Measurement

Length - Centimetre as a unit of measuring length
Length - Measuring length in centimetres

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

- Identify the centimetre as a unit of measuring length in real life situations.
- Show interest in using centimetre as a unit of measurement.

- In groups, learners identify the centimetre and mark out lengths of one centimetre using a ruler.
-Learners identify items whose lengths can be measured in centimetres.

How can you measure distance?

KLB Mathematics Grade 4 Learner's Book pg. 91
- Metre ruler
- Tape measure
- Objects for measurement
KLB Mathematics Grade 4 Learner's Book pg. 92
- Various classroom objects

- Observation - Oral questions - Written assignments

Measurement

Length - Estimating and measuring length in centimetres

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

- Estimate and measure length in centimetres.
- Appreciate importance of estimation in measurement.

- In groups, learners estimate the length of a given object in centimetres.
-Learners measure actual length of the estimated length in centimetres and compare results.

Why is estimation important in measurement?

KLB Mathematics Grade 4 Learner's Book pg. 94
- Metre ruler
- Tape measure
- Various objects

- Observation - Oral questions - Written assignments

Measurement

Length - Relationship between metres and centimetres

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

- Establish the relationship between metres and centimetres practically.
- Show interest in the relationship between units of length.

- In groups, learners measure length of objects in classrooms in metres and centimetres and establish the relationship between the units.
-Learners practice comparing measurements in different units.

How are metres and centimetres related?

KLB Mathematics Grade 4 Learner's Book pg. 95
- Metre ruler
- Tape measure
- String
- Measuring tape

- Observation - Oral questions - Written assignments

Measurement

Length - Converting metres to centimetres
Length - Converting centimetres to metres

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

- Convert metres to centimetres in real life situation.
- Appreciate conversion of units in daily life.

- In groups, learners use the relationship between centimetres and metres to convert from metres to centimetres.
-Learners practice converting measurements from metres to centimetres.

Why do we need to convert between units of measurement?

KLB Mathematics Grade 4 Learner's Book pg. 96
- Metre ruler
- Conversion tables
- Measuring tape
KLB Mathematics Grade 4 Learner's Book pg. 97

- Observation - Oral questions - Written assignments

Measurement

Length - Perimeter of plane figures

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

- Work out perimeter of plane figures in different contexts.
- Appreciate use of perimeter in real life situations.

- In groups, learners calculate perimeter of plane figures.
-Learners measure and calculate perimeter of various objects in the classroom.

How do you find the perimeter of different shapes?

KLB Mathematics Grade 4 Learner's Book pg. 98
- Ruler
- Shape cutouts
- Measuring tape

- Observation - Oral questions - Written assignments

Measurement

Length - Addition involving length in metres and centimetres
Length - Subtraction involving length in metres and centimetres

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

- Work out addition involving length in metres and centimetres in real life situations.
- Show interest in addition of length measurements.

- In groups, learners calculate addition involving metres and centimetres.
-Learners practice solving real-life problems involving addition of length measurements.

When do you need to add lengths in real life?

KLB Mathematics Grade 4 Learner's Book pg. 99
- Metre ruler
- Tape measure
- Number cards
- Place value chart
KLB Mathematics Grade 4 Learner's Book pg. 102

- Observation - Oral questions - Written assignments

Measurement

Length - Multiplication involving metres and centimetres

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

- Carryout multiplication involving metres and centimetres in real life situations.
- Show interest in multiplication of length measurements.

- In groups, learners work out multiplication involving metres and centimetres.
-Learners practice solving real-life problems involving multiplication of length measurements.

How can multiplication help us with length measurements?

KLB Mathematics Grade 4 Learner's Book pg. 104
- Metre ruler
- Tape measure
- Number cards
- Place value chart

- Observation - Oral questions - Written assignments

Measurement

Length - Multiplication involving metres and centimetres

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

- Carryout multiplication involving metres and centimetres in real life situations.
- Show interest in multiplication of length measurements.

- In groups, learners work out multiplication involving metres and centimetres.
-Learners practice solving real-life problems involving multiplication of length measurements.

How can multiplication help us with length measurements?

KLB Mathematics Grade 4 Learner's Book pg. 104
- Metre ruler
- Tape measure
- Number cards
- Place value chart

- Observation - Oral questions - Written assignments

Measurement

Length - Division involving metres and centimetres

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

- Carryout division involving metres and centimetres in real life situations.
- Appreciate division of length measurements.

- In pairs, learners work out division involving metres and centimetres.
-Learners practice solving real-life problems involving division of length measurements.

