Measurements and Geometry

Similarity and Enlargement - Properties of similar figures

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

- Identify properties of similar figures
- Compare corresponding sides and angles of similar figures
- Relate similarity to real life objects like photographs and maps

- Collect objects from the environment and sort similar objects together
- Measure corresponding sides of similar triangles and determine ratios
- Measure corresponding angles of similar figures
- Discuss reasons why objects are considered similar

How do we identify similar figures in our environment?

- Mentor Essential Mathematics pg. 31
- Similar objects (containers, shapes)
- Rulers and protractors
- Digital resources

- Observation - Oral questions - Written assignments

Measurements and Geometry

Similarity and Enlargement - Properties of similar figures

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

- Determine whether given figures are similar
- Calculate ratios of corresponding sides
- Connect similar figures to everyday items like photo frames and tiles

- Work out ratios of corresponding sides of triangles
- Use protractor to measure corresponding angles
- Determine if rectangles are similar by comparing ratios
- Share findings with classmates

What conditions must be met for two figures to be similar?

- Mentor Essential Mathematics pg. 33
- Protractors
- Rulers
- Cut-outs of similar shapes

- Observation - Oral questions - Written tests

Measurements and Geometry

Similarity and Enlargement - Properties of similar figures
Similarity and Enlargement - Centre of enlargement and linear scale factor
Similarity and Enlargement - Linear scale factor

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

- Determine whether given figures are similar
- Calculate ratios of corresponding sides
- Connect similar figures to everyday items like photo frames and tiles

- Determine the centre of enlargement of similar figures
- Locate the centre by joining corresponding vertices
- Recognize how enlargement is used in projectors and magnifying glasses

- Work out ratios of corresponding sides of triangles
- Use protractor to measure corresponding angles
- Determine if rectangles are similar by comparing ratios
- Share findings with classmates

- Trace objects and images on plain paper
- Join corresponding vertices and extend lines to find centre of enlargement
- Measure distances from centre to object and image
- Discuss findings with peers

What conditions must be met for two figures to be similar?
How do we locate the centre of enlargement?

- Mentor Essential Mathematics pg. 33
- Protractors
- Rulers
- Cut-outs of similar shapes
- Mentor Essential Mathematics pg. 37
- Plain paper
- Rulers
- Pencils
- Mentor Essential Mathematics pg. 38
- Graph paper
- Calculators

- Observation - Oral questions - Written tests
- Observation - Oral questions - Written assignments

Measurements and Geometry

Similarity and Enlargement - Drawing images under enlargement
Similarity and Enlargement - Drawing images on Cartesian plane
Similarity and Enlargement - Area scale factor

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

- Draw the image of an object given centre and scale factor
- Construct enlarged images accurately
- Connect enlargement to photocopying and image resizing

- Draw objects on Cartesian plane
- Use given centre and scale factor to locate image points
- Construct images under different scale factors
- Compare object and image dimensions

How do we draw an image under enlargement?

- Mentor Essential Mathematics pg. 40
- Graph paper
- Rulers
- Geometrical instruments
- Mentor Essential Mathematics pg. 41
- Pencils
- Mentor Essential Mathematics pg. 42
- Calculators
- Rulers

- Observation - Practical work - Written assignments

Measurements and Geometry

Reflection - Lines of symmetry in plane figures
Reflection - Lines of symmetry in regular polygons
Reflection - Properties of reflection
Reflection - Drawing images given object and mirror line
Reflection - Reflection along x = 0
Reflection - Reflection along y = 0
Reflection - Reflection along y = x

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

- Identify lines of symmetry in plane figures
- Determine the number of lines of symmetry in different shapes
- Recognize symmetry in everyday objects like doors, windows and leaves

- Draw an image after reflection along the line x = 0
- Determine coordinates of image points when reflected along y-axis
- Connect reflection to creating symmetric designs and logos

- Take a walk and collect 2D objects from the environment
- Fold rectangular and square paper cut-outs to find lines of symmetry
- Count number of fold lines that divide shapes into equal parts
- Share findings with other groups

- Plot triangles on Cartesian plane
- Reflect points along line x = 0
- Record coordinates of object and image points
- Observe pattern in coordinates after reflection

How do we identify lines of symmetry?
What happens to coordinates when reflecting along x = 0?

- Mentor Essential Mathematics pg. 50
- Paper cut-outs
- Scissors
- Various 2D objects
- Mentor Essential Mathematics pg. 52
- Rulers
- Protractors
- Plain paper
- Mentor Essential Mathematics pg. 53
- Plane mirrors
- Mentor Essential Mathematics pg. 54
- Plain paper
- Set squares
- Mentor Essential Mathematics pg. 56
- Graph paper
- Rulers
- Pencils
- Mentor Essential Mathematics pg. 58
- Calculators
- Mentor Essential Mathematics pg. 57

- Observation - Oral questions - Written assignments

Measurements and Geometry

Reflection - Drawing mirror line given object and image on plane surface
Reflection - Drawing mirror line on Cartesian plane

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

- Draw the mirror line given an object and its image on a plane surface
- Construct perpendicular bisectors to locate mirror line
- Apply the concept to determining mirror placement in interior design

- Trace objects and their images on plain paper
- Join corresponding points (object to image)
- Construct perpendicular bisector of the line segment
- Verify that perpendicular bisector is the mirror line

How do we find the mirror line given object and image?

- Mentor Essential Mathematics pg. 60
- Plain paper
- Rulers
- Compasses
- Mentor Essential Mathematics pg. 61
- Graph paper

- Observation - Practical work - Written tests

Measurements and Geometry

Reflection - Application in real life situations
Trigonometry - Identifying sides of a right-angled triangle
Trigonometry - Tangent ratio
Trigonometry - Applications of tangent ratio
Trigonometry - Sine ratio
Trigonometry - Applications of sine ratio

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

- Apply reflection in real-life situations
- Solve problems involving reflection
- Use reflection concepts in understanding driving mirrors and road safety

- Apply tangent ratio to solve problems
- Calculate tangent from real-life situations
- Use tangent in determining slopes of ramps and roof pitches

- Discuss uses of reflection in real life
- Solve problems involving town layouts and architectural designs
- Work with peers to apply reflection to practical situations
- Present findings to class

- Calculate tangent of angles formed by ladders and walls
- Work out tangent of angles in roof designs
- Solve problems involving ramps and inclined surfaces
- Share solutions with classmates

How is reflection used in day-to-day activities?
How is tangent ratio applied in real life?

- Mentor Essential Mathematics pg. 63
- Graph paper
- Rulers
- Digital resources
- Mentor Essential Mathematics pg. 65
- Ladders
- Protractors
- Rulers
- Mentor Essential Mathematics pg. 67
- Calculators
- Mentor Essential Mathematics pg. 68
- Calculators
- Rulers
- Reference books
- Mentor Essential Mathematics pg. 69
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 71
- Digital resources

- Observation - Oral questions - Written tests
- Observation - Oral questions - Written assignments

Measurements and Geometry

Trigonometry - Cosine ratio
Trigonometry - Applications of cosine ratio
Trigonometry - Sines and cosines of complementary angles

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

- Determine the cosine of acute angles in a right-angled triangle
- Calculate cosine ratios from given measurements
- Apply cosine ratio to navigation and distance calculations

- Measure adjacent side and hypotenuse in similar triangles
- Calculate ratio of adjacent to hypotenuse for angle θ
- Observe that the ratio is constant for the same angle
- Work out cosine of angles in various triangles

What is the cosine of an angle?

- Mentor Essential Mathematics pg. 72
- Rulers
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 74
- Calculators
- Reference books
- Mentor Essential Mathematics pg. 75
- Scientific calculators
- Reference books
- Digital resources

- Observation - Oral questions - Written tests

Measurements and Geometry

Trigonometry - Solving equations involving complementary angles
Trigonometry - Making a clinometer
Trigonometry - Angle of elevation
Trigonometry - Problems on angle of elevation

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

- Solve equations involving sines and cosines of complementary angles
- Apply the relationship sin θ = cos(90°-θ)
- Use complementary angle properties in practical calculations

- Apply trigonometric ratios to angles of elevation
- Calculate heights using angles of elevation
- Use angle of elevation in determining heights of flagpoles, trees and buildings

- Solve equations like sin θ = cos 40°
- Work out problems involving sin(x-55) = cos x
- Apply complementary angle relationships
- Share solutions with peers

- Use clinometer to measure angle of elevation of tall objects
- Measure horizontal distance from object
- Apply trigonometric ratios to calculate heights
- Compare calculated heights with actual measurements

How do we solve equations involving complementary angles?
How do we use angles of elevation to find heights?

- Mentor Essential Mathematics pg. 76
- Scientific calculators
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 77
- Manila paper
- Blackboard protractor
- String and weight
- Mentor Essential Mathematics pg. 79
- Clinometers
- Tape measures
- Calculators
- Mentor Essential Mathematics pg. 80
- Calculators
- Rulers
- Exercise books

- Observation - Oral questions - Written assignments
- Observation - Practical work - Written tests

Measurements and Geometry

Trigonometry - Angle of depression

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

- Apply trigonometric ratios to angles of depression
- Calculate distances using angles of depression
- Use angle of depression in aviation and marine navigation

- Discuss meaning of angle of depression
- Draw diagrams showing angles of depression
- Apply trigonometric ratios to find distances
- Solve problems involving observers on cliffs and buildings

How do we use angles of depression to find distances?

- Mentor Essential Mathematics pg. 80
- Calculators
- Rulers
- Digital resources

- Observation - Oral questions - Written tests

Measurements and Geometry

Trigonometry - Application in real life situations
Area of Polygons - Area of triangle given two sides and an included angle
Area of Polygons - Problems on area of triangle
Area of Polygons - Heron's Formula
Area of Polygons - Problems using Heron's Formula
Area of Polygons - Area of a rhombus

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

- Solve combined problems on angles of elevation and depression
- Apply trigonometry to various real-life scenarios
- Use trigonometry in determining distances between ships, aircraft heights and building measurements

- Determine the area of a triangle given three sides using Heron's Formula
- Calculate semi-perimeter of triangles
- Apply Heron's formula to irregular triangular plots and badges

- Solve problems involving two ships viewed from cliff
- Calculate distances and heights in combined scenarios
- Use digital resources to explore more applications
- Present solutions to class

- Draw right-angled triangle with given measurements
- Calculate perimeter and semi-perimeter
- Apply Heron's formula: √[s(s-a)(s-b)(s-c)]
- Compare with area calculated using other methods

How is trigonometry used in real life?
How do we find the area of a triangle using Heron's Formula?

- Mentor Essential Mathematics pg. 81
- Calculators
- Digital resources
- Reference books
- Mentor Essential Mathematics pg. 84
- Rulers
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 85
- Exercise books
- