Numbers

Whole Numbers - Place value and total value

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

- Identify place value of digits up to tens of thousands
- Explain total value of digits in numbers up to tens of thousands
- Show interest in using place value in daily life

- In pairs/groups identify place value of numbers up to tens of thousands using place value apparatus
- In pairs/groups identify total values of digits up to ten thousand

What do you consider when writing numbers in words?

- Mentor Mathematics Grade 4 pg. 1
- Place value apparatus
- Number cards
- Number charts

- Observation - Oral questions - Written assignments

Numbers

Whole Numbers - Reading and writing numbers in symbols
Whole Numbers - Reading and writing numbers in words
Whole Numbers - Ordering numbers

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

- Read numbers up to 10,000 in symbols
- Write numbers up to 10,000 in symbols
- Appreciate reading and writing numbers in symbols

- In groups read numbers up to 10,000 in symbols in real life situations
- Individually practice writing numbers up to 10,000 in symbols

What do you consider when writing numbers in symbols?

- Mentor Mathematics Grade 4 pg. 2
- Number charts
- Number cards
- Mentor Mathematics Grade 4 pg. 3
- Number chart
- Word cards
- Mentor Mathematics Grade 4 pg. 4
- Number cards
- Number charts

- Observation - Oral questions - Written work

Numbers

Whole Numbers - Rounding off numbers
Whole Numbers - Factors
Whole Numbers - Multiples

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

- Round off numbers up to 1,000 to the nearest ten
- Apply rounding off in different situations
- Value estimation through rounding off in daily activities

- In pairs or groups round off numbers up to 1,000 to the nearest ten and share with others
- Practice rounding off numbers in real life contexts

Why do we round off numbers in real life?

- Mentor Mathematics Grade 4 pg. 5
- Number cards
- Number line
- Mentor Mathematics Grade 4 pg. 6
- Charts showing factors
- Mentor Mathematics Grade 4 pg. 7
- Charts showing multiples

- Observation - Oral questioning - Written work

Numbers

Whole Numbers - Even and odd numbers
Whole Numbers - Patterns with even and odd numbers

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

- Identify even numbers up to 100
- Identify odd numbers up to 100
- Show interest in classifying numbers as even or odd

- In groups identify even and odd numbers up to 100 and share with others
- Individually classify numbers as even or odd

How can you tell if a number is even or odd?

- Mentor Mathematics Grade 4 pg. 8
- Number cards
- Charts with even and odd numbers
- Mentor Mathematics Grade 4 pg. 9
- Pattern charts

- Observation - Oral questioning - Written work

Numbers

Whole Numbers - Roman numerals
Addition - Single regrouping

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

- Identify Roman numerals up to 'X'
- Represent Hindu Arabic numerals using Roman numerals up to 'X'
- Appreciate use of Roman numerals in different situations

- In groups write Hindu Arabic numerals using Roman numerals up to 'X' using number charts
- Practice converting between numeral systems

Where do we see Roman numerals in real life?

- Mentor Mathematics Grade 4 pg. 10
- Roman numeral charts
- Number cards
- Mentor Mathematics Grade 4 pg. 19
- Number cards
- Place value charts

- Observation - Oral questioning - Written work

Numbers

Addition - Single regrouping practice

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

- Add up to two 4-digit numbers with single regrouping up to a sum of 10,000
- Apply addition in solving problems
- Show interest in addition of numbers

- In pairs practice adding 4-digit numbers with single regrouping
- Solve real-life problems involving addition

How can we use addition in our daily activities?

- Mentor Mathematics Grade 4 pg. 20
- Place value apparatus
- Number cards

- Observation - Oral questioning - Written work

Numbers

Addition - Double regrouping
Addition - Estimating sum

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

- Add up to two 4-digit numbers with double regrouping
- Solve problems involving addition with double regrouping
- Show diligence in adding numbers

- In groups add up to two 4-digit numbers with double regrouping up to a sum of 10,000 in real life situations
- Individually practice addition with double regrouping

How does regrouping help us in addition?

- Mentor Mathematics Grade 4 pg. 21
- Number cards
- Place value charts
- Mentor Mathematics Grade 4 pg. 22

- Observation - Oral questioning - Written work

Numbers

Addition - Patterns

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

- Create patterns involving addition up to a sum of 10,000
- Identify patterns in number sequences
- Appreciate patterns in mathematics

- In pairs generate patterns involving addition of numbers up to a sum of 10,000
- Share patterns with other learners

How do you make number patterns involving addition?

