activities Grade Three pg. 8
- Pictures showing positions in competitions
- Stories involving ordinal numbers
KLB Mathematical Activities Grade Three pg. 19
- Number charts
- Number cards

- Observation - Oral questions - Written assignments

Numbers

Whole Numbers - Counting forward up to 1000 from any point
Whole Numbers - Counting backward in multiples of 100 from 1000

By the end of the lesson, the learner should be able to:

- Count forward from 100 to 500
- Count in tens and hundreds
- Enjoy counting larger numbers

- Count forward in sequences: 100, 101, 102... to 110
- Count in tens: 200, 210, 220... to 300
- Count in hundreds: 100, 200, 300, 400, 500
- Complete number sequences with missing numbers

How do we count forward from 100 to 500?

KLB Mathematical Activities Grade Three pg. 20
- Number charts
- Number cards
- Counters
KLB Mathematical Activities Grade Three pg. 24
- Rope for skipping

- Observation - Oral counting - Written exercises

Numbers

Whole Numbers - Counting backward in multiples of 100 from 1000
Whole Numbers - Place value of numbers up to hundreds

By the end of the lesson, the learner should be able to:

- Count backward from 1000 to 500 in multiples of 100
- Count backward in multiples of 100 from any point
- Appreciate counting backward

- Take six cards with numbers 500-1000 and arrange them in descending order
- Count backward in hundreds: 1000, 900, 800, 700, 600, 500
- Count backward from different starting points in multiples of 100
- Complete number sequences with missing numbers

How do we count backward in hundreds from any number?

KLB Mathematical Activities Grade Three pg. 24
- Number cards
- Number charts
- Counters
- Abacus
- Place value charts
- Base ten blocks

- Observation - Oral counting - Written exercises

Numbers

Whole Numbers - Place value of numbers up to hundreds

By the end of the lesson, the learner should be able to:

- Identify place value of numbers up to hundreds
- Represent 3-digit numbers on an abacus
- Appreciate the importance of place value

- Identify how many ones, tens, and hundreds are shown on an abacus
- Represent 3-digit numbers on an abacus
- Complete sentences like "248 is _ hundreds _ tens _ ones"
- Write numbers represented on an abacus

How can we identify the place value of each digit in a 3-digit number?

KLB Mathematical Activities Grade Three pg. 26
- Abacus
- Place value charts
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Place value of numbers up to hundreds
Whole Numbers - Reading numbers 1 to 1000 in symbols

By the end of the lesson, the learner should be able to:

- Write a number in hundreds, tens, and ones
- Show numbers on place value charts
- Value the importance of place value in representing numbers

- Draw place value charts and represent numbers on them
- Write numbers in hundreds, tens, and ones (e.g., 468 is 4 hundreds 6 tens 8 ones)
- Identify the place value of each digit in a number
- Complete sentences about place values

How do we write numbers showing their place values?

KLB Mathematical Activities Grade Three pg. 30
- Place value charts
- Abacus
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 33
- Number charts
- Number cards
- Flash cards

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Reading numbers 1 to 1000 in symbols

By the end of the lesson, the learner should be able to:

- Read numbers 501 to 1000 in symbols
- Write numbers 501 to 1000 in symbols
- Show enthusiasm in reading large numbers

- Write numbers on cards: 573, 592, 601, 659, 725, 748, 876, 998
- Read the numbers correctly
- Read numbers like 503 as "five hundred three"
- Practice reading various 3-digit numbers

How do we read numbers from 501 to 1000?

KLB Mathematical Activities Grade Three pg. 34
- Number charts
- Number cards
- Flash cards

- Observation - Oral reading - Written exercises

Numbers

Whole Numbers - Reading and writing numbers 1 to 100 in words

By the end of the lesson, the learner should be able to:

- Read numbers 1 to 50 in words
- Write numbers 1 to 50 in words
- Appreciate writing numbers in words

- Write five numbers between 1 and 50 on cards
- Read the numbers in turns
- Write the numbers in words
- Read and write numbers like 12 as "twelve" and 43 as "forty-three"

How do we write numbers from 1 to 50 in words?

KLB Mathematical Activities Grade Three pg. 35
- Number cards
- Word cards
- Flash cards
KLB Mathematical Activities Grade Three pg. 36

- Observation - Oral reading - Written exercises

Numbers

Whole Numbers - Reading and writing numbers 1 to 100 in words

By the end of the lesson, the learner should be able to:

- Read and write numbers 1 to 100 in words
- Match numbers in symbols with their words
- Show enthusiasm for writing numbers in words

- Match number symbols with their corresponding words
- Fill in missing words in number names
- Write given numbers in words
- Read numbers written in words

How do we match numbers in symbols with their words?

