Measurement

Volume - Volume of a cuboid

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

- Explain the meaning of volume of a cuboid.
- Work out volume of cuboids by piling blocks to form a cuboid.
- Appreciate use of piling method in working out volume in real life.

In groups, learners are guided to:
- Team up with peers to count the number of objects in the pile that makes a cuboid to determine the volume
- Find the volume of a cuboid shown by counting the unit cubes in each layer
- Work out the volume of given cuboids in groups

How can you determine the volume of a cuboid?

- KLB Mathematics Grade 4 Learner's Book pg. 123
- Cubes
- Cuboids

- Written exercise - Oral questions

Measurement

Volume - Practice: calculating volume of cuboids

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

- State the steps followed in calculating the volume of a cuboid.
- Solve a variety of problems involving the volume of cuboids.
- Appreciate use of piling method in working out volume in real life.

In groups, learners are guided to:
- Work out the volume of cuboids represented in different diagrams
- Compare volumes of different cuboids in pairs
- Share answers with other groups and discuss different approaches

How is the volume of a cuboid useful in real life?

- KLB Mathematics Grade 4 Learner's Book pg. 123
- Cubes
- Cuboids

- Oral questions - Written assignment

Measurement

Volume - Application of volume of cubes and cuboids in real-life situations
Volume - Consolidation: volume of cubes and cuboids

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

- Identify real-life situations that require calculation of volume.
- Solve word problems involving the volume of cubes and cuboids.
- Appreciate use of piling method in working out volume in real life.

In groups, learners are guided to:
- Discuss real-life situations that require calculating volume e.g. stacking boxes in a store
- Use digital devices or other resources to safely play games involving stacking blocks to form cubes and cuboids
- Present solutions to the class and discuss different methods used

How is volume applied in packing and stacking goods?

- KLB Mathematics Grade 4 Learner's Book pg. 124
- Cubes
- Cuboids
- Digital devices

- Written assignment - Observation

Measurement

Capacity - Comparing the capacity of different containers

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

- Explain the meaning of capacity.
- Compare the capacity of different containers by direct observation.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Name liquids that are measured and sold in litres
- Discuss and compare the capacities of different containers found in the classroom
- Share observations with other groups

How can you measure capacity using arbitrary units?

- KLB Mathematics Grade 4 Learner's Book pg. 125
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil

- Oral questions - Observation

Measurement

Capacity - Capacity in litres

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

- Identify the litre as a unit of measuring capacity.
- Measure capacity in litres in real-life situations.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Use a one-litre container to measure the capacity of different containers
- Discuss where the litre is used to measure liquids in real life
- Record the capacity of given containers in litres

How can you measure capacity using arbitrary units?

- KLB Mathematics Grade 4 Learner's Book pg. 125
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil

- Written exercise - Oral questions

Measurement

Capacity - Measuring capacity of containers using a one-litre container

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

- State the steps followed when measuring capacity using a one-litre container.
- Use a litre container to measure the capacity of other containers.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Team up with peers to use litre and litre containers to measure the capacity of other containers
- Find how many litres of water can fill given containers
- Record results in a table and share with other groups

Why is it important to use a standard unit like the litre?

- KLB Mathematics Grade 4 Learner's Book pg. 126
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil

- Observation - Written exercise

Measurement

Capacity - Making litre containers through filling and emptying

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

- Explain the steps followed in making a litre container.
- Make litre containers from locally available materials through filling and emptying with water or sand.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Work with peers in making litre containers from locally available materials through filling and emptying with water or sand
- Make several other litre containers and confirm their accuracy
- Use the litre containers made to measure capacity of other containers

How can you make a litre container using locally available materials?

- KLB Mathematics Grade 4 Learner's Book pg. 127
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil

- Oral questions - Observation

Measurement

Capacity - Measuring capacity using half-litre and quarter-litre containers
Capacity - Addition of capacity in litres

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

- Identify half-litre and quarter-litre as units of measuring capacity.
- Use half-litre and quarter-litre containers to measure the capacity of other containers.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Fill a litre bottle with water and use it to fill half-litre and quarter-litre containers
- Complete a table showing the number of quarter-litre and half-litre containers that fill a given container
- Discuss and share results with other groups

How can you measure smaller amounts of capacity than a litre?