- Mentor Mathematics Grade 4 pg. 23
- Number cards
- Pattern charts

- Observation - Oral questioning - Written work

Numbers

Addition - Problem solving
Addition - Digital games

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

- Solve word problems involving addition
- Apply addition in real life contexts
- Show interest in using addition in daily life

- In groups solve word problems involving addition
- Create and solve real-life addition problems

When do we use addition in our daily lives?

- Mentor Mathematics Grade 4 pg. 24
- Word problem cards
- Number cards
- Mentor Mathematics Grade 4 pg. 25
- Digital devices
- Addition games

- Observation - Oral questioning - Written work

Numbers

Addition - Review

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

- Add up to two 4-digit numbers with single and double regrouping
- Solve various addition problems
- Value accuracy in computation

- Individually solve various addition problems
- In pairs check each other's work and provide feedback

How can we check if our addition is correct?

- Mentor Mathematics Grade 4 pg. 26
- Worksheets
- Number cards

- Observation - Oral questioning - Written work

Numbers

Subtraction - Without regrouping
Subtraction - With regrouping

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

- Subtract up to 4-digit numbers without regrouping
- Solve problems involving subtraction without regrouping
- Show interest in subtraction of numbers

- In groups subtract numbers up to 4-digit numbers without regrouping using place value apparatus prepared from locally available materials
- Individually practice subtraction

When do you use subtraction in real life?

- Mentor Mathematics Grade 4 pg. 30
- Place value apparatus
- Number cards
- Mentor Mathematics Grade 4 pg. 31
- Number cards
- Place value apparatus

- Observation - Oral questioning - Written work

Numbers

Subtraction - Estimating difference

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

- Estimate difference by rounding off numbers to the nearest ten
- Compare estimated and actual differences
- Value estimation in mathematics

- In groups approximate and work out difference by rounding off the numbers to the nearest ten in real life situations
- Compare estimated and actual differences

How do you estimate the difference of given numbers?

- Mentor Mathematics Grade 4 pg. 32
- Number cards
- Number line

- Observation - Oral questioning - Written work

Numbers

Subtraction - Patterns
Subtraction - Problem solving

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

- Create patterns involving subtraction from up to 10,000
- Identify patterns in number sequences
- Appreciate patterns in mathematics

- In groups generate patterns involving subtraction of numbers up to 10,000
- Share patterns with other learners

How do you create patterns involving subtraction?

- Mentor Mathematics Grade 4 pg. 33
- Number cards
- Pattern charts
- Mentor Mathematics Grade 4 pg. 34
- Word problem cards
- Number cards

- Observation - Oral questioning - Written work

Numbers

Subtraction - Digital games

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

- Play digital games involving subtraction
- Apply subtraction skills in games
- Show enthusiasm in learning through digital games

- In pairs or groups play games involving subtraction using digital device or other resources
- Discuss strategies for solving subtraction problems

How can we use digital devices to learn subtraction?

- Mentor Mathematics Grade 4 pg. 35
- Digital devices
- Subtraction games

- Observation - Oral questioning - Performance in games

Numbers

Subtraction - Word problems
Subtraction - Review

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

- Solve complex word problems involving subtraction
- Apply subtraction in multi-step problems
- Show persistence in solving problems

- In groups solve complex word problems involving subtraction
- Create multi-step problems for other groups to solve

How do we apply subtraction in solving multi-step problems?

- Mentor Mathematics Grade 4 pg. 36
- Word problem cards
- Number cards
- Mentor Mathematics Grade 4 pg. 37
- Worksheets

- Observation - Oral questioning - Written work

Numbers

Multiplication - By multiples of 10

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

- Multiply up to a two-digit number by multiples of 10
- Solve problems involving multiplication by multiples of 10
- Show interest in multiplication of numbers

- In pairs multiply 2-digit number by multiples of 10 using number cards
- Individually solve multiplication problems

When do you use multiplication in real life?

- Mentor Mathematics Grade 4 pg. 38
- Number cards
- Multiplication table

- Observation - Oral questioning - Written work

Numbers

Multiplication - Without regrouping

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

- Multiply up to a two-digit number by two-digit number without regrouping
- Apply multiplication in problem solving
- Value accuracy in multiplication

- In pairs or groups multiply up to a two-digit number by two-digit number without regrouping using counters
- Individually solve multiplication problems

How does multiplication help us in daily life?

- Mentor Mathematics Grade 4 pg. 39
- Counters
- Multiplication charts

- Observation - Oral questioning - Written work

Numbers

Multiplication - With regrouping
Multiplication - Estimating products

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

- Multiply up to a two-digit number by two-digit number with regrouping
- Solve problems involving multiplication with regrouping
- Show diligence in multiplying numbers

- In pairs or groups multiply up to a two-digit number by two-digit number with regrouping using counters
- Prepare a corresponding multiplication chart

How does regrouping work in multiplication?

- Mentor Mathematics Grade 4 pg. 40
- Counters
- Multiplication charts
- Mentor Mathematics Grade 4 pg. 41
- Number cards
- Number line

- Observation - Oral questioning - Written work

Numbers

Multiplication - Patterns

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

- Create patterns involving multiplication with product not exceeding 100
- Identify patterns in multiplication sequences
- Appreciate patterns in mathematics

- In groups generate patterns involving multiplication with products not exceeding 100
- Prepare multiplication charts using locally available materials

How do you create patterns involving multiplication?

- Mentor Mathematics Grade 4 pg. 42
- Number cards
- Pattern charts

- Observation - Oral questioning - Written work

Numbers

Multiplication - Problem solving
Multiplication - Digital games

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

- Solve word problems involving multiplication
- Apply multiplication in real life contexts
- Show interest in using multiplication in daily life

- In groups solve word problems involving multiplication
- Create and solve real-life multiplication problems

When do we use multiplication in our daily lives?

- Mentor Mathematics Grade 4 pg. 43
- Word problem cards
- Number cards
- Mentor Mathematics Grade 4 pg. 44
- Digital devices
- Multiplication games

- Observation - Oral questioning - Written work

Numbers

Multiplication - Review

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

- Multiply up to a two-digit number by a two-digit number with and without regrouping
- Solve various multiplication problems
- Value accuracy in computation

- Individually solve various multiplication problems
- In pairs check each other's work and provide feedback

How can we check if our multiplication is correct?

- Mentor Mathematics Grade 4 pg. 45
- Worksheets
- Number cards

- Observation - Oral questioning - Written work

Numbers

Division - Without remainder
Division - With remainder

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

- Divide up to a two-digit number by a one-digit number without remainder
- Solve problems involving division without remainder
- Show interest in division of numbers

- In pairs and groups discuss and carry out division of up to a two-digit number by a one-digit number without remainder using number cards
- Individually practice division

When do you use division in real life?

- Mentor Mathematics Grade 4 pg. 49
- Number cards
- Division charts
- Mentor Mathematics Grade 4 pg. 50

- Observation - Oral questioning - Written work

Numbers

Division - Relating to multiplication

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

- Relate multiplication of numbers to division of same numbers
- Use multiplication to check division answers
- Appreciate the relationship between multiplication and division

- In groups carry out division and multiplication of same numbers to establish relationship between multiplication and division
- Discuss and share results with other groups

How are multiplication and division related?

- Mentor Mathematics Grade 4 pg. 51
- Number cards
- Multiplication and division charts

- Observation - Oral questioning - Written work

Numbers

Division - Problem solving
Division - Digital games

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

- Solve word problems involving division
- Apply division in real life contexts
- Show interest in using division in daily life

- In groups solve word problems involving division
- Create and solve real-life division problems

When do we use division in our daily lives?

- Mentor Mathematics Grade 4 pg. 52
- Word problem cards
- Number cards
- Mentor Mathematics Grade 4 pg. 53
- Digital devices
- Division games

- Observation - Oral questioning - Written work

Numbers

Division - Patterns

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

- Create patterns involving division
- Identify patterns in division sequences
- Appreciate patterns in mathematics

- In groups generate patterns involving division
- Share patterns with other learners

How can we create patterns using division?

- Mentor Mathematics Grade 4 pg. 54
- Number cards
- Pattern charts

- Observation - Oral questioning - Written work

Numbers

Division - Word problems
Division - Review

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

- Solve complex word problems involving division
- Apply division in multi-step problems
- Show persistence in solving problems

- In groups solve complex word problems involving division
- Create multi-step problems for other groups to solve

How do we apply division in solving multi-step problems?