How can division help us with length measurements?

KLB Mathematics Grade 4 Learner's Book pg. 105
- Metre ruler
- Tape measure
- Number cards
- Place value chart

- Observation - Oral questions - Written assignments

Measurement

Area - Comparing area of surfaces by direct manipulation

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

- Compare the area of given surfaces by direct manipulation.
- Show interest in comparing areas of surfaces.

- In groups, learners compare area of two surfaces directly by placing one surface on the other.
-Learners practice comparing areas of different surfaces by direct manipulation.

How do you work out area of different surfaces?

KLB Mathematics Grade 4 Learner's Book pg. 106
- Paper cutouts
- Different shapes
- Objects with flat surfaces

- Observation - Oral questions - Written assignments

Measurement

Area - Calculating area by 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.
- Develop interest in calculating area.

- In pairs, learners use different unit square cut outs to cover a given surface.
-In groups, learners count the number of unit square cut outs prepared from locally available materials to cover the surface.

What is a unit square and how is it used?

KLB Mathematics Grade 4 Learner's Book pg. 108
- Unit square cutouts
- Grid paper
- Locally available materials

- Observation - Oral questions - Written assignments

Measurement

Area - Calculating area by 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.
- Develop interest in calculating area.

- In pairs, learners use different unit square cut outs to cover a given surface.
-In groups, learners count the number of unit square cut outs prepared from locally available materials to cover the surface.

What is a unit square and how is it used?

KLB Mathematics Grade 4 Learner's Book pg. 108
- Unit square cutouts
- Grid paper
- Locally available materials

- Observation - Oral questions - Written assignments

Measurement

Area - Area of a square by counting unit squares

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

- Calculate area of squares by counting unit squares.
- Show interest in calculating area of squares.

- In groups, learners use unit square cutouts to cover square surfaces.
-Learners practice counting unit squares to find area of squares.

How do you find the area of a square?

KLB Mathematics Grade 4 Learner's Book pg. 109
- Unit square cutouts
- Square shapes
- Grid paper

- Observation - Oral questions - Written assignments

Measurement

Area - Area of a square by counting unit squares

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

- Calculate area of squares by counting unit squares.
- Show interest in calculating area of squares.

- In groups, learners use unit square cutouts to cover square surfaces.
-Learners practice counting unit squares to find area of squares.

How do you find the area of a square?

KLB Mathematics Grade 4 Learner's Book pg. 109
- Unit square cutouts
- Square shapes
- Grid paper

- Observation - Oral questions - Written assignments

Measurement

Area - Area of a rectangle by counting unit squares

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

- Calculate area of rectangles by counting unit squares.
- Appreciate calculating area in real life.

- In groups, learners use unit square cutouts to cover rectangular surfaces.
-Learners practice counting unit squares to find area of rectangles.

How do you find the area of a rectangle?

KLB Mathematics Grade 4 Learner's Book pg. 110
- Unit square cutouts
- Rectangular shapes
- Grid paper

- Observation - Oral questions - Written assignments

Measurement

Area - Area of squares as product of rows and columns

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

- Calculate area of squares as a product of number of rows and columns.
- Show interest in calculating area of squares.

- In pairs, learners establish area of a square is same as number of rows multiplied by number of columns.
-Learners practice calculating area of squares using rows and columns.

How is multiplying rows by columns related to area?

KLB Mathematics Grade 4 Learner's Book pg. 112
- Grid paper
- Square shapes
- Unit square cutouts

- Observation - Oral questions - Written assignments

Measurement

Area - Area of rectangles as product of rows and columns

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

- Calculate area of rectangles as a product of number of rows and columns.
- Appreciate use of rows and columns in calculating area.

- In pairs, learners establish area of a rectangle is same as number of rows multiplied by number of columns.
-Work out area of squares and rectangles by multiplying number of rows by number of columns, such as in tiled or paved floors.

How can we calculate area using rows and columns?

KLB Mathematics Grade 4 Learner's Book pg. 113
- Grid paper
- Rectangular shapes
- Unit square cutouts

- Observation - Oral questions - Written assignments

Measurement

Area - Area of rectangles as product of rows and columns

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

- Calculate area of rectangles as a product of number of rows and columns.
- Appreciate use of rows and columns in calculating area.

- In pairs, learners establish area of a rectangle is same as number of rows multiplied by number of columns.
-Work out area of squares and rectangles by multiplying number of rows by number of columns, such as in tiled or paved floors.

How can we calculate area using rows and columns?

KLB Mathematics Grade 4 Learner's Book pg. 113
- Grid paper
- Rectangular shapes
- Unit square cutouts

- Observation - Oral questions - Written assignments

Measurement

Area - Finding area of squares and rectangles

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

- Calculate area of squares and rectangles using different methods.
- Appreciate use of rows and columns in calculating area of squares and rectangles in real life situations.

- In groups, learners calculate area of various squares and rectangles using rows and columns.
-In pairs, learners play games involving area of rectangles and squares using digital devices and other resources.

How can we find the area of shapes in real life?

KLB Mathematics Grade 4 Learner's Book pg. 115
- Grid paper
- Digital devices
- Square and rectangular shapes

- Observation - Oral questions - Written assignments

Measurement

Volume - Piling objects into stacks of cubes

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

- Pile objects into stacks of cubes in real life situations.
- Show interest in piling objects.

- In groups, learners discuss and carefully arrange blocks or objects on top of each other into cuboid and cube shape.
-Learners 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?

KLB Mathematics Grade 4 Learner's Book pg. 118
- Cubes
- Cuboids
- Building blocks

- Observation - Oral questions - Written assignments

Measurement

Volume - Piling objects into stacks of cuboids

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

- Pile objects into stacks of cuboids in real life situations.
- Appreciate piling objects in real life.

- In groups, learners arrange and pile objects to form cuboids of different sizes.
-Learners use matchboxes to build different stacks of cuboids.

How can we use stacking to understand volume?

KLB Mathematics Grade 4 Learner's Book pg. 119
- Matchboxes
- Building blocks
- Cuboid shapes

- Observation - Oral questions - Written assignments

Measurement

Volume - Piling objects into stacks of cuboids

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

- Pile objects into stacks of cuboids in real life situations.
- Appreciate piling objects in real life.

- In groups, learners arrange and pile objects to form cuboids of different sizes.
-Learners use matchboxes to build different stacks of cuboids.

How can we use stacking to understand volume?

KLB Mathematics Grade 4 Learner's Book pg. 119
- Matchboxes
- Building blocks
- Cuboid shapes

- Observation - Oral questions - Written assignments

Measurement

Volume - Working out volume of cuboids by piling blocks

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

- Work out volume of cuboids by piling blocks to form a cuboid.
- Show interest in volume of cuboids.

- In pairs, learners count the number of objects in the pile that makes a cuboid to determine the volume.
-Learners practice calculating volume of different cuboids by counting blocks.

How do you find the volume of a cuboid?

KLB Mathematics Grade 4 Learner's Book pg. 120
- Unit cubes
- Building blocks
- Matchboxes

- Observation - Oral questions - Written assignments

Measurement

Volume - Working out volume of cuboids by piling blocks

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

- Work out volume of cuboids by piling blocks to form a cuboid.
- Show interest in volume of cuboids.

- In pairs, learners count the number of objects in the pile that makes a cuboid to determine the volume.
-Learners practice calculating volume of different cuboids by counting blocks.

How do you find the volume of a cuboid?

KLB Mathematics Grade 4 Learner's Book pg. 120
- Unit cubes
- Building blocks
- Matchboxes

- Observation - Oral questions - Written assignments

Measurement

Volume - Working out volume of cubes by piling blocks

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

- Calculate the volume of cubes by piling blocks to form a cube.
- Appreciate volume of cubes in real life.

- In groups, learners count the number of objects in the pile that makes a cube to determine the volume.
-Learners practice calculating volume of different cubes by counting blocks.

How do you find the volume of a cube?

KLB Mathematics Grade 4 Learner's Book pg. 121
- Unit cubes
- Building blocks
- Matchboxes

- Observation - Oral questions - Written assignments

Measurement

Volume - Volume of cubes and cuboids

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

- Calculate volume of cubes and cuboids.
- Appreciate use of pilling method in working out volume in real life.

- In pairs, learners use digital devices or other resources to safely play games involving stacking blocks to form cubes and cuboids.
-Learners practice calculating volume of different cubes and cuboids.

How do we calculate volume in real life situations?

KLB Mathematics Grade 4 Learner's Book pg. 123
- Digital devices
- Unit cubes
- Building blocks

- Observation - Oral questions - Written assignments

Measurement

Capacity - Measuring capacity in litres

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

- Measure capacity in litres in real life situations.
- Show interest in measuring capacity.

- In groups, learners measure capacity of containers using a one litre container in real life situations.
-Learners practice measuring capacity of different containers in litres.