KLB Mathematical Activities Grade Three pg. 36
- Number cards
- Word cards
- Matching games

- Observation - Oral reading - Written exercises

Numbers

Whole Numbers - Identifying missing numbers in patterns up to 1000

By the end of the lesson, the learner should be able to:

- Identify number patterns from 1 to 100
- Find missing numbers in patterns
- Show interest in number patterns

- Write numbers 1 to 20 on cards and arrange them to form different patterns
- Find missing numbers in sequences like 72, 73, 74, 75, _, _
- Identify the rule in patterns (e.g., adding 1, 5, or 10)
- Create their own number patterns

How do we identify the rule in a number pattern?

KLB Mathematical Activities Grade Three pg. 37
- Number cards
- Number charts
KLB Mathematical Activities Grade Three pg. 38

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Identifying missing numbers in patterns up to 1000

By the end of the lesson, the learner should be able to:

- Identify number patterns from 501 to 1000
- Find missing numbers in patterns
- Appreciate number patterns with large numbers

- Find missing numbers in sequences like 640, 650, 660, _, _
- Identify patterns counting backward: 781, 780, 779, _, _
- Identify patterns counting by hundreds: 510, 610, 710, _, _
- Create their own number patterns within this range

How do we find missing numbers in patterns from 501 to 1000?

KLB Mathematical Activities Grade Three pg. 39
- Number cards
- Number charts

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Creating number patterns up to 1000

By the end of the lesson, the learner should be able to:

- Create number patterns with specific rules
- Identify the rule in number patterns
- Enjoy creating and solving number patterns

- Create patterns starting from given numbers with specific rules
- Create patterns like "Starting from 5, add 3" to get 5, 8, 11, 14, 17
- Identify rules in given patterns (e.g., add 5, add 10, etc.)
- Share patterns with classmates and solve each other's patterns

How do we create our own number patterns?

KLB Mathematical Activities Grade Three pg. 40
- Number cards
- Number charts
- Worksheets
- Pattern examples

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Playing games involving number patterns

By the end of the lesson, the learner should be able to:

- Play games involving number patterns
- Identify patterns in games
- Show enthusiasm for mathematical games

- Play number pattern games in groups
- Take turns creating and continuing patterns
- Use pattern cards for matching games
- Create their own number pattern games

How can we use games to learn about number patterns?

KLB Mathematical Activities Grade Three pg. 40
- Number pattern cards
- Game boards
- Pattern puzzles
- Digital devices (if available)
- Environmental patterns
- Craft materials

- Observation - Practical tasks - Peer assessment

Numbers

Whole Numbers - Playing games involving number patterns

By the end of the lesson, the learner should be able to:

- Play games involving counting forward and backward
- Create counting games
- Show interest in mathematical games

- Play counting games (e.g., count by 2s, 5s, or 10s)
- Play "What comes next?" with number sequences
- Create their own counting games
- Play games involving counting forward and backward

How can we use games to practice counting?

KLB Mathematical Activities Grade Three pg. 40
- Number cards
- Counting games
- Game materials

- Observation - Practical tasks - Peer assessment

Numbers

Addition - Adding a 3-digit number to a 2-digit number without regrouping

By the end of the lesson, the learner should be able to:

- Add a 3-digit number to a 2-digit number without regrouping
- Use place value charts for addition
- Show enthusiasm in addition

- Show 475 on an abacus and add 23 by putting 3 rings in the ones spike and 2 in the tens spike
- Practice vertical addition: 435 + 12 = 447
- Use place value charts to show addition
- Solve word problems involving such addition

How do we add a 3-digit number to a 2-digit number?

KLB Mathematical Activities Grade Three pg. 46
- Abacus
- Place value charts
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 48
- Number cards
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding a 3-digit number to a 2-digit number without regrouping

By the end of the lesson, the learner should be able to:

- Add a 3-digit number to a 1-digit number without regrouping
- Use an abacus to add numbers
- Show interest in addition

- Take an abacus and show 342 on it
- Put 6 rings in the ones spike and observe the result
- Practice vertical addition: 214 + 5 = 219
- Work on exercises involving addition of 3-digit and 1-digit numbers

How do we add a 3-digit number and a 1-digit number?

KLB Mathematical Activities Grade Three pg. 43
- Abacus
- Place value charts
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding a 3-digit number to a 2-digit number with single regrouping

By the end of the lesson, the learner should be able to:

- Add a 3-digit number to a 2-digit number with regrouping from ones to tens
- Use place value charts for addition with regrouping
- Show enthusiasm in solving addition problems

- Draw a place value chart and show 567 + 28
- Add ones (7 + 8 = 15) and regroup as 1 ten and 5 ones
- Add tens including the regrouped ten
- Solve word problems involving such addition

How do we regroup from ones to tens when adding?

KLB Mathematical Activities Grade Three pg. 52
- Place value charts
- Abacus
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 54
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding a 3-digit number to a 2-digit number with single regrouping

By the end of the lesson, the learner should be able to:

- Add with regrouping from tens to hundreds
- Use place value charts for addition
- Show interest in addition with regrouping

- Add 451 + 82 vertically
- Add ones: 1 + 2 = 3
- Add tens: 5 + 8 = 13, regroup as 1 hundred and 3 tens
- Add hundreds including the regrouped hundred
- Solve exercises with similar addition

How do we regroup from tens to hundreds when adding?

KLB Mathematical Activities Grade Three pg. 55
- Place value charts
- Abacus
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding two 3-digit numbers without regrouping

By the end of the lesson, the learner should be able to:

- Add two 3-digit numbers without regrouping
- Use place value charts for addition
- Show interest in adding larger numbers

- Practice vertical addition: 403 + 245 = 648
- Add ones, tens, and hundreds separately
- Use place value charts to demonstrate addition
- Solve word problems involving addition of two 3-digit numbers

How do we add two 3-digit numbers?

KLB Mathematical Activities Grade Three pg. 59
- Place value charts
- Abacus
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 60
- Number cards
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding two 3-digit numbers without regrouping

By the end of the lesson, the learner should be able to:

- Add two 3-digit numbers with zeros
- Apply addition strategies appropriately
- Show interest in addition with zeros

- Practice addition with zeros: 300 + 200 = 500
- Add numbers like 207 + 302 = 509
- Use place value charts to show the role of zeros in addition
- Create their own addition problems with zeros

How do zeros affect addition?

KLB Mathematical Activities Grade Three pg. 60
- Place value charts
- Number cards
- Base ten blocks
- Worksheets

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding two 3-digit numbers with single regrouping

By the end of the lesson, the learner should be able to:

- Add two 3-digit numbers with regrouping from ones to tens
- Use place value charts for addition with regrouping
- Show enthusiasm in solving addition problems

- Draw a place value chart and show 637 + 248
- Add ones (7 + 8 = 15) and regroup as 1 ten and 5 ones
- Add tens including the regrouped ten
- Add hundreds
- Solve similar addition problems

How do we add two 3-digit numbers with regrouping from ones to tens?

KLB Mathematical Activities Grade Three pg. 61
- Place value charts
- Abacus
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding two 3-digit numbers with single regrouping

By the end of the lesson, the learner should be able to:

- Add two 3-digit numbers horizontally with regrouping
- Apply addition in solving problems
- Value addition in daily activities

- Practice horizontal addition: 538 + 297 = 835
- Add ones with regrouping
- Add tens and hundreds
- Solve word problems involving addition with regrouping
- Share solution strategies with peers

How can we solve horizontal addition problems with regrouping?

KLB Mathematical Activities Grade Three pg. 62
- Place value charts
- Abacus
- Word problem cards
KLB Mathematical Activities Grade Three pg. 63
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding two 3-digit numbers with single regrouping

By the end of the lesson, the learner should be able to:

- Add horizontally with regrouping from tens to hundreds
- Apply addition in solving problems
- Appreciate addition in daily life

- Practice horizontal addition: 581 + 294 = 875
- Add ones: 1 + 4 = 5
- Add tens with regrouping: 8 + 9 = 17
- Add hundreds including the regrouped hundred
- Solve word problems involving such addition

How can we add horizontally when regrouping from tens to hundreds is needed?

KLB Mathematical Activities Grade Three pg. 64
- Place value charts
- Abacus
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Addition - Creating number patterns involving addition up to 1000

By the end of the lesson, the learner should be able to:

- Identify patterns involving addition
- Find missing numbers in addition patterns
- Show interest in number patterns

- Find missing numbers in patterns like 20 + □ = 24, 24 + □ = 28
- Identify the rule in addition patterns (e.g., add 4, add 10)
- Complete patterns like 50 + □ = 60, 60 + □ = 70
- Create their own addition patterns

How do we identify the rule in addition patterns?

KLB Mathematical Activities Grade Three pg. 66
- Number cards
- Number charts
- Worksheets
KLB Mathematical Activities Grade Three pg. 67

- Observation - Oral questions - Written exercises

Numbers

Addition - Creating number patterns involving addition up to 1000

By the end of the lesson, the learner should be able to:

- Find missing numbers in addition patterns
- Apply pattern rules to find missing numbers
- Appreciate patterns in mathematics

- Find missing numbers in patterns like 50, 70, 90, _, _, _
- Identify the rule (add 20) and complete the pattern: 110, 130, 150
- Find missing numbers in various patterns with different rules
- Share strategies for identifying pattern rules

How do we find missing numbers in addition patterns?

KLB Mathematical Activities Grade Three pg. 68
- Number cards
- Number charts
- Worksheets

- Observation - Oral questions - Written exercises

Numbers

Addition - Creating number patterns involving addition up to 1000

By the end of the lesson, the learner should be able to:

- Create number patterns with addition rules
- Apply specific rules to create patterns
- Show creativity in making patterns

- Create patterns with specific rules, e.g., "Starting from 5, add 3" to get 5, 8, 11, 14, 17
- Create patterns starting from different numbers with various rules
- Exchange patterns with peers and identify the rules
- Design pattern puzzles for classmates to solve

How do we create our own addition patterns with specific rules?

KLB Mathematical Activities Grade Three pg. 69
- Number cards
- Number charts
- Worksheets
- Pattern examples

- Observation - Oral questions - Written exercises

Numbers

Addition - Practicing addition using digital devices or other resources

By the end of the lesson, the learner should be able to:

- Use digital devices for addition
- Apply addition skills in various contexts
- Appreciate technology in learning mathematics

- Use digital devices (calculators, tablets, computers) to practice addition
- Play digital games involving addition of numbers
- Compare manual calculation with digital calculation
- Solve addition problems using both methods

How can we use digital devices to practice addition?

KLB Mathematical Activities Grade Three pg. 69
- Calculators
- Tablets/computers (if available)
- Digital mathematical games

- Observation - Practical tasks - Digital assessments

Numbers

Addition - Practicing addition using digital devices or other resources

By the end of the lesson, the learner should be able to:

- Use various resources for addition
- Solve addition problems using different tools
- Value different approaches to addition

- Use manipulatives (counters, abacus, base ten blocks) for addition
- Use number charts and number lines for addition
- Create addition games using available resources
- Solve addition problems using preferred resources

What resources can we use to practice addition?

KLB Mathematical Activities Grade Three pg. 69
- Counters
- Abacus
- Base ten blocks
- Number charts
- Number lines
- Manipulatives
- Number cards
- Game boards
- Worksheets

- Observation - Practical tasks - Oral questions

Numbers

Subtraction - Subtracting a 2-digit number from a 3-digit number without regrouping

By the end of the lesson, the learner should be able to:

- Subtract a single-digit number from a 3-digit number without regrouping
- Use place value charts for subtraction
- Show interest in subtraction

- Observe demonstration of subtraction on an abacus: 278 - 5 = 273
- Subtract vertically with place value understanding
- Practice similar subtraction problems
- Solve word problems involving such subtraction

How do we subtract a single-digit number from a 3-digit number?

KLB Mathematical Activities Grade Three pg. 76
- Abacus
- Place value charts
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 78

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting a 2-digit number from a 3-digit number without regrouping

By the end of the lesson, the learner should be able to:

- Subtract horizontally without regrouping
- Apply subtraction in solving problems
- Value different methods of subtraction

- Practice horizontal subtraction: 584 - 21 = 563
- Relate vertical and horizontal subtraction
- Solve word problems involving subtraction
- Share solution strategies with peers

What are the different ways to subtract numbers?

KLB Mathematical Activities Grade Three pg. 79
- Place value charts
- Number cards
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting a 2-digit number from a 3-digit number with single regrouping

By the end of the lesson, the learner should be able to:

- Subtract with regrouping from tens to ones
- Use an abacus for subtraction with regrouping
- Show enthusiasm in learning subtraction

- Work in groups to subtract 764 - 9 using an abacus
- Recognize that 9 cannot be directly subtracted from 4
- Take one ring from tens spike and convert to 10 rings in ones spike
- Subtract 9 from 14 to get 5
- Practice similar subtraction problems

How do we regroup when subtracting a single-digit number?