- Mentor Mathematics Grade 4 pg. 55
- Word problem cards
- Number cards
- Mentor Mathematics Grade 4 pg. 56
- Worksheets

- Observation - Oral questioning - Written work

Numbers

Fractions - Numerator and denominator

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

- Identify the numerator in a fraction
- Identify the denominator in a fraction
- Show interest in learning about fractions

- Discuss in groups the top (numerator) and bottom (denominator) numbers in a fraction and share with others
- Practice identifying numerator and denominator in given fractions

When do you use fractions in real life?

- Mentor Mathematics Grade 4 pg. 58
- Fraction charts
- Fraction cards

- Observation - Oral questioning - Written work

Numbers

Fractions - Part of a whole
Fractions - Part of a group

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

- Represent a fraction with denominators not exceeding 12 as part of a whole
- Identify fractions in everyday objects
- Appreciate fractions in real life situations

- Illustrate in groups fractions as part of whole using cut outs or clock face
- Draw and shade fractions as part of a whole

How can you represent fractions?

- Mentor Mathematics Grade 4 pg. 59
- Cut-outs
- Clock face
- Fraction charts
- Mentor Mathematics Grade 4 pg. 60
- Counters

- Observation - Oral questioning - Written work

Numbers

Fractions - Types of fractions

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

- Identify proper fractions
- Identify improper fractions
- Identify mixed fractions
- Appreciate different types of fractions

- Work out in groups proper, improper and mixed fractions as part of a whole or as part of a group using paper cut outs or counters
- Classify fractions into different types

What are the different types of fractions?

- Mentor Mathematics Grade 4 pg. 61
- Paper cut-outs
- Counters
- Fraction charts

- Observation - Oral questioning - Written work

Numbers

Fractions - Converting improper to mixed
Fractions - Converting mixed to improper

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

- Convert improper fractions to mixed fractions
- Apply conversion in solving problems
- Show interest in working with fractions

- Discuss in groups changing of improper fractions to mixed fractions
- Practice converting improper fractions to mixed fractions

How do you convert an improper fraction to a mixed fraction?

- Mentor Mathematics Grade 4 pg. 62
- Fraction cut-outs
- Fraction charts
- Mentor Mathematics Grade 4 pg. 63

- Observation - Oral questioning - Written work

Numbers

Decimals - Tenths and hundredths

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

- Identify a tenth in real life situations
- Identify a hundredth in real life situations
- Appreciate the use of decimals in real life

- Discuss in pairs/groups where tenths and hundredths are used in real life situations
- Identify tenths and hundredths in everyday contexts

How do you use decimals in real life situations?

- Mentor Mathematics Grade 4 pg. 71
- Decimal charts
- Place value charts

- Observation - Oral questioning - Written work

Numbers

Decimals - Decimal notation
Decimals - Place value

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

- Represent decimals using decimal notation
- Read decimal numbers correctly
- Show interest in decimal numbers

- Illustrate in pairs/groups decimals using place value charts
- Represent decimals using place value charts and reuse charts for other activities

How do we write decimals using decimal notation?

- Mentor Mathematics Grade 4 pg. 72
- Place value charts
- Decimal cards
- Mentor Mathematics Grade 4 pg. 73

- Observation - Oral questioning - Written work

Numbers

Decimals - Ordering

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

- Order decimals up to hundredths in ascending order
- Order decimals up to hundredths in descending order
- Show interest in comparing decimal numbers

- In groups order given decimals in ascending and descending order
- Compare decimal numbers using greater than, less than, and equal to symbols

How do we compare decimal numbers?

- Mentor Mathematics Grade 4 pg. 74
- Decimal number line
- Decimal cards

- Observation - Oral questioning - Written work

Numbers

Decimals - Digital games
Decimals - Converting fractions to decimals

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

- Play digital games involving decimals
- Apply decimal skills in games
- Show enthusiasm in learning through digital games

- In pairs play digital games involving decimals
- Discuss different decimal numbers encountered in games

How can digital games help us learn about decimals?

- Mentor Mathematics Grade 4 pg. 75
- Digital devices
- Decimal games
- Mentor Mathematics Grade 4 pg. 76
- Fraction charts
- Decimal charts

- Observation - Oral questioning - Performance in games

Numbers

Decimals - Converting decimals to fractions

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

- Convert decimals to tenths and hundredths fractions
- Apply conversion in problem solving
- Value accuracy in conversion

- In groups convert decimals to tenths and hundredths fractions
- Practice writing decimals as fractions

How do we convert a decimal to a fraction?