- KLB Mathematics Grade 4 Learner's Book pg. 128
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil
- KLB Mathematics Grade 4 Learner's Book pg. 129

- Written exercise - Observation

Measurement

Capacity - Subtraction of capacity in litres

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

- State the steps followed when subtracting capacity in litres.
- Work out subtraction of capacity in litres in real-life situations.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Get a 20-litre bucket marked in litres and remove some litres of water to relate the activity to subtraction
- Work out subtraction problems involving litres in pairs
- Solve real-life word problems involving subtraction of capacity e.g. water remaining in a tank

How can subtracting capacities help us in daily life?

- KLB Mathematics Grade 4 Learner's Book pg. 131
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil

- Written exercise - Oral questions

Measurement

Capacity - Application of capacity in real-life situations

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

- Identify real-life situations that require measurement of capacity.
- Solve word problems involving capacity in litres.
- Appreciate use of the litre as a unit of measuring capacity in real-life situations.

In groups, learners are guided to:
- Discuss real-life situations where capacity is measured e.g. fuel, milk or water
- Solve mixed word problems involving addition and subtraction of capacity
- Play games involving capacity using containers of different capacities or digital devices

How is knowledge of capacity useful in day-to-day life?

- KLB Mathematics Grade 4 Learner's Book pg. 131
- 1-litre containers
- Containers of different sizes
- Water
- Sand
- Soil
- Digital devices

- Written assignment - Observation

Measurement

Mass - Comparing the mass of different objects

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

- Explain the meaning of mass.
- Compare the mass of different objects by direct manipulation.
- Appreciate kilogramme as a unit of measuring mass.

In groups, learners are guided to:
- Hold different objects and discuss which one feels heavier or lighter
- Compare the mass of objects using a simple balance
- Share observations with other groups

How can we measure mass in kilogrammes?

- KLB Mathematics Grade 4 Learner's Book pg. 132
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance

- Oral questions - Observation

Measurement

Mass - Measuring mass in kilograms using a beam balance

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

- Identify the kilogramme as a unit of measuring mass.
- Use a one kilogramme mass to measure masses of given objects using a beam balance.
- Appreciate kilogramme as a unit of measuring mass.

In groups, learners are guided to:
- Use one kilogramme (kg) masses to measure masses of given objects using a beam balance
- Record the masses of different objects measured in kilogrammes
- Share results with other groups

How can we measure mass in kilogrammes?

- KLB Mathematics Grade 4 Learner's Book pg. 132
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance

- Written exercise - Observation

Measurement

Mass - Measuring mass using a half-kilogram mass
Mass - Measuring mass using a quarter-kilogram mass

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

- Explain the steps followed in making a half-kilogramme mass.
- Make and use a half-kilogramme mass to measure the mass of given objects.
- Appreciate kilogramme as a unit of measuring mass.

In groups, learners are guided to:
- Work with peers in making a half-kilogramme mass and use it to measure the mass of given objects using a beam balance
- Compare masses of objects using the half-kilogramme mass in groups
- Discuss and share results with other groups

Why do we sometimes need smaller units than a kilogramme to measure mass?

- KLB Mathematics Grade 4 Learner's Book pg. 133
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance
- KLB Mathematics Grade 4 Learner's Book pg. 134

- Oral questions - Written exercise

Measurement

Mass - Mass in half-kilogram and quarter-kilogram in real-life situations

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

- State real-life situations that involve half-kilogramme and quarter-kilogramme masses.
- Solve problems involving half-kilogramme and quarter-kilogramme masses e.g. packets of sugar.
- Appreciate kilogramme as a unit of measuring mass.

- Discuss how many kilograms of sugar are in several half-kilogramme or quarter-kilogramme packets
- Solve word problems involving mass such as beans or groundnuts packed by learners
- Share solutions with other groups

How is knowledge of half and quarter kilogrammes useful when shopping?

