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

- 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

- 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

- 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

- 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

- 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

- 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

- 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

- 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

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

- 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

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 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

- 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

- 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

- 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

- 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

- 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

- 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 various subtraction word problems
- Apply subtraction strategies appropriately
- Show interest in practical applications of subtraction

- Solve diverse word problems involving subtraction
- Share different solution strategies
- Create word problems based on real-life scenarios
- Discuss the importance of subtraction in daily life

In what ways can we apply subtraction in our daily lives?

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

- 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

- 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:

- Represent multiplication using counters
- Model multiplication of numbers 1-5 by 4
- Appreciate multiplication as repeated addition

- Use counters to show multiplication like 3 × 4
- Form 3 groups each having 4 counters
- Count the total number of counters
- Write the multiplication as repeated addition: 4 + 4 + 4 = 12
- Practice similar exercises

How do we use counters to show multiplication?

KLB Mathematical Activities Grade Three pg. 106
- Counters
- 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

- 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 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

- 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

- 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:

- Use multiplication tables to multiply by 10
- Solve various multiplication problems
- Show interest in multiplication

- Use the multiplication table on page 113 to multiply numbers
- Follow arrows to show multiplication facts
- Create their own multiplication tables
- Play multiplication games to reinforce learning

How do we use a multiplication table?

KLB Mathematical Activities Grade Three pg. 113
- Multiplication tables
- Number cards
- 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

- 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:

- 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

- 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)

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

- 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 2, 3, and 6
- Use repeated subtraction for division
- Show enthusiasm for division

- Divide numbers like 16 ÷ 2, 18 ÷ 3, 24 ÷ 6 using repeated subtraction
- Count how many times the divisor can be subtracted
- Practice similar division problems
- Solve word problems involving division

How do we divide using repeated subtraction?

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

- Observation - Oral questions - 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 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

- 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 multiples of 10 by 10
- Apply division by 10 in solving problems
- Appreciate division by 10

- Practice dividing multiples of 10 by 10
- Use the pattern of removing a zero when dividing by 10
- Solve word problems involving division by 10
- Create their own problems involving division by 10

Why is it easy to divide by 10?

KLB Mathematical Activities Grade Three pg. 124
- Number cards
- 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

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

- 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:

- 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

- Observation - Practical tasks - Oral questions

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

- Observation - Practical tasks - Oral questions

Numbers

Fractions - Identifying ¼ 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

- Observation - Practical tasks - Written exercises

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

- 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:

- 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

- Observation - Practical tasks - Written exercises

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)

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

- 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 ⅛ as part of a group
- Divide groups of objects into eight equal parts
- Show interest in fractions as part of a group

- Use counters to get an eighth of a group
- Count 16 objects and divide them into eight equal groups
- Identify that each group is an eighth of the whole
- Complete sentences like "An eighth of 16 objects is _"

How can we find an eighth of a group of objects?

KLB Mathematical Activities Grade Three pg. 141
- Counters
- Real objects
- Pictures of grouped objects

- Observation - Practical tasks - Oral questions

Numbers

Fractions - Using fractions in daily activities

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

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

- Solve problems like "There are 6 oranges in a carton. Kogo picked half of the oranges. How many oranges did Kogo pick?"
- Identify situations where fractions are used
- Create their own word problems involving fractions
- Share their problems with peers

How are fractions used in our daily lives?

KLB Mathematical Activities Grade Three pg. 147
- Word problem cards
- Real-life objects
- Pictures

- Observation - Oral questions - Written exercises

Measurement

Length - Measuring length in metres
Length - Adding length in metres

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

- Measure length in metres
- Identify items that can be measured in metres
- Appreciate measuring length in metres in real life situations

- Learners in pairs/groups use metre sticks to measure various distances and record their results
- Learners prepare 5 metres long strings with knots at intervals of one metre to measure long distances
- Learners in groups measure the lengths of the 4 walls in their classroom and record their findings
- Learners identify items that can be measured in metres

How can the length of a chalkboard be measured using a metre stick?

- KLB Mathematical Activities Grade Three pg. 149
- Metre sticks
- String
- Rulers
- Chalk board
- KLB Mathematical Activities Grade Three pg. 153
- Manila paper
- Charts

- Observation - Oral questions - Written assignments

Measurement

Length - Subtracting length in metres
Length - Estimating length up to 10 metres (1)

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

- Subtract length in metres
- Solve real-life problems involving subtraction of length in metres
- Appreciate subtraction of lengths in real life situations

- Learners in pairs/groups measure the length of the chalkboard and the teacher's table in metres and work out the difference
- Learners work out subtraction of length in metres based on real life situations
- Learners solve word problems involving subtraction of lengths

When do you regroup during subtraction of lengths?

- KLB Mathematical Activities Grade Three pg. 154
- Metre sticks
- Measuring tape
- School map
- KLB Mathematical Activities Grade Three pg. 157
- String
- Classroom objects

- Observation - Oral questions - Written exercises

Measurement

Length - Estimating length up to 10 metres (2)
Length - Applying length measurement in real-life situations

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

- Improve accuracy in estimating length up to 10 metres
- Record estimated and actual lengths in a table
- Value accuracy in estimation

- Learners in pairs/groups estimate distances of different items in and outside classroom
- Learners measure the actual distances and record in a table
- Learners compare their estimations with actual measurements
- Learners discuss strategies for improving estimation accuracy

How can we improve our length estimation skills?

- KLB Mathematical Activities Grade Three pg. 157
- Metre sticks
- String
- Measuring tape
- KLB Mathematical Activities Grade Three pg. 158
- Digital devices
- Charts

- Observation - Oral questions - Written exercises

Measurement

Mass - Measuring mass in kilograms
Mass - Adding mass in kilograms

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

- Measure mass in kilograms
- Make masses of 1kg using sand or soil
- Appreciate measuring mass in kilograms

- Learners collect safe materials to be used to measure mass in their immediate environment
- Learners make masses of 1kg using sand or soil by measuring against the kilogram standard unit
- Learners in groups measure mass of different objects in kilograms using a beam balance and share experiences

How can you make a 1kg mass using a beam balance?

- KLB Mathematical Activities Grade Three pg. 159
- Beam balance
- Sand
- Soil
- 1kg standard weight
- KLB Mathematical Activities Grade Three pg. 161
- Classroom model shop items
- Charts

- Observation - Oral questions - Practical activities

Measurement

Mass - Subtracting mass in kilograms

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

- Subtract mass in kilograms
- Solve real-life problems involving subtraction of mass in kilograms
- Appreciate subtraction of mass in real life situations

- Learners in groups measure 6kgs of sand
- Learners remove 4kgs of sand and measure the remaining sand
- Learners work out the differences between the masses of items in the classroom model shop
- Learners solve word problems involving subtraction of mass

How do you find the difference between two masses?

- KLB Mathematical Activities Grade Three pg. 163
- Beam balance
- Sand
- Classroom model shop items

- Observation - Oral questions - Written exercises

Measurement

Mass - Estimating mass up to 5 kilograms (1)

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

- Estimate mass up to 5 kilograms
- Compare estimated and actual mass
- Show interest in estimating mass

- Learners in groups compare the masses of items with a 5kg mass
- Learners identify masses which are heavier than or lighter than 5kg
- Learners estimate the mass of various items up to 5kg
- Learners measure the actual mass of items and compare with their estimations

How can you tell if an object is heavier or lighter than 5kg?

- KLB Mathematical Activities Grade Three pg. 166
- Beam balance
- 5kg mass
- Various classroom objects

- Observation - Oral questions - Practical activities

Measurement

Mass - Estimating mass up to 5 kilograms (2)

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

- Improve accuracy in estimating mass up to 5 kilograms
- Compare estimated and actual mass
- Appreciate the importance of accurate estimation

- Learners in groups estimate the mass of various objects
- Learners measure the actual mass and record in a table
- Learners compare estimated and actual masses
- Learners discuss strategies for improving estimation accuracy

How can we improve our mass estimation skills?

- KLB Mathematical Activities Grade Three pg. 167
- Beam balance
- Various objects
- Sand
- Soil

- Observation - Oral questions - Written exercises

Measurement

Mass - Applying mass measurement in real-life situations

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

- Apply mass measurement in real-life situations
- Appreciate the use of mass measurements in daily activities
- Value accuracy in mass measurement

- Learners play digital games involving mass
- Learners discuss real-life situations where mass measurement is important
- Learners solve practical problems involving mass measurements

How is mass measurement important in our daily lives?

- KLB Mathematical Activities Grade Three pg. 168
- Digital devices
- Beam balance
- Various objects

- Observation - Oral questions - Written assignments