- Mentor Mathematics Grade 4 pg. 77
- Fraction charts
- Decimal charts

- Observation - Oral questioning - Written work

Numbers

Decimals - Word problems
Decimals - Money connection

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

- Solve word problems involving decimals
- Apply decimals in real life contexts
- Show interest in using decimals in daily life

- In groups solve word problems involving decimals
- Create and solve real-life decimal problems

When do we use decimals in our daily lives?

- Mentor Mathematics Grade 4 pg. 78
- Word problem cards
- Decimal cards
- Mentor Mathematics Grade 4 pg. 79
- Play money
- Decimal charts

- Observation - Oral questioning - Written work

Numbers

Decimals - Review

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

- Identify place value of decimals up to hundredths
- Represent decimals using decimal notation
- Order decimals up to hundredths
- Value accuracy in working with decimals

- Individually solve various problems involving decimals
- In pairs check each other's work and provide feedback

How can we use decimals in everyday life?

- Mentor Mathematics Grade 4 pg. 80
- Worksheets
- Decimal cards

- Observation - Oral questioning - Written work

Numbers

Use of letters - Representing information
Use of letters - Forming expressions

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

- Represent information using letters
- Identify where letters are used in mathematics
- Appreciate the use of letters in mathematics

- Represent various items from diverse geographical locations using letters
- Practice using letters to represent quantities

Why do we represent information using letters?

- Mentor Mathematics Grade 4 pg. 82
- Letter cards
- Expression cards
- Mentor Mathematics Grade 4 pg. 83
- Expression cards
- Word problem cards

- Observation - Oral questioning - Written work

Numbers

Use of letters - Simplifying expressions

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

- Simplify expressions representing real life situations
- Apply simplification in problem solving
- Value the use of expressions in mathematics

- In groups simplify expressions representing real life situations
- Practice simplifying basic expressions

Why do we need to simplify expressions?

- Mentor Mathematics Grade 4 pg. 84
- Expression cards
- Worksheets

- Observation - Oral questioning - Written work

Numbers

Use of letters - Word problems
Use of letters - Digital games

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

- Solve word problems by forming expressions
- Translate real life situations into mathematical expressions
- Show interest in applying expressions to solve problems

- In groups solve word problems by forming and simplifying expressions
- Create word problems for other groups to solve

How can we use expressions to solve real life problems?

- Mentor Mathematics Grade 4 pg. 85
- Word problem cards
- Expression cards
- Mentor Mathematics Grade 4 pg. 86
- Digital devices
- Expression games

- Observation - Oral questioning - Written work

Numbers
Measurement

Use of letters - Review
Length - The centimeter

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

- Represent information using letters
- Form simple expressions
- Simplify expressions
- Value accuracy in working with expressions

- Individually practice representing information using letters
- Form and simplify expressions from word problems

How can we use expressions in real life?

- Mentor Mathematics Grade 4 pg. 87
- Worksheets
- Expression cards
- Rulers
- Tape measures

- Observation - Oral questioning - Written work

Measurement

Length - Measuring in centimeters
Length - Estimating in centimeters
Length - Relationship between meters and centimeters

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

- Measure length in centimetres
- Record measurements in centimetres
- Value accuracy in measuring length

- In pairs measure the length of a given object in centimetres using a metre ruler or a tape measure
- Record measurements of various objects

Why do we measure distance in real life?

- Mentor Mathematics Grade 4 pg. 88
- Rulers
- Tape measures
- Objects of different lengths
- Mentor Mathematics Grade 4 pg. 89
- Mentor Mathematics Grade 4 pg. 90
- Metre rulers
- Tape measures

- Observation - Oral questions - Practical assessment

Measurement

Length - Converting meters to centimeters
Length - Converting centimeters to meters
Length - Perimeter

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

- Convert metres to centimetres using whole numbers
- Solve problems involving conversion
- Value precision in conversion

- In pairs convert metres into centimetres using whole numbers in real life situations
- Solve problems involving conversion

Why do we need to convert between units of length?