- KLB Mathematics Grade 4 Learner's Book pg. 135
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance

- Oral questions - Written assignment

Measurement

Mass - Addition of mass in kilograms

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

- State the steps followed when adding masses in kilogrammes.
- Add mass involving kilogrammes in real-life situations.
- Appreciate kilogramme as a unit of measuring mass.

In groups, learners are guided to:
- Work out addition problems involving kilogrammes in pairs
- Solve real-life word problems involving addition of mass e.g. maize or rice bought by two people
- Share answers with other groups

How can adding mass help us in daily life?

- KLB Mathematics Grade 4 Learner's Book pg. 136
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance

- Written exercise - Oral questions

Measurement

Mass - Subtraction of mass in kilograms

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

- State the steps followed when subtracting masses in kilogrammes.
- Subtract mass involving kilogrammes in real-life situations.
- Appreciate kilogramme as a unit of measuring mass.

In groups, learners are guided to:
- Carry out subtraction of mass involving kilogrammes in pairs
- Solve real-life word problems involving subtraction of mass e.g. fish or onions remaining
- Play digital games involving mass

How can subtracting mass help us in daily life?

- KLB Mathematics Grade 4 Learner's Book pg. 137
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance
- Digital devices

- Written exercise - Observation

Measurement

Mass - Application of mass in real-life situations

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

- Identify real-life situations that require measurement of mass.
- Solve mixed word problems involving addition and subtraction of mass.
- Appreciate kilogramme as a unit of measuring mass.

In groups, learners are guided to:
- Discuss real-life situations where mass is measured e.g. farm produce or luggage
- Solve mixed problems involving mass in groups
- Present solutions to the class and discuss different methods used

How is knowledge of mass useful in day-to-day life?

- KLB Mathematics Grade 4 Learner's Book pg. 137
- 1 kg mass
- Soil or sand
- Manual/electronic weighing machine
- Beam balance

- Oral questions - Written assignment

Measurement

Time - Reading and telling time in a.m. and p.m.
Time - Estimating time using a.m. and p.m.

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

- Read and tell time in a.m. and p.m. using analogue and digital clocks.
- Tell the time shown on a given analogue or digital clock in a.m. or p.m..
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Work with peers in reading and telling time in a.m. and p.m. using digital and analogue clocks
- Practice reading time shown on clock faces in pairs
- Discuss activities that take place in a.m. and those that take place in p.m.

How can we estimate time?

- KLB Mathematics Grade 4 Learner's Book pg. 138
- Analogue and digital clocks
- Digital watches
- am/pm chart
- KLB Mathematics Grade 4 Learner's Book pg. 140

- Oral questions - Observation

Measurement

Time - Converting hours into minutes

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

- State the number of minutes in one hour.
- Convert given hours into minutes in real-life situations.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Change hours to minutes using a clock face in groups
- Practice converting given hours into minutes in pairs
- Solve real-life word problems involving conversion of hours to minutes

Why do we need to convert hours into minutes?

- KLB Mathematics Grade 4 Learner's Book pg. 141
- Analogue and digital clocks
- Digital watches
- am/pm chart

- Written exercise - Oral questions

Measurement

Time - Converting minutes into hours

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

- State the number of hours in a given number of minutes.
- Convert given minutes into hours in real-life situations.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Change minutes to hours using a clock face in groups
- Practice converting given minutes into hours in pairs
- Solve real-life word problems involving conversion of minutes to hours

Why do we need to convert minutes into hours?

- KLB Mathematics Grade 4 Learner's Book pg. 143
- Analogue and digital clocks
- Digital watches
- am/pm chart

- Written exercise - Observation

Measurement

Time - Converting days into hours

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

- State the number of hours in a given number of days.
- Convert given days into hours in real-life situations.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Change days to hours in groups using a calendar and clock
- Practice converting given days into hours in pairs
- Solve real-life word problems involving conversion of days to hours

Why do we need to convert days into hours?