KLB Mathematical Activities Grade Three pg. 83
- Abacus
- Place value charts
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 86

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting a 2-digit number from a 3-digit number with single regrouping

By the end of the lesson, the learner should be able to:

- Subtract with regrouping from hundreds to tens
- Use place value charts
- Show enthusiasm in subtraction

- Work out subtraction: 526 - 41
- Subtract ones: 6 - 1 = 5
- Recognize that 4 cannot be directly subtracted from 2
- Regroup 1 hundred as 10 tens, adding to 2 tens to get 12 tens
- Subtract 4 from 12 to get 8 tens
- Practice similar problems

How do we regroup from hundreds to tens when subtracting?

KLB Mathematical Activities Grade Three pg. 89
- Place value charts
- Abacus
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting a 3-digit number from a 3-digit number with single regrouping

By the end of the lesson, the learner should be able to:

- Subtract a 3-digit number from a 3-digit number without regrouping
- Use an abacus for subtraction
- Show interest in subtraction

- Work in groups to subtract 375 - 124 using an abacus
- Take away 4 rings from ones spike, 2 rings from tens spike, and 1 ring from hundreds spike
- Practice similar subtraction problems
- Solve word problems involving such subtraction

How do we subtract one 3-digit number from another?

KLB Mathematical Activities Grade Three pg. 80
- Abacus
- Place value charts
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 92

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting a 3-digit number from a 3-digit number with single regrouping

By the end of the lesson, the learner should be able to:

- Subtract with regrouping from hundreds to tens
- Use place value charts
- Show enthusiasm in subtraction

- Work out subtraction: 518 - 294 = 224
- Subtract ones: 8 - 4 = 4
- Recognize that 9 cannot be directly subtracted from 1
- Regroup 1 hundred as 10 tens, adding to 1 ten to get 11 tens
- Subtract 9 from 11 to get 2 tens
- Subtract 2 from 4 hundreds to get 2 hundreds
- Practice similar problems

How do we regroup from hundreds to tens when subtracting 3-digit numbers?

KLB Mathematical Activities Grade Three pg. 94
- Place value charts
- Abacus
- Base ten blocks

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting a 3-digit number from a 3-digit number with single regrouping
Subtraction - Subtracting up to 3-digit numbers involving missing numbers with single regrouping

By the end of the lesson, the learner should be able to:

- Subtract 3-digit numbers horizontally with regrouping
- Apply subtraction in solving problems
- Value different subtraction methods

- Practice horizontal subtraction with regrouping
- Compare vertical and horizontal subtraction
- Solve word problems involving subtraction with regrouping
- Share solution strategies with peers

How can we subtract 3-digit numbers horizontally with regrouping?

KLB Mathematical Activities Grade Three pg. 96
- Place value charts
- Number cards
- Word problem cards
KLB Mathematical Activities Grade Three pg. 97
- Worksheets
- Place value charts

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting up to 3-digit numbers involving missing numbers with single regrouping

By the end of the lesson, the learner should be able to:

- Solve subtraction with missing minuends
- Apply inverse operations
- Value mathematical puzzles

- Solve problems like: □ - 5 = 315
- Use addition to find the missing minuend
- Create their own puzzles with missing minuends
- Share solution strategies with peers

How do we find a missing minuend in subtraction?

KLB Mathematical Activities Grade Three pg. 97
- Number cards
- Worksheets
- Place value charts

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Subtracting up to 3-digit numbers involving missing numbers with single regrouping

By the end of the lesson, the learner should be able to:

- Solve subtraction with missing subtrahends
- Apply inverse operations
- Show enthusiasm for mathematical puzzles

- Solve problems like: 320 - □ = 315
- Use subtraction to find the missing subtrahend
- Create their own puzzles with missing subtrahends
- Share solution strategies with peers

How do we find a missing subtrahend in subtraction?

KLB Mathematical Activities Grade Three pg. 97
- Number cards
- Worksheets
- Place value charts
- Real-life scenarios

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Working out missing numbers in patterns involving subtraction up to 1000

By the end of the lesson, the learner should be able to:

- Find missing numbers in subtraction patterns
- Identify the rule in subtraction patterns
- Appreciate patterns in mathematics

- Complete patterns like: 90, 85, 80, _, _, _
- Identify the rule (subtract 5) and fill in: 75, 70, 65
- Work with various patterns with different rules
- Create their own subtraction patterns

How do we identify and complete subtraction patterns?