- Mentor Mathematics Grade 4 pg. 91
- Conversion charts
- Metre rulers
- Mentor Mathematics Grade 4 pg. 92
- Mentor Mathematics Grade 4 pg. 93
- Rulers
- Shapes cut from paper

- Observation - Oral questions - Written work

Measurement

Length - Addition
Length - Subtraction

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

- Add measurements in metres and centimetres
- Solve problems involving addition of length
- Show interest in calculations involving length

- In groups calculate addition involving metres and centimetres
- Solve word problems involving addition of lengths

How do we add lengths in different units?

- Mentor Mathematics Grade 4 pg. 94
- Rulers
- Worksheets
- Mentor Mathematics Grade 4 pg. 95

- Observation - Oral questions - Written work

Measurement

Length - Multiplication and Division
Area - Comparing surfaces

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

- Multiply and divide measurements in metres and centimetres
- Solve problems involving multiplication and division of length
- Value accuracy in calculations

- In groups work out multiplication involving metres and centimetres
- In pairs work out division involving metres and centimetres

When do we multiply or divide lengths?

- Mentor Mathematics Grade 4 pg. 96
- Rulers
- Worksheets
- Mentor Mathematics Grade 4 pg. 105
- Paper cut-outs of different shapes and sizes

- Observation - Oral questions - Written work

Measurement

Area - Unit squares

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

- Use unit squares to cover surfaces
- Count unit squares to determine area
- Value the concept of area in real life

- In pairs use different unit square cut outs to cover a given surface
- Count the number of unit squares needed to cover the surface

Why do we use unit squares to measure area?

- Mentor Mathematics Grade 4 pg. 106
- Unit square cut-outs
- Surfaces of different shapes

- Observation - Oral questions - Practical assessment

Measurement

Area - Counting unit squares

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

- Calculate area of squares and rectangles by counting unit squares
- Record area in square units
- Appreciate area measurement in everyday life

- In groups count the number of unit square cut outs prepared from locally available materials to cover the surface
- Record the area of different shapes

How do we calculate area using unit squares?

- Mentor Mathematics Grade 4 pg. 107
- Unit square cut-outs
- Grid paper

- Observation - Oral questions - Written work

Measurement

Area - Rows and columns
Area - Applications

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

- Calculate area of squares and rectangles as a product of number of rows and columns
- Apply the formula for area
- Show interest in finding areas

- In pairs establish area of a rectangle or a square is same as number of rows multiplied by number of columns
- Work out area of squares and rectangles using the formula

How is area related to rows and columns?

- Mentor Mathematics Grade 4 pg. 108
- Grid paper
- Rectangle and square cut-outs
- Mentor Mathematics Grade 4 pg. 109
- Pictures of tiled floors
- Word problem cards

- Observation - Oral questions - Written work

Measurement

Area - Problem solving

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

- Solve complex problems involving area
- Apply area in multiple contexts
- Show interest in area applications

- In groups solve word problems involving area of squares and rectangles
- Create real-life problems for other groups to solve

How can we use area in different situations?

- Mentor Mathematics Grade 4 pg. 110
- Word problem cards
- Grid paper

- Observation - Oral questions - Written work

Measurement

Area - Digital games
Area - Review

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

- Play digital games involving area
- Apply area skills in games
- Show enthusiasm in learning through digital games

- In pairs play games involving area of rectangles and squares using digital devices and other resources
- Discuss different approaches to finding area

How can digital games help us learn about area?

- Mentor Mathematics Grade 4 pg. 111
- Digital devices
- Area games
- Mentor Mathematics Grade 4 pg. 112
- Worksheets
- Grid paper

- Observation - Oral questions - Performance in games

Measurement

Volume - Piling objects

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

- Pile objects into stacks of cubes and cuboids
- Arrange objects to form cubes and cuboids
- Show interest in building three-dimensional shapes

- In groups discuss and carefully arrange blocks or objects on top of each other into cuboid and cube shape
- Practice stacking objects or blocks to form cubes and cuboids of different sizes

Where do we apply the volume of cubes and cuboids in real life situations?

- Mentor Mathematics Grade 4 pg. 113
- Building blocks
- Cubes

- Observation - Oral questions - Practical assessment

Measurement

Volume - Cuboids
Volume - Cubes

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

- Work out volume of cuboids by piling blocks
- Count the number of blocks in a cuboid
- Appreciate volume measurement

- In pairs count the number of objects in the pile that makes a cuboid to determine the volume
- Record the volume of different cuboids

How do we find the volume of a cuboid?

- Mentor Mathematics Grade 4 pg. 114
- Building blocks
- Cuboid-shaped containers
- Mentor Mathematics Grade 4 pg. 115
- Cube-shaped containers

- Observation - Oral questions - Written work

Measurement

Volume - Applications

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

- Apply volume calculation in real life situations
- Solve problems involving volume
- Show interest in volume applications

- In groups solve word problems involving volume of cubes and cuboids
- Relate volume concepts to real-life objects

How do we use volume measurement in daily life?

- Mentor Mathematics Grade 4 pg. 116
- Word problem cards
- Real-life cubic and cuboid objects

- Observation - Oral questions - Written work

Measurement

Volume - Digital games
Volume - Review

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

- Play digital games involving volume
- Apply volume skills in games
- Show enthusiasm in learning through digital games

- In pairs use digital devices or other resources to safely play games involving stacking blocks to form cubes and cuboids
- Discuss strategies for calculating volume

How can digital games help us learn about volume?

- Mentor Mathematics Grade 4 pg. 117
- Digital devices
- Volume games
- Mentor Mathematics Grade 4 pg. 118
- Worksheets
- Building blocks

- Observation - Oral questions - Performance in games

Measurement

Capacity - Measuring in liters

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

- Measure capacity in litres
- Use a one-litre container to measure capacity
- Show interest in measuring capacity

- In groups measure capacity of containers using a one litre container in real life situations
- Record the capacity of different containers

How can you measure capacity using arbitrary units?

- Mentor Mathematics Grade 4 pg. 119
- One-litre containers
- Water/sand
- Containers of different sizes

- Observation - Oral questions - Practical assessment

Measurement

Capacity - Making containers
Capacity - Half and quarter liters

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

- Make one-litre containers from locally available materials
- Verify the capacity of containers
- Value conservation of resources

- In pairs make litre containers from locally available materials through filling and emptying the container with substances such as water or sand using a 1 litre container
- Test the containers for accuracy

How can we make our own capacity containers?

- Mentor Mathematics Grade 4 pg. 120
- One-litre containers
- Locally available materials
- Water/sand
- Mentor Mathematics Grade 4 pg. 121
- Containers of different sizes

- Observation - Oral questions - Practical assessment

Measurement

Capacity - Addition

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

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

- Add capacity involving litres in real life situations
- Solve word problems involving addition of capacity

How do we add capacities?

- Mentor Mathematics Grade 4 pg. 122
- Worksheets
- One-litre containers

- Observation - Oral questions - Written work

Measurement

Capacity - Subtraction
Capacity - Games

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

- Subtract capacity involving litres
- Solve problems involving subtraction of capacity
- Appreciate calculations involving capacity

- Subtract capacity involving litres in real life situations
- Solve word problems involving subtraction of capacity

How do we find the difference between capacities?

- Mentor Mathematics Grade 4 pg. 123
- Worksheets
- One-litre containers
- Mentor Mathematics Grade 4 pg. 124
- Containers of different capacities
- Water/sand
- Digital devices

- Observation - Oral questions - Written work

Measurement

Mass - Using kilogram mass

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

- Use a kilogram mass to measure masses of different objects
- Record measurements in kilograms
- Show interest in measuring mass

- In groups use one kilogram masses to measure masses of given objects using a beam balance
- Record the mass of different objects

How do we measure mass in kilograms?

- Mentor Mathematics Grade 4 pg. 127
- One-kilogram masses
- Beam balance
- Objects of different masses

- Observation - Oral questions - Practical assessment

Measurement

Mass - Half kilogram
Mass - Quarter kilogram
Mass - Addition

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

- Use ½ kg masses to measure masses of different objects
- Make a ½ kg mass
- Value precision in measurement

- In pairs make a ½ kg mass and use it to measure mass of given objects using a beam balance
- Compare masses using ½ kg standard

How do we use half-kilogram masses for measurement?

- Mentor Mathematics Grade 4 pg. 128
- Half-kilogram masses
- Beam balance
- Objects of different masses
- Mentor Mathematics Grade 4 pg. 129
- Quarter-kilogram masses
- Electronic balance
- Mentor Mathematics Grade 4 pg. 130
- Worksheets
- Kilogram masses

- Observation - Oral questions - Practical assessment