- KLB Mathematics Grade 4 Learner's Book pg. 144
- Analogue and digital clocks
- Digital watches
- am/pm chart

- Oral questions - Written exercise

Measurement

Time - Converting hours into days

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

- State the number of days in a given number of hours.
- Convert given hours into days in real-life situations.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Change hours to days in groups using a calendar and clock
- Practice converting given hours into days in pairs
- Solve real-life word problems involving conversion of hours to days

Why do we need to convert hours into days?

- KLB Mathematics Grade 4 Learner's Book pg. 145
- Analogue and digital clocks
- Digital watches
- am/pm chart

- Written exercise - Oral questions

Measurement

Time - Converting weeks into days and days into weeks
Time - Recording time durations

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

- State the number of days in a week.
- Convert weeks into days and days into weeks in real-life situations.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Convert days to weeks and weeks to days using a calendar in groups
- Practice converting given weeks into days and days into weeks in pairs
- Solve real-life word problems involving conversion of weeks and days

Why do we need to convert between weeks and days?

- KLB Mathematics Grade 4 Learner's Book pg. 145
- Analogue and digital clocks
- Digital watches
- am/pm chart
- KLB Mathematics Grade 4 Learner's Book pg. 147

- Oral questions - Written exercise

Measurement

Time - Addition of units of time

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

- State the steps followed when adding units of time.
- Work out addition involving units of time in real-life situations.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Work out addition problems involving hours, minutes, weeks and days in pairs
- Solve real-life word problems involving addition of time
- Share answers with other groups

How can adding units of time help us plan our day?

- KLB Mathematics Grade 4 Learner's Book pg. 148
- Analogue and digital clocks
- Digital watches
- am/pm chart

- Written exercise - Oral questions

Measurement

Time - Subtraction of units of time

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

- State the steps followed when subtracting units of time.
- Team up with peers to work out subtraction involving units of time.
- Appreciate time in day-to-day activities.

In groups, learners are guided to:
- Team up with peers to work out subtraction involving units of time
- Solve real-life word problems involving subtraction of time e.g. comparing race times or journey times
- Discuss, tell and record time using an electronic clock

How can subtracting units of time help us compare durations?

- KLB Mathematics Grade 4 Learner's Book pg. 149
- Analogue and digital clocks
- Digital watches
- am/pm chart

- Written exercise - Written assignment

Measurement

Money - Conversion of shillings into cents

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

- State the number of cents in one shilling.
- Convert given amounts of shillings into cents in different contexts.
- Appreciate the use of money in real-life situations.

In groups, learners are guided to:
- Discuss and convert shillings into cents using real or imitation money in groups
- Practice converting given amounts of shillings into cents in pairs
- Solve real-life word problems involving conversion of shillings to cents

Why should we prepare a shopping list?

- KLB Mathematics Grade 4 Learner's Book pg. 151
- Real/imitation money
- Price list

- Oral questions - Written exercise

Measurement

Money - Conversion of cents into shillings

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

- State the number of shillings in a given number of cents.
- Convert given amounts of cents into shillings in different contexts.
- Appreciate the use of money in real-life situations.

In groups, learners are guided to:
- Discuss and convert cents into shillings using real or imitation money in groups
- Practice converting given amounts of cents into shillings in pairs
- Solve real-life word problems involving conversion of cents to shillings

Why is it important to know how to convert cents into shillings?

- KLB Mathematics Grade 4 Learner's Book pg. 153
- Real/imitation money
- Price list

- Written exercise - Oral questions

Measurement

Money - Preparing a shopping list
Money - Working out the total cost of items in a shopping list

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

- Explain the importance of a shopping list.
- Prepare a shopping list of three items in a real-life situation.
- Appreciate the use of money in real-life situations.

In groups, learners are guided to:
- Team up with peers to come up with a shopping list of some food items
- Discuss the items to include in a shopping list and their estimated prices
- Share prepared shopping lists with other groups

Why should we prepare a shopping list?