KLB Mathematical Activities Grade Three pg. 98
- Number charts
- Number cards
- Worksheets
KLB Mathematical Activities Grade Three pg. 99

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Working out missing numbers in patterns involving subtraction up to 1000

By the end of the lesson, the learner should be able to:

- Identify complex subtraction patterns
- Find missing numbers in patterns
- Value patterns in mathematics

- Identify patterns involving larger numbers
- Complete patterns like: 900, 850, 800, _, _, _
- Create their own patterns with specific rules
- Discuss patterns found in the environment

How do we identify patterns in larger numbers?

KLB Mathematical Activities Grade Three pg. 98
- Number charts
- Number cards
- Environmental patterns

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Applying subtraction in real-life situations

By the end of the lesson, the learner should be able to:

- Solve word problems involving subtraction
- Apply subtraction in real-life situations
- Value subtraction in daily life

- Solve problems like: "There were 865 seedlings in a tree nursery. The owner sold 425 seedlings. How many seedlings remained?"
- Identify relevant information in word problems
- Create their own word problems for peers to solve

How do we use subtraction to solve real-life problems?

KLB Mathematical Activities Grade Three pg. 102
- Word problem cards
- Real-life scenarios
- Pictures
KLB Mathematical Activities Grade Three pg. 103

- Observation - Oral questions - Written exercises

Numbers

Subtraction - Applying subtraction in real-life situations

By the end of the lesson, the learner should be able to:

- Apply subtraction in diverse contexts
- Solve practical subtraction problems
- Value subtraction in everyday life

- Identify real-life situations where subtraction is used
- Role-play scenarios involving subtraction (e.g., shopping)
- Create and solve subtraction problems from personal experiences
- Discuss how subtraction helps in daily life

How is subtraction useful in our daily activities?

KLB Mathematical Activities Grade Three pg. 103
- Real objects
- Role-play materials
- Pictures

- Observation - Practical tasks - Oral questions

Numbers

Multiplication - Modeling multiplication as repeated addition using numbers 1, 2, 3, 4 and 5 by 4 and 5

By the end of the lesson, the learner should be able to:

- Model multiplication as repeated addition
- Use counters to represent multiplication
- Show interest in learning multiplication

- Use counters to form groups as shown in pictures
- Count the total number of counters
- Represent multiplication as repeated addition: 5 + 5 + 5 = 15 is 3 × 5 = 15
- Practice similar exercises using counters

How can we represent multiplication using repeated addition?

KLB Mathematical Activities Grade Three pg. 104
- Counters
- Pictures showing groups
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 106
- Base ten blocks
- Number cards

- Observation - Practical tasks - Oral questions

Numbers

Multiplication - Multiplying a single digit number by a single digit number

By the end of the lesson, the learner should be able to:

- Multiply a single digit number by a single digit number
- Use repeated addition for multiplication
- Show enthusiasm for multiplication

- Use repeated addition to find products: 6 × 6 = 6 + 6 + 6 + 6 + 6 + 6 = 36
- Fill in gaps: 5 + 5 + 5 = _ × 5 = 15
- Create multiplication expressions for given repeated addition
- Solve simple multiplication problems

How do we find the product of two single-digit numbers?

KLB Mathematical Activities Grade Three pg. 107
- Counters
- Number cards
- Multiplication tables

- Observation - Oral questions - Written exercises

Numbers

Multiplication - Multiplying a single digit number by a single digit number

By the end of the lesson, the learner should be able to:

- Multiply single-digit numbers
- Use multiplication tables
- Value multiplication as a quick way to add equal groups

- Practice multiplying numbers like 4 × 3, 2 × 7, 6 × 8, etc.
- Use multiplication tables to find products
- Solve multiplication problems
- Create multiplication fact cards

How do we use multiplication tables to multiply single-digit numbers?

KLB Mathematical Activities Grade Three pg. 108
- Multiplication tables
- Number cards
- Counters
KLB Mathematical Activities Grade Three pg. 110
- Multiplication fact cards
- Word problem cards
- Game materials

- Observation - Oral questions - Written exercises

Numbers

Multiplication - Multiplying single digit numbers by 10

By the end of the lesson, the learner should be able to:

- Multiply single-digit numbers by 10
- Recognize patterns when multiplying by 10
- Show enthusiasm for multiplication

- Practice multiplying numbers by 10: 5 × 10 = 50, 6 × 10 = 60, etc.
- Identify the pattern when multiplying by 10 (add a zero)
- Complete exercises like 10 × 10 × 10 × 10 = 4 × _
- Solve multiplication problems involving 10

What happens when we multiply a number by 10?

KLB Mathematical Activities Grade Three pg. 111
- Place value charts
- Number cards
- Multiplication tables

- Observation - Oral questions - Written exercises

Numbers

Multiplication - Multiplying single digit numbers by 10

By the end of the lesson, the learner should be able to:

- Multiply various single-digit numbers by 10
- Apply multiplication by 10 in solving problems
- Appreciate multiplication by 10

- Practice multiplying single-digit numbers by 10
- Use the pattern of adding a zero when multiplying by 10
- Solve word problems involving multiplication by 10
- Create their own problems involving multiplication by 10

Why is it easy to multiply by 10?

KLB Mathematical Activities Grade Three pg. 112
- Place value charts
- Number cards
- Word problem cards
KLB Mathematical Activities Grade Three pg. 113
- Multiplication tables
- Game materials

- Observation - Oral questions - Written exercises

Numbers

Multiplication - Appreciating multiplication as repeated addition in daily life

By the end of the lesson, the learner should be able to:

- Apply multiplication in daily life
- Solve word problems involving multiplication
- Value multiplication in real-life situations

- Solve problems like "A cow has 4 legs. How many legs do 9 cows have?"
- Identify situations where multiplication is used
- Create their own word problems based on real-life scenarios
- Share their problems with peers

How is multiplication used in our daily lives?

KLB Mathematical Activities Grade Three pg. 117
- Word problem cards
- Pictures
- Real-life objects
- Real-life scenarios
- Role-play materials
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Division - Representing division as repeated subtraction (numbers up to 50 by 4 and 5)

By the end of the lesson, the learner should be able to:

- Represent division as repeated subtraction
- Use counters to model division
- Show interest in learning division

- Use counters to divide objects into equal groups
- Represent division as repeated subtraction: 20 ÷ 5 means subtract 5 from 20 repeatedly until 0 remains
- Count how many times 5 is subtracted
- Practice similar exercises with counters

How can we represent division as repeated subtraction?

KLB Mathematical Activities Grade Three pg. 118
- Counters
- Picture cards
- Number cards

- Observation - Practical tasks - Oral questions

Numbers

Division - Representing division as repeated subtraction (numbers up to 50 by 4 and 5)
Division - Dividing 2-digit numbers by single-digit numbers without remainder

By the end of the lesson, the learner should be able to:

- Divide numbers using repeated subtraction
- Model division as repeated subtraction
- Appreciate division as repeated subtraction

- Divide numbers like 20 ÷ 4 using repeated subtraction
- Count how many times the divisor is subtracted
- Use counters to model division
- Practice various division problems using repeated subtraction

How do we find how many groups we can make when dividing?

KLB Mathematical Activities Grade Three pg. 121
- Counters
- Number cards
- Worksheets
KLB Mathematical Activities Grade Three pg. 122

- Observation - Practical tasks - Written exercises

Numbers

Division - Dividing 2-digit numbers by single-digit numbers without remainder

By the end of the lesson, the learner should be able to:

- Divide 2-digit numbers by 7, 8, and 9
- Use repeated subtraction for division
- Value division in solving problems

- Divide numbers like 21 ÷ 7, 24 ÷ 8, 18 ÷ 9 using repeated subtraction
- Practice similar division problems
- Solve word problems involving division
- Create their own division problems

How do we divide a 2-digit number by a single-digit number?

KLB Mathematical Activities Grade Three pg. 123
- Counters
- Number cards
- Worksheets

- Observation - Oral questions - Written exercises

Numbers

Division - Dividing 2-digit numbers by 10 without remainder

By the end of the lesson, the learner should be able to:

- Divide 2-digit numbers by 10
- Recognize patterns when dividing by 10
- Show interest in division by 10

- Examine multiplication table to see division by 10
- Practice dividing numbers like 20 ÷ 10, 30 ÷ 10, 40 ÷ 10, etc.
- Identify the pattern when dividing by 10 (remove a zero)
- Solve division problems involving 10

What happens when we divide a 2-digit number by 10?

KLB Mathematical Activities Grade Three pg. 124
- Multiplication tables
- Number cards
- Worksheets
- Worksheets
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Division - Using division as repeated subtraction in real-life situations

By the end of the lesson, the learner should be able to:

- Apply division in daily life
- Solve word problems involving division
- Value division in real-life situations

- Solve problems like "John had 48 mangoes. He shared them equally among 6 children. How many mangoes did each get?"
- Identify situations where division is used
- Create their own word problems based on real-life scenarios
- Share their problems with peers

How is division used in our daily lives?

KLB Mathematical Activities Grade Three pg. 125
- Word problem cards
- Pictures
- Real-life objects

- Observation - Oral questions - Written exercises

Numbers

Division - Using division as repeated subtraction in real-life situations
Fractions - Identifying ½ as part of a whole

By the end of the lesson, the learner should be able to:

- Recognize division in various contexts
- Apply division skills appropriately
- Show enthusiasm for using division

- Identify real-life situations involving division
- Create stories or role-plays showing division
- Solve varied word problems involving division
- Discuss the advantages of using division instead of repeated subtraction

Why is division faster than repeated subtraction?

KLB Mathematical Activities Grade Three pg. 128
- Real-life scenarios
- Role-play materials
- Word problem cards
KLB Mathematical Activities Grade Three pg. 129
- Rectangular and circular cut-outs
- Manila papers
- Scissors
- Colored pencils

- Observation - Oral questions - Written exercises

Numbers

Fractions - Identifying ½ as part of a whole

By the end of the lesson, the learner should be able to:

- Represent half in different shapes
- Shade half of given shapes
- Value fractions in representing parts of a whole

- Copy shapes and shade half of each
- Identify shapes that show half
- Create their own shapes and shade half
- Write ½ as the fraction representing half

How do we write half as a fraction?

KLB Mathematical Activities Grade Three pg. 132
- Shape cut-outs
- Manila papers
- Scissors
- Colored pencils

- Observation - Practical tasks - Written exercises

Numbers

Fractions - Identifying ¼ as part of a whole

By the end of the lesson, the learner should be able to:

- Identify ¼ as part of a whole
- Use cut-outs to demonstrate a quarter
- Show interest in fractions

- In groups, fold rectangular cut-outs into four equal parts
- Shade one part and identify it as a quarter of the whole
- Observe various shapes divided into four equal parts
- Identify which shapes are shaded a quarter

How can we show a quarter of a whole?

KLB Mathematical Activities Grade Three pg. 132
- Rectangular and circular cut-outs
- Manila papers
- Scissors
- Colored pencils
KLB Mathematical Activities Grade Three pg. 133
- Shape cut-outs

- Observation - Practical tasks - Oral questions

Numbers

Fractions - Identifying ⅛ as part of a whole

By the end of the lesson, the learner should be able to:

- Identify ⅛ as part of a whole
- Use cut-outs to demonstrate an eighth
- Show interest in fractions

- In groups, fold rectangular cut-outs into eight equal parts
- Shade one part and identify it as an eighth of the whole
- Observe various shapes divided into eight equal parts
- Identify which shapes are shaded an eighth

How can we show an eighth of a whole?

KLB Mathematical Activities Grade Three pg. 134
- Rectangular and circular cut-outs
- Manila papers
- Scissors
- Colored pencils
KLB Mathematical Activities Grade Three pg. 136
- Shape cut-outs

- Observation - Practical tasks - Oral questions

Numbers

Fractions - Identifying fractions as part of a group (½, ¼, ⅛)

By the end of the lesson, the learner should be able to:

- Identify ½ as part of a group
- Divide groups of objects into two equal parts
- Show interest in fractions as part of a group

- Observe pictures of oranges put into 2 equal groups
- Identify that each group is half of the whole group
- Find half of various groups of objects
- Complete sentences like "A half of 4 apples is _"

How can we find half of a group of objects?

KLB Mathematical Activities Grade Three pg. 137
- Counters
- Real objects
- Pictures of grouped objects

- Observation - Practical tasks - Oral questions

Numbers

Fractions - Identifying fractions as part of a group (½, ¼, ⅛)
Fractions - Using fractions in daily activities

By the end of the lesson, the learner should be able to:

- Identify ¼ as part of a group
- Divide groups of objects into four equal parts
- Appreciate fractions as part of a group

- Use counters to get a quarter of a group
- Count 12 objects and divide them into four equal groups
- Identify that each group is a quarter of the whole
- Complete sentences like "A quarter of 12 objects is _"

How can we find a quarter of a group of objects?

KLB Mathematical Activities Grade Three pg. 140
- Counters
- Real objects
- Pictures of grouped objects
KLB Mathematical Activities Grade Three pg. 141
KLB Mathematical Activities Grade Three pg. 147
- Word problem cards
- Real-life objects
- Pictures

- Observation - Practical tasks - Oral questions