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
KLB Mathematical Activities Grade Three pg. 3
- Cards of different sizes
- Pictures of objects of different sizes

- Observation - Oral questions - Written exercises

Numbers

Number Concept - Identifying position of objects from 1st to 20th
Number Concept - Writing positions in number symbols and words
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 of objects from 1st to 5th
- Write positions in number symbols (1st to 5th)
- Show interest in learning about positions

- Study pictures showing positions of people in a queue
- Identify who is in first, second, third, fourth, and fifth positions
- Discuss how to write positions in symbols (1st, 2nd, 3rd, 4th, 5th)
- Record and discuss positions of 5 learners running a race

What is the position of each person in a line?

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
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
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
KLB Mathematical Activities Grade Three pg. 20
- Number cards
- Counters

- Observation - Oral questions - Written assignments

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 in multiples of 100
- Count backward in different intervals
- Show enthusiasm when counting backward

- In groups, take turns to rope skip as they count in turns: 1000, 900, 800...
- Count backward in hundreds: 1000, 900, 800, 700, 600, 500...
- Complete number sequences with missing numbers
- Play counting games involving backward counting

How do we count backward from 1000 in multiples of 100?

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

- 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
KLB Mathematical Activities Grade Three pg. 26
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

- 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
KLB Mathematical Activities Grade Three pg. 34

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

- 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
KLB Mathematical Activities Grade Three pg. 38

- Observation - Oral reading - 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

- 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
Whole Numbers - Playing games involving number patterns
Whole Numbers - Playing games involving number patterns

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

- 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
- Number pattern cards
- Game boards
- Pattern puzzles
- Digital devices (if available)
- Environmental patterns
- Craft materials

- Observation - Oral questions - Written exercises

Numbers

Whole Numbers - Playing games involving number patterns
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:

- 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
KLB Mathematical Activities Grade Three pg. 46
- Abacus
- Place value charts
- Base ten blocks

- 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 horizontally
- Apply addition in solving problems
- Appreciate addition in daily life

- 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

- 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
KLB Mathematical Activities Grade Three pg. 55

- 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
KLB Mathematical Activities Grade Three pg. 62
- Word problem cards
KLB Mathematical Activities Grade Three pg. 63

- 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

- 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

- 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
KLB Mathematical Activities Grade Three pg. 68
KLB Mathematical Activities Grade Three pg. 69

- Observation - Oral questions - Written exercises

Numbers

Addition - Creating number patterns involving addition up to 1000
Addition - Practicing addition using digital devices or other resources

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

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

- Create patterns with multiple operations (e.g., add 5, then add 10)
- Create patterns with varying intervals
- Exchange patterns with peers to identify rules
- Discuss patterns found in daily life

How can we create more complex addition patterns?

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

- 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 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
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

- 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
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: 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
KLB Mathematical Activities Grade Three pg. 80

- 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

- 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
KLB Mathematical Activities Grade Three pg. 96
- 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

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

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

- 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:

- Create patterns with subtraction rules
- Apply specific rules to create patterns
- Show creativity in pattern creation

- Create patterns starting from 30 with the rule "subtract 2"
- Create patterns with various starting points and rules
- Exchange patterns with peers and solve each other's patterns
- Discuss different ways to create subtraction patterns

How do we create our own subtraction patterns?

KLB Mathematical Activities Grade Three pg. 99
- Number charts
- Number cards
- Worksheets
KLB Mathematical Activities Grade Three pg. 98
- 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
Multiplication - Modeling multiplication as repeated addition using numbers 1, 2, 3, 4 and 5 by 4 and 5
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:

- 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
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
KLB Mathematical Activities Grade Three pg. 108
- Multiplication tables
- Counters

- Observation - Oral questions - Written exercises

Numbers

Multiplication - Multiplying a single digit number by a single digit number
Multiplication - Multiplying single digit numbers by 10

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

- Multiply single-digit numbers fluently
- Apply multiplication in solving problems
- Show interest in using multiplication

- Practice multiplication facts
- Solve word problems involving multiplication
- Work in pairs to quiz each other on multiplication facts
- Play multiplication games to reinforce learning

How can we apply multiplication to solve problems?

KLB Mathematical Activities Grade Three pg. 110
- Multiplication fact cards
- Word problem cards
- Game materials
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
Multiplication - Appreciating multiplication as repeated addition in daily life

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

- Observation - Oral questions - Written exercises

Numbers

Multiplication - Appreciating multiplication as repeated addition in daily life
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:

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

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

Why is multiplication faster than repeated addition?

KLB Mathematical Activities Grade Three pg. 117
- Real-life scenarios
- Role-play materials
- Word problem cards
KLB Mathematical Activities Grade Three pg. 118
- Counters
- Picture cards
- Number cards

- Observation - Oral questions - Written exercises

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
Division - Dividing 2-digit numbers by 10 without remainder
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 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
KLB Mathematical Activities Grade Three pg. 124
- Multiplication tables
- 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
KLB Mathematical Activities Grade Three pg. 128
- Real-life scenarios
- Role-play materials
- Word problem cards

- Observation - Oral questions - Written exercises

Numbers

Fractions - Identifying ½ as part of a whole
Fractions - Identifying ¼ as part of a whole

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

- Identify ½ as part of a whole
- Use cut-outs to demonstrate half
- Show interest in fractions

- In groups, take rectangular cut-outs and fold them into two equal parts
- Shade one of the parts and identify it as half of the whole
- Observe various shapes divided into two equal parts
- Identify which shapes are shaded half

How can we show half of a whole?

KLB Mathematical Activities Grade Three pg. 129
- Rectangular and circular cut-outs
- Manila papers
- Scissors
- Colored pencils
KLB Mathematical Activities Grade Three pg. 132
- Shape cut-outs

- Observation - Practical tasks - Oral questions

Numbers

Fractions - Identifying ¼ as part of a whole
Fractions - Identifying ⅛ as part of a whole

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

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

- Identify shapes divided into four equal parts
- Copy shapes and shade a quarter of each
- Create their own shapes and shade a quarter
- Write ¼ as the fraction representing a quarter

How do we write a quarter as a fraction?

KLB Mathematical Activities Grade Three pg. 133
- Shape cut-outs
- Manila papers
- Scissors
- Colored pencils
KLB Mathematical Activities Grade Three pg. 134
- Rectangular and circular cut-outs

- Observation - Practical tasks - Written exercises

Numbers

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

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

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

- Identify shapes divided into eight equal parts
- Copy shapes and shade an eighth of each
- Create their own shapes and shade an eighth
- Write ⅛ as the fraction representing an eighth

How do we write an eighth as a fraction?

KLB Mathematical Activities Grade Three pg. 136
- Shape cut-outs
- Manila papers
- Scissors
- Colored pencils
KLB Mathematical Activities Grade Three pg. 137
- Counters
- Real objects
- Pictures of grouped objects

- Observation - Practical tasks - Written exercises

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

Measurement

Capacity - Measuring capacity in litres (1)
Capacity - Measuring capacity in litres (2)

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

- Identify items measured in litres
- Collect containers labelled in litres
- Appreciate measurement of capacity in litres

- Learners in pairs/groups collect safe containers labelled litres from the environment
- Learners identify and write items that were stored in the containers
- Learners discuss that a litre is written in short as l

What things are measured in litres?

- KLB Mathematical Activities Grade Three pg. 169
- One litre containers
- Locally available containers
- Water
- KLB Mathematical Activities Grade Three pg. 170
- Various containers (jug, jerrycan, sufuria, pot, basin, bucket)

- Observation - Oral questions - Practical activities

Measurement

Capacity - Adding capacity in litres
Capacity - Subtracting capacity in litres

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

- Add capacity in litres
- Solve real-life problems involving addition of capacity in litres
- Value accuracy in addition of capacity

- Learners in groups take a 1 litre bottle and use it to fill a jerrycan with water
- Learners use 1 litre bottles to fill a basin with water
- Learners find the total number of litres of water in the two containers
- Learners practice addition of capacity in litres through exercises

How do we find the total capacity of two or more containers?

- KLB Mathematical Activities Grade Three pg. 173
- One litre containers
- Various containers
- Water
- KLB Mathematical Activities Grade Three pg. 175

- Observation - Oral questions - Written exercises

Measurement

Capacity - Estimating capacity up to 5 litres (1)
Capacity - Estimating capacity up to 5 litres (2)
Capacity - Applying capacity measurement in real-life situations (1)

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

- Compare capacity using a 5 litre container
- Identify containers that hold more than or less than 5 litres
- Show interest in comparing capacity

- Learners in groups work to show which containers hold more than or less than 5 litres
- Learners compare various containers like kettle, jug, basin, sufuria, jerrycan, and bucket with a 5 litre container
- Learners identify containers that hold more than or less than 5 litres

Which household containers hold more than 5 litres?

- KLB Mathematical Activities Grade Three pg. 176
- 5 litre container
- Various containers (kettle, jug, basin, sufuria, jerrycan, bucket)
- Water
- KLB Mathematical Activities Grade Three pg. 177
- Various containers
- One litre container
- KLB Mathematical Activities Grade Three pg. 178
- Digital devices

- Observation - Oral questions - Practical activities

Measurement

Capacity - Applying capacity measurement in real-life situations (2)
Time - Identifying minute as a unit of measuring time

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

- Apply capacity measurement in home situations
- Solve real-life capacity problems
- Value accuracy in measuring capacity

- Learners in groups discuss everyday situations where capacity measurement is used at home
- Learners role play buying and selling liquids measured in litres
- Learners solve word problems involving capacity in real-life contexts

How do we use capacity measurement at home and in shops?

- KLB Mathematical Activities Grade Three pg. 178
- One litre containers
- Various containers
- Charts
- Water
- KLB Mathematical Activities Grade Three pg. 179
- Clock faces
- Circular cut outs
- Digital clocks
- Charts showing clock face

- Observation - Oral questions - Role play assessment

Measurement

Time - Reading and telling time using 'past' and 'to' on clock face (1)
Time - Reading and telling time using 'past' and 'to' on clock face (2)
Time - Reading and telling time using digital and analogue clocks (1)

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

- Read and tell time using half past the hour
- Read and tell time using quarter past the hour
- Value punctuality

- Learners in groups read and tell time when the minute hand is pointing at 6 (half past the hour)
- Learners in groups read and tell time when the minute hand is pointing at 3 (quarter past the hour)
- Learners practice reading various times on clock faces

How do we read time when the minute hand points to 6?

- KLB Mathematical Activities Grade Three pg. 184
- Clock faces
- Digital clocks
- Charts showing clock faces at different times
- KLB Mathematical Activities Grade Three pg. 188
- KLB Mathematical Activities Grade Three pg. 192
- Analogue clocks
- Charts showing digital and analogue time

- Observation - Oral questions - Written exercises

Measurement

Time - Reading and telling time using digital and analogue clocks (2)
Time - Writing time using 'past' and 'to' the hour

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

- Tell time using both digital and analogue clocks
- Compare digital and analogue time displays
- Value time management

- Learners practice reading different times on digital clocks
- Learners match digital time displays with corresponding analogue clock faces
- Learners solve problems involving reading time on both types of clocks

What are the advantages of digital and analogue clocks?

- KLB Mathematical Activities Grade Three pg. 192
- Digital clocks
- Analogue clocks
- Charts showing digital and analogue time
- KLB Mathematical Activities Grade Three pg. 195
- Clock faces
- Charts showing different times
- Exercise books

- Observation - Oral questions - Written exercises

Measurement

Time - Estimating time in hours
Time - Adding time (hours and minutes without conversion)

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

- Estimate time in hours
- Round time to the nearest hour
- Value time management

- Learners in groups take a clock face and show a time with the minute hand pointing at a specific position
- Learners read the number which is nearest the hour hand
- Learners estimate and round time to the nearest hour
- Learners solve problems involving estimation of time

How do we estimate time to the nearest hour?

- KLB Mathematical Activities Grade Three pg. 196
- Clock faces
- Digital clocks
- Charts showing different times
- KLB Mathematical Activities Grade Three pg. 197
- Charts showing addition of time

- Observation - Oral questions - Written exercises

Measurement

Time - Subtracting time (hours and minutes without conversion)
Time - Appreciating time in real-life situations
Money - Identifying Kenyan currency notes up to Sh.1000

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

- Subtract time involving hours and minutes without conversion
- Solve real-life problems involving subtraction of time
- Value time management

- Learners in groups arrange subtraction of time in vertical form
- Learners subtract the minutes
- Learners subtract the hours
- Learners solve word problems involving subtraction of time

How do we subtract hours and minutes separately?

- KLB Mathematical Activities Grade Three pg. 197
- Clock faces
- Digital clocks
- Charts showing subtraction of time
- Charts showing daily schedules
- KLB Mathematical Activities Grade Three pg. 198
- Kenyan currency notes (real or imitations)
- Charts showing currency notes
- Manila paper

- Observation - Oral questions - Written exercises

Measurement

Money - Counting money in different denominations up to Sh.1000
Money - Adding money in different denominations up to Sh.1000 (1)

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

- Count money in different denominations up to sh.1000
- Identify the total value of a collection of notes and coins
- Appreciate the importance of counting money accurately

- Learners in groups take different combinations of currency notes and coins
- Learners count the total value of money in each group
- Learners count and record the value of different combinations of notes and coins
- Learners solve problems involving counting money

How do you count a combination of different currency notes and coins?

- KLB Mathematical Activities Grade Three pg. 200
- Kenyan currency notes and coins (real or imitations)
- Charts showing currency
- Classroom model shop
- KLB Mathematical Activities Grade Three pg. 201
- Kenyan currency (real or imitations)
- Charts showing addition of money

- Observation - Oral questions - Practical activities

Measurement

Money - Adding money in different denominations up to Sh.1000 (2)
Money - Subtracting money in different denominations up to Sh.1000 (1)

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

- Add money in different denominations with regrouping
- Solve real-life problems involving addition of money
- Show interest in adding money

- Learners in groups practice adding money with regrouping from cents to shillings
- Learners solve addition problems involving money in real-life situations
- Learners use a price list to calculate the total cost of multiple items

How do we regroup when adding money with cents?

- KLB Mathematical Activities Grade Three pg. 202
- Kenyan currency (real or imitations)
- Price lists
- Classroom model shop
- KLB Mathematical Activities Grade Three pg. 203
- Charts showing subtraction of money

- Observation - Oral questions - Written exercises

Measurement

Money - Subtracting money in different denominations up to Sh.1000 (2)
Money - Representing the same amount in different denominations
Money - Converting money into different denominations

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

- Subtract money in different denominations with regrouping
- Solve real-life problems involving subtraction of money
- Appreciate subtraction of money in daily activities

- Learners in groups practice subtracting money with regrouping
- Learners solve subtraction problems involving money in real-life situations
- Learners calculate change when buying items from a price list

How do we find change when buying items?

- KLB Mathematical Activities Grade Three pg. 204
- Kenyan currency (real or imitations)
- Price lists
- Classroom model shop
- KLB Mathematical Activities Grade Three pg. 208
- Charts showing equivalent denominations
- KLB Mathematical Activities Grade Three pg. 209
- Charts showing conversion of denominations

- Observation - Oral questions - Written exercises

Measurement

Money - Using money to buy up to 3 items involving balance
Money - Appreciating spending and saving money

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

- Use money to buy up to 3 items involving balance
- Calculate total cost and change when buying items
- Value honesty when handling money

- Learners use a price list to select items to buy
- Learners calculate the total cost of up to 3 items
- Learners determine the balance (change) to be received after payment
- Learners role play buying and selling scenarios in a model shop

How do you calculate the balance after buying multiple items?

- KLB Mathematical Activities Grade Three pg. 211
- Kenyan currency (real or imitations)
- Price lists
- Classroom model shop
- KLB Mathematical Activities Grade Three pg. 214
- Charts showing saving methods
- Pictures of banks and saving institutions
- Pictures of items to buy

- Observation - Oral questions - Role play assessment

Geometry

Position and Direction - Moving along a straight line from a point
Position and Direction - Identifying right and left side from a point
Position and Direction - Turning to the right from a point

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

- Move along a straight line from a point
- Identify starting and ending points on a straight line
- Appreciate moving along a straight line in daily activities

- Learners in groups draw a straight line on a level ground outside the classroom
- Learners move along the straight line in turns
- Learners move along the straight line from one end to the other in turns
- Learners move along straight paths in the school compound

What is the importance of moving in a straight line?

- KLB Mathematical Activities Grade Three pg. 215
- Chalk
- String
- Outdoor space
- Charts showing straight lines
- KLB Mathematical Activities Grade Three pg. 216
- Pictures showing objects in different positions
- Classroom objects
- School environment
- KLB Mathematical Activities Grade Three pg. 219
- Pictures showing turning right

- Observation - Oral questions - Practical activities

Geometry

Position and Direction - Turning to the left from a point
Position and Direction - Using directions in real-life situations

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

- Turn to the left from a point
- Identify objects seen after turning left
- Appreciate positional awareness in daily activities

- Learners observe pictures showing turning left
- Learners practice turning to the left from a standing position
- Learners identify objects they can see after turning left
- Learners follow instructions to turn left at specific points

What do you see when you turn to the left?

- KLB Mathematical Activities Grade Three pg. 219
- Pictures showing turning left
- Outdoor space
- Classroom objects
- KLB Mathematical Activities Grade Three pg. 221
- Maps of school compound
- Village map shown in textbook
- Charts showing directions

- Observation - Oral questions - Practical activities

Geometry

Shapes - Identifying shapes in a combined shape made of two different shapes
Shapes - Drawing a combined shape made of 2 shapes
Shapes - Modeling a combined shape made of two shapes
Shapes - Appreciating combined shapes in the environment

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

- Identify the shapes in a combined shape made of two different shapes
- Name individual shapes within combined shapes
- Appreciate shapes in the environment

- Learners in groups trace different shapes
- Learners write the name of each shape
- Learners identify component shapes in combined shapes like a hut (triangle and rectangle)
- Learners identify combined shapes in their environment

What shapes can you identify in your school?

- KLB Mathematical Activities Grade Three pg. 224
- Cut-outs of various shapes
- Pictures of combined shapes
- Real objects showing combined shapes
- KLB Mathematical Activities Grade Three pg. 225
- Paper
- KLB Mathematical Activities Grade Three pg. 226
- Plasticine
- Sticks
- String
- KLB Mathematical Activities Grade Three pg. 227
- School environment
- Pictures showing combined shapes

- Observation - Oral questions - Written exercises