- KLB Mathematics Grade 4 Learner's Book pg. 154
- Real/imitation money
- Price list

- Observation - Oral questions

Measurement

Money - Solving word problems involving total cost of items

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

- Identify the information needed to solve a money word problem.
- Solve real-life word problems involving the total cost of items purchased.
- Appreciate the use of money in real-life situations.

In groups, learners are guided to:
- Solve word problems involving the total cost of items such as sugar, wheat flour and rice
- Discuss strategies for solving money word problems in groups
- Share solutions with the class

How can we make sure we have enough money before shopping?

- KLB Mathematics Grade 4 Learner's Book pg. 155
- Real/imitation money
- Price list

- Written assignment - Oral questions

Measurement

Money - Preparing imitation money

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

- Explain the steps followed in preparing imitation money.
- Prepare imitation coins and notes using real money as a guide.
- Appreciate the use of money in real-life situations.

In groups, learners are guided to:
- Prepare imitation coins and notes using real coins and notes as a guide
- Arrange the imitation coins and notes according to their values
- Discuss safe and honest handling of money with peers

Why is it important to handle money honestly and carefully?

- KLB Mathematics Grade 4 Learner's Book pg. 156
- Real/imitation money
- Price list

- Observation - Written assignment

Measurement
Geometry

Money - Role-playing shopping activities as buyers and shopkeepers
Position and Direction - Identifying clockwise and anti-clockwise turns

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

- Identify the roles of a buyer and a shopkeeper.
- Role-play shopping activities as buyers and shopkeepers using the class model shop and imitation money.
- Appreciate the use of money in real-life situations.

In groups, learners are guided to:
- Work with peers to come up with a class or school model shop and role-play shopping activities as buyers and shopkeepers
- Take turns to buy and sell items using imitation money
- Take video clips of peers as they role-play shopping activities

How does role-playing shopping help us understand the use of money?

- KLB Mathematics Grade 4 Learner's Book pg. 156
- Real/imitation money
- Price list
- Clock face
- Charts

- Observation - Oral questions

Geometry

Position and Direction - Demonstrating clockwise and anti-clockwise turns
Position and Direction - Quarter turn

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

- Explain the difference between a clockwise and an anti-clockwise turn.
- Demonstrate a clockwise and an anti-clockwise turn in the environment.
- Appreciate use of position and direction in real-life situations.

In groups, learners are guided to:
- Discuss and demonstrate a clockwise turn in groups
- Team up with peers to demonstrate an anti-clockwise turn
- Copy and complete a table identifying given activities as clockwise or anti-clockwise e.g. opening a door, closing a tap

Where do we see clockwise and anti-clockwise turns in daily life?

- KLB Mathematics Grade 4 Learner's Book pg. 156
- Clock face
- Charts
- KLB Mathematics Grade 4 Learner's Book pg. 157

- Observation - Written exercise

Geometry

Position and Direction - Half turn
Position and Direction - Full turn
Angles - Identifying an angle

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

- Identify a half turn direction in the environment.
- Demonstrate a half turn from a point.
- Appreciate use of position and direction in real-life situations.

In groups, learners are guided to:
- Work with peers to safely make half turns in the surroundings
- Demonstrate a half turn from a point and discuss what is seen before and after
- Discuss how many quarter turns make a half turn

How can you change your position using a half turn?

- KLB Mathematics Grade 4 Learner's Book pg. 157
- Clock face
- Charts
- KLB Mathematics Grade 4 Learner's Book pg. 158
- Digital devices
- KLB Mathematics Grade 4 Learner's Book pg. 159
- Charts with different lines
- Rulers
- Cubes and cuboids

- Observation - Written exercise

Geometry

Angles - Identifying and colouring angles in diagrams
Angles - Angles in the environment

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

- Identify angles represented in different diagrams.
- Copy and colour the angles shown in given diagrams.
- Appreciate use of angles in real-life situations.

In groups, learners are guided to:
- Copy and colour the angles in given diagrams in pairs
- In pairs or groups, discuss other angles formed by different objects in the environment
- Share coloured diagrams with other groups

How can you identify an angle in a diagram?

- KLB Mathematics Grade 4 Learner's Book pg. 160
- Charts with different lines
- Rulers
- Cubes and cuboids

- Written exercise - Observation

Geometry

Angles - Relating turns to angles
Angles - Application of angles in real-life situations

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

- Explain how a turn relates to an angle.
- Relate a turn to angles in real-life situations.
- Appreciate use of angles in real-life situations.

In groups, learners are guided to:
- Stand upright, move one hand and make different angles
- Hold two rulers together and make a quarter turn in the clockwise and anti-clockwise direction, noting the angle formed
- Make different turns using objects such as a textbook, door, window or box

How is a turn related to an angle?

- KLB Mathematics Grade 4 Learner's Book pg. 161
- Charts with different lines
- Rulers
- Cubes and cuboids
- KLB Mathematics Grade 4 Learner's Book pg. 162
- Digital devices

- Written exercise - Oral questions

Geometry

Plane Figures - Identifying shapes in the environment

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

- Identify rectangles, squares, triangles, circles and ovals from objects in the environment.
- Recognise shapes of rectangles, squares, triangles, circles and ovals from common objects in school and at home.
- Appreciate using shapes in real-life situations.

In groups, learners are guided to:
- Discuss and recognise shapes of rectangles, squares, triangles, circles and ovals from common objects in the environment
- Identify shapes found in the school compound and classroom
- Identify shapes found at home and share findings with other groups

How can you make patterns using shapes?

- KLB Mathematics Grade 4 Learner's Book pg. 163
- Cut-outs of rectangles, circles and triangles of different sizes

- Oral questions - Observation

Geometry

Plane Figures - Drawing shapes of rectangles, squares, triangles, circles and ovals

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

- State the steps followed when drawing a given plane figure.
- Draw the shapes of rectangles, squares, triangles, circles and ovals from objects in the environment.
- Appreciate using shapes in real-life situations.

In groups, learners are guided to:
- Sketch the shapes of rectangles, squares, triangles, circles and ovals in books or charts using objects in the environment
- Trace round objects to draw plane figures in pairs
- Share drawn shapes with other groups

Why is it important to draw shapes accurately?

- KLB Mathematics Grade 4 Learner's Book pg. 163
- Cut-outs of rectangles, circles and triangles of different sizes

- Written exercise - Observation

Geometry

Plane Figures - Lines of symmetry of plane figures

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

- Explain the meaning of a line of symmetry.
- Identify lines of symmetry of rectangles, squares, circles and ovals by folding.
- Appreciate using shapes in real-life situations.

In groups, learners are guided to:
- Discuss and fold the shapes into two equal parts and recognise the fold line as the line of symmetry
- Discuss how many lines of symmetry each shape can possibly have by folding the shapes
- Practice folding rectangles, squares, circles and ovals to find their lines of symmetry in pairs

How can folding help you find the lines of symmetry of a shape?

- KLB Mathematics Grade 4 Learner's Book pg. 164
- Cut-outs of rectangles, circles and triangles of different sizes

- Observation - Written exercise

Geometry

Plane Figures - Making patterns using squares, rectangles and triangles

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

- Identify a rule used to make a pattern with shapes.
- Make patterns using squares, rectangles and triangles.
- Appreciate using shapes in real-life situations.

In groups, learners are guided to:
- Work with peers to make patterns using squares, rectangles and triangles
- Discuss the arrangement used to form each pattern
- Collaboratively use digital devices to learn more about plane figures and make patterns

How can you make patterns using shapes?

- KLB Mathematics Grade 4 Learner's Book pg. 166
- Cut-outs of rectangles, circles and triangles of different sizes
- Digital devices

- Written assignment - Observation

Geometry

Plane Figures - Properties of squares and rectangles
Plane Figures - Properties of triangles

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

- State the properties of a square and a rectangle.
- Identify the properties of a square and a rectangle practically.
- Appreciate using shapes in real-life situations.

In groups, learners are guided to:
- Identify the properties of a square practically using cut-outs e.g. counting sides and corners
- Discuss the properties of a rectangle practically in groups
- Compare the properties of a square and a rectangle and share findings with other groups

How are a square and a rectangle similar or different?

- KLB Mathematics Grade 4 Learner's Book pg. 168
- Cut-outs of rectangles, circles and triangles of different sizes
- KLB Mathematics Grade 4 Learner's Book pg. 169
- Digital devices

- Oral questions - Written exercise

Data Handling

Data - Identifying materials for data collection
Data - Collecting data within the school environment

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

- Identify materials for data collection and recording in real-life situations.
- Name and gather different materials that can be used for data collection and recording such as rulers, exercise books and textbooks.
- Appreciate use of tables in representing data in real-life situations.

- In groups, write the favourite type of food for each learner and record the number of learners for each type of food
- Discuss the materials used to collect the information and present results to the class
- Discuss what would be used to measure height, mass, temperature and length of objects

How can you represent data?

- KLB Mathematics Grade 4 Learner's Book pg. 171
- Data from different sources
- KLB Mathematics Grade 4 Learner's Book pg. 172

- Oral questions - Observation

Data Handling

Data - Collecting personal data e.g. family size, shoe size, favourite food and colour
Data - Organising data by arranging in ascending order

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

- Identify types of personal data that can be collected.
- Collect data of at most 10 items on personal information such as family size, shoe size, favourite food, game and colour.
- Appreciate use of tables in representing data in real-life situations.

- In groups of 10, collect information for each learner on family size, shoe size, favourite food, game and colour
- In groups of 10, measure and record the height of each learner in centimetres
- Team up with peers to use digital devices or other resources for data collection and recording

Why is it useful to collect data about ourselves?

- KLB Mathematics Grade 4 Learner's Book pg. 172
- Data from different sources
- Digital devices

- Oral questions - Observation

Data Handling

Data - Drawing a table and recording data in it
Data - Recording data in a table
Data - Interpreting data from a table

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

- State the steps followed in drawing a table for recording data.
- Draw a table for recording data and record collected data in it.
- Appreciate use of tables in representing data in real-life situations.

- Team up with peers to represent raw data such as favourite colours or drinks in simple tables
- Draw a table with clear column headings before recording data
- Record given data such as favourite colours of ten learners in a drawn table

Why do we draw tables to record data?

- KLB Mathematics Grade 4 Learner's Book pg. 174
- Data from different sources
- KLB Mathematics Grade 4 Learner's Book pg. 175
- KLB Mathematics Grade 4 Learner's Book pg. 178

- Oral questions - Written exercise

Data Handling

Data - Interpreting data from tables in different real-life contexts
Data - Collecting, recording and interpreting data on colours in a table

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

- Identify the information that can be obtained by interpreting a table.
- Use tables showing information such as coins, absentees or patients to answer questions.
- Appreciate use of tables in representing data in real-life situations.

- Use a table showing the number of coins in a coin box to answer given questions
- Use a table showing the number of learners absent from school to answer given questions
- Use a table showing the number of patients who visited a clinic to answer given questions

How does interpreting data help us make decisions?

- KLB Mathematics Grade 4 Learner's Book pg. 178
- Data from different sources
- KLB Mathematics Grade 4 Learner's Book pg. 180

- Written assignment - Oral questions

Data Handling

Data - Application of data handling in real-life situations

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

- Explain how data handling is applied in real-life situations.
- Collect, record and interpret data about types of vehicles in the environment.
- Appreciate use of tables in representing data in real-life situations.

In groups, learners are guided to:
- Collect and record data on the types of vehicles in the environment
- Explain the data on types of vehicles in relation to responding to emergencies in case of an accident
- Team up with peers to use digital devices or other resources for data collection and recording

Why is data on vehicles in our environment useful in an emergency?

- KLB Mathematics Grade 4 Learner's Book pg. 181
- Data from different sources
- Digital devices

- Written assignment - Oral questions