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 groups, learners are guided to:
- 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 groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

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

In groups, learners are guided to:
- 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

- 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 tens
- Represent numbers on an abacus
- Show interest in place value

In groups, learners are guided to:
- Identify how many ones and tens are shown on an abacus
- Represent numbers on an abacus and identify their place values
- Complete sentences like "25 is _ tens _ ones"
- Write numbers represented by tens and ones (e.g., 3 tens 9 ones = 39)

What is the place value of each digit in a two-digit number?

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

- Observation - Oral questions - 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

In groups, learners are guided to:
- 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
KLB Mathematical Activities Grade Three pg. 30

- 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 1 to 500 in symbols
- Write numbers 1 to 500 in symbols
- Show interest in reading numbers

In groups, learners are guided to:
- Write and read numbers between 1 and 100
- Write and read numbers between 100 and 200
- Write and read numbers between 200 and 500
- Read numbers like 101 as "one hundred one"

How do we read numbers from 1 to 500?

KLB Mathematical Activities Grade Three pg. 33
- Number charts
- Number cards
- Flash cards

- Observation - Oral reading - Written exercises

Numbers

Whole Numbers - Reading numbers 1 to 1000 in symbols
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 501 to 1000 in symbols
- Write numbers 501 to 1000 in symbols
- Show enthusiasm in reading large numbers

In groups, learners are guided to:
- 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
KLB Mathematical Activities Grade Three pg. 35
- Word 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 51 to 100 in words
- Write numbers 51 to 100 in words
- Show interest in writing numbers in words

In groups, learners are guided to:
- Write five numbers between 51 and 100 on cards
- Read the numbers in turns
- Write the numbers in words
- Read and write numbers like 63 as "sixty-three" and 78 as "seventy-eight"

How do we write numbers from 51 to 100 in words?

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

- Observation - Oral reading - Written exercises

Numbers

Whole Numbers - Reading and writing numbers 1 to 100 in words
Whole Numbers - Identifying missing numbers in patterns up to 1000

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

In groups, learners are guided to:
- 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
KLB Mathematical Activities Grade Three pg. 37
- Number charts

- 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 101 to 500
- Find missing numbers in patterns
- Show enthusiasm in creating patterns

In groups, learners are guided to:
- Find missing numbers in sequences like 101, 102, 103, _, _
- Identify patterns counting backward: 225, 224, 223, _, _
- Identify patterns counting by tens: 320, 330, 340, _, _
- Create their own number patterns within this range

How do we complete number patterns between 101 and 500?

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

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Identifying missing numbers in patterns up to 1000
Whole Numbers - Creating number 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

In groups, learners are guided to:
- 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
KLB Mathematical Activities Grade Three pg. 40
- Number charts
- Worksheets

- 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 more complex number patterns
- Apply different rules to create patterns
- Value patterns in mathematics

In groups, learners are guided to:
- Create patterns with multiple operations (e.g., add 5, then subtract 2)
- Create patterns with skip counting (e.g., count by 3s, 5s, or 10s)
- Exchange patterns with peers to identify rules
- Discuss patterns found in the environment

How can we create more complex number patterns?

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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

- 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 2-digit number horizontally
- Apply addition in solving problems
- Appreciate addition in daily life

In groups, learners are guided to:
- Practice horizontal addition: 147 + 21 = 168
- Draw place value charts to demonstrate addition
- Solve word problems like "Kantai had 123 goats. He bought 74 more. How many goats did he have altogether?"
- Share solution strategies with peers

How do we solve addition problems horizontally?

KLB Mathematical Activities Grade Three pg. 48
- Place value charts
- Number cards
- Word problem cards
KLB Mathematical Activities Grade Three pg. 43
- Abacus
- 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

In groups, learners are guided to:
- 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

- 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 horizontally with regrouping from ones to tens
- Apply addition in solving real-life problems
- Appreciate addition in daily activities

In groups, learners are guided to:
- Arrange numbers vertically: 806 + 74
- Add ones (6 + 4 = 10) and regroup as 1 ten and 0 ones
- Add tens including the regrouped ten
- Solve word problems involving such addition

When do we need to regroup in addition?

KLB Mathematical Activities Grade Three pg. 54
- Place value charts
- Abacus
- Word problem cards
KLB Mathematical Activities Grade Three pg. 55
- 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

In groups, learners are guided to:
- 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

- 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 horizontally
- Apply addition in solving problems
- Value addition in everyday life

In groups, learners are guided to:
- Practice horizontal addition: 506 + 123 = 629
- Add ones, tens, and hundreds separately
- Solve word problems involving addition of two 3-digit numbers
- Create their own word problems for peers to solve

How can we add two 3-digit numbers horizontally?

KLB Mathematical Activities Grade Three pg. 60
- Place value charts
- Number cards
- Word problem cards
- 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 in different ways
- Compare vertical and horizontal addition
- Appreciate different addition strategies

In groups, learners are guided to:
- Add the same numbers vertically and horizontally
- Compare the processes and results
- Discuss advantages of different addition methods
- Solve addition problems using preferred methods

What are the different ways to add 3-digit numbers?

KLB Mathematical Activities Grade Three pg. 60
- Place value charts
- Number cards
- 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

In groups, learners are guided to:
- 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
KLB Mathematical Activities Grade Three pg. 62
- Word problem cards

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

In groups, learners are guided to:
- Work out addition: 562 + 291
- Add ones: 2 + 1 = 3
- Add tens: 6 + 9 = 15, regroup as 1 hundred and 5 tens
- Add hundreds including the regrouped hundred
- Solve similar addition problems

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

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

- Observation - Oral questions - Written exercises

Numbers

Addition - Adding two 3-digit numbers with single regrouping
Addition - Creating number patterns involving addition up to 1000

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

In groups, learners are guided to:
- 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
KLB Mathematical Activities Grade Three pg. 66
- 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:

- Identify rules in addition patterns
- Apply rules to complete patterns
- Show enthusiasm for patterns

In groups, learners are guided to:
- Examine patterns like 10, 15, 20, 25, 30, 35 and identify the rule (add 5)
- Look at patterns like 35, 45, 55, 65, 75, 85 and identify the rule (add 10)
- Apply identified rules to extend patterns
- Create their own addition patterns with specific rules

How do we find and apply rules in number patterns?

KLB Mathematical Activities Grade Three pg. 67
- 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:

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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

- 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 a 2-digit number from a 3-digit number without regrouping
- Use place value charts for subtraction
- Show enthusiasm in subtraction

In groups, learners are guided to:
- Demonstrate subtraction on an abacus: 678 - 43 = 635
- Subtract ones first, then tens
- Practice similar subtraction problems
- Solve word problems involving such subtraction

How do we subtract a 2-digit number from a 3-digit number?

KLB Mathematical Activities Grade Three pg. 78
- Abacus
- Place value charts
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 79
- 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

In groups, learners are guided to:
- 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

- 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 a 2-digit number with regrouping from tens to ones
- Use place value charts
- Show interest in subtraction with regrouping

In groups, learners are guided to:
- Work out subtraction: 492 - 78
- Recognize that 8 cannot be directly subtracted from 2
- Regroup 1 ten as 10 ones, adding to 2 ones to get 12 ones
- Subtract 8 from 12 to get 4 ones
- Subtract 7 from 8 tens to get 1 ten
- Practice similar problems

How do we regroup from tens to ones when subtracting a 2-digit number?

KLB Mathematical Activities Grade Three pg. 86
- Place value charts
- Abacus
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 89

- 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

In groups, learners are guided to:
- 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

- 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 3-digit numbers with regrouping from tens to ones
- Use place value charts
- Show interest in subtraction

In groups, learners are guided to:
- Work out subtraction: 347 - 128 = 219
- Recognize that 8 cannot be directly subtracted from 7
- Regroup 1 ten as 10 ones, adding to 7 ones to get 17 ones
- Subtract 8 from 17 to get 9 ones
- Subtract 2 from 3 tens to get 1 ten
- Subtract 1 from 3 hundreds to get 2 hundreds
- Practice similar problems

How do we regroup when subtracting 3-digit numbers?

KLB Mathematical Activities Grade Three pg. 92
- Place value charts
- Abacus
- Base ten blocks
KLB Mathematical Activities Grade Three pg. 94

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

In groups, learners are guided to:
- 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

- 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:

- Fill in missing numbers in subtraction
- Use inverse operations to find missing numbers
- Show interest in subtraction puzzles

In groups, learners are guided to:
- Complete exercises like: 320 - □ = 315 or 320 - 5 = □
- Use inverse operations to find missing numbers
- Create their own subtraction puzzles with missing numbers
- Exchange puzzles with peers to solve

How do we find missing numbers 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 minuends
- Apply inverse operations
- Value mathematical puzzles

In groups, learners are guided to:
- 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 complex subtraction with missing numbers
- Apply appropriate strategies
- Value problem-solving in mathematics

In groups, learners are guided to:
- Solve more complex problems with missing numbers
- Apply different strategies to find missing numbers
- Create and solve their own subtraction puzzles
- Discuss when subtraction with missing numbers is used in daily life

How can we apply subtraction with missing numbers in real life?

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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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

In groups, learners are guided to:
- 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
- Real objects
- Role-play materials

- Observation - Oral questions - Written exercises