How can you measure capacity using arbitrary units?

KLB Mathematics Grade 4 Learner's Book pg. 125
- 1 litre container
- Various containers
- Water

- Observation - Oral questions - Written assignments

Measurement

Capacity - Measuring capacity in litres

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

- Measure capacity in litres in real life situations.
- Show interest in measuring capacity.

- In groups, learners measure capacity of containers using a one litre container in real life situations.
-Learners practice measuring capacity of different containers in litres.

How can you measure capacity using arbitrary units?

KLB Mathematics Grade 4 Learner's Book pg. 125
- 1 litre container
- Various containers
- Water

- Observation - Oral questions - Written assignments

Measurement

Capacity - Making litre containers

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

- Make and use litre containers in measuring capacity.
- Appreciate importance of standard units in measurement.

- In pairs, learners 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.
-Learners use their containers to measure capacity of other containers.

Why do we need standard units of measurement?

KLB Mathematics Grade 4 Learner's Book pg. 126
- 1 litre container
- Locally available materials
- Water or sand

- Observation - Oral questions - Written assignments

Measurement

Capacity - Measuring capacity in ½ litres

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

- Measure capacity in ½ litres in real life situations.
- Show interest in measuring capacity in ½ litres.

- In pairs, learners make ½ litre containers from locally available materials through filling and emptying the container with substances such as water or sand using a 1 litre container.
-In groups, learners use ½ litre containers to measure capacity of other containers.

When would you measure capacity in ½ litres?

KLB Mathematics Grade 4 Learner's Book pg. 127
- 1 litre container
- ½ litre container
- Various containers
- Water or sand

- Observation - Oral questions - Written assignments

Measurement

Capacity - Measuring capacity in ¼ litres

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

- Measure capacity in ¼ litres in real life situations.
- Appreciate measuring capacity in ¼ litres.

- Learners make ¼ litre containers through filling and emptying using a 1 litre container.
-In groups, learners use ¼ litre containers to measure capacity of other containers.

How are ¼ litres related to litres?

KLB Mathematics Grade 4 Learner's Book pg. 128
- 1 litre container
- ¼ litre container
- Various containers
- Water or sand

- Observation - Oral questions - Written assignments

Measurement

Capacity - Measuring capacity in ¼ litres

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

- Measure capacity in ¼ litres in real life situations.
- Appreciate measuring capacity in ¼ litres.

- Learners make ¼ litre containers through filling and emptying using a 1 litre container.
-In groups, learners use ¼ litre containers to measure capacity of other containers.

How are ¼ litres related to litres?

KLB Mathematics Grade 4 Learner's Book pg. 128
- 1 litre container
- ¼ litre container
- Various containers
- Water or sand

- Observation - Oral questions - Written assignments

Measurement

Capacity - Addition of capacity in litres

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

- Work out addition of capacity in litres in real life situations.
- Show interest in addition of capacity.

- In groups, learners add capacity involving litres in real life situations.
-Learners practice solving problems involving addition of capacity.

When do we need to add capacity measurements in real life?

KLB Mathematics Grade 4 Learner's Book pg. 128
- Containers of known capacity
- Number cards
- Place value charts

- Observation - Oral questions - Written assignments

Measurement

Capacity - Addition of capacity in litres

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

- Work out addition of capacity in litres in real life situations.
- Show interest in addition of capacity.

- In groups, learners add capacity involving litres in real life situations.
-Learners practice solving problems involving addition of capacity.

When do we need to add capacity measurements in real life?

KLB Mathematics Grade 4 Learner's Book pg. 128
- Containers of known capacity
- Number cards
- Place value charts

- Observation - Oral questions - Written assignments

Measurement

Capacity - Subtraction of capacity in litres

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

- Work out subtraction of capacity in litres in real life situations.
- Appreciate subtraction of capacity.

- Subtract capacity involving litres in real life situations.
-Learners practice solving problems involving subtraction of capacity.

When do we need to subtract capacity measurements in real life?

KLB Mathematics Grade 4 Learner's Book pg. 130
- Containers of known capacity
- Number cards
- Place value charts

- Observation - Oral questions - Written assignments

Measurement

Capacity - Using digital devices for capacity

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

- Use digital devices to learn about capacity.
- Appreciate use of the litre as a unit of measuring capacity in real life situations.

- In pairs, learners play games involving capacity using containers of different capacities or digital devices for digital games.
-Learners practice solving problems involving capacity using digital tools.

How can technology help us learn about capacity?

KLB Mathematics Grade 4 Learner's Book pg. 131
- Digital devices
- Digital games
- Educational apps

- Observation - Oral questions - Written assignments

Measurement

Mass - Using a kilogram mass to measure mass of objects

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

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

- In groups, learners use one kilogram masses to measure masses of given objects using a beam balance.
-Learners practice measuring mass of different objects in kilograms.

How do we measure mass in kilograms?

KLB Mathematics Grade 4 Learner's Book pg. 132
- 1 kg mass
- Beam balance
- Various objects

- Observation - Oral questions - Written assignments

Measurement

Mass - Using a kilogram mass to measure mass of objects

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

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

- In groups, learners use one kilogram masses to measure masses of given objects using a beam balance.
-Learners practice measuring mass of different objects in kilograms.

How do we measure mass in kilograms?

KLB Mathematics Grade 4 Learner's Book pg. 132
- 1 kg mass
- Beam balance
- Various objects

- Observation - Oral questions - Written assignments

Measurement

Mass - Using ½ kg masses to measure mass of objects

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

- Use ½ kg masses to measure masses of different objects practically.
- Appreciate measuring mass using different units.

- In pairs, learners make a ½ kg mass and use it to measure mass of given objects using a beam balance.
-Learners practice measuring mass of different objects using ½ kg masses.

When would you measure mass in ½ kg?

KLB Mathematics Grade 4 Learner's Book pg. 133
- ½ kg mass
- Beam balance
- Various objects
- Sand or soil

- Observation - Oral questions - Written assignments

Measurement

Mass - Using ¼ kg masses to measure mass of objects

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

- Use ¼ kg masses to measure masses of different objects practically.
- Show interest in measuring mass using ¼ kg masses.

- In groups, learners make a ¼ kg mass and use it to measure mass of given objects using a beam balance and an electronic balance.
-Learners practice measuring mass of different objects using ¼ kg masses.

How are ¼ kg masses related to kg masses?

KLB Mathematics Grade 4 Learner's Book pg. 134
- ¼ kg mass
- Beam balance
- Electronic balance
- Various objects
- Sand or soil

- Observation - Oral questions - Written assignments

Measurement

Mass - Mass in kilogram and ½ kilogram

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

- Relate kilograms to ½ kg and ¼ kg.
- Appreciate relationship between units of mass.

- Learners practice converting between kilograms, ½ kg, and ¼ kg.
-Learners solve problems involving conversion between units of mass.

How are different units of mass related?

KLB Mathematics Grade 4 Learner's Book pg. 135
- 1 kg mass
- ½ kg mass
- ¼ kg mass
- Beam balance

- Observation - Oral questions - Written assignments

Measurement

Mass - Mass in kilogram and ½ kilogram

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

- Relate kilograms to ½ kg and ¼ kg.
- Appreciate relationship between units of mass.

- Learners practice converting between kilograms, ½ kg, and ¼ kg.
-Learners solve problems involving conversion between units of mass.

How are different units of mass related?

KLB Mathematics Grade 4 Learner's Book pg. 135
- 1 kg mass
- ½ kg mass
- ¼ kg mass
- Beam balance

- Observation - Oral questions - Written assignments

Measurement

Mass - Addition of mass in kilograms

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

- Add mass involving kilograms in real life situations.
- Show interest in addition of mass measurements.

- In groups, learners add mass involving kilograms (kg) in real life situations.
-Learners practice solving problems involving addition of mass.

When do we need to add mass measurements in real life?

KLB Mathematics Grade 4 Learner's Book pg. 136
- Beam balance
- Number cards
- Place value charts

- Observation - Oral questions - Written assignments

Measurement

Mass - Addition of mass in kilograms

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

- Add mass involving kilograms in real life situations.
- Show interest in addition of mass measurements.

- In groups, learners add mass involving kilograms (kg) in real life situations.
-Learners practice solving problems involving addition of mass.

When do we need to add mass measurements in real life?

KLB Mathematics Grade 4 Learner's Book pg. 136
- Beam balance
- Number cards
- Place value charts

- Observation - Oral questions - Written assignments

Measurement

Mass - Subtraction of mass in kilograms

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

- Subtract mass involving kilograms in real life situations.
- Appreciate subtraction of mass measurements.

- In groups, learners subtract mass involving kilograms (kg).
-Learners practice solving problems involving subtraction of mass.

When do we need to subtract mass measurements in real life?

KLB Mathematics Grade 4 Learner's Book pg. 137
- Beam balance
- Number cards
- Place value charts

- Observation - Oral questions - Written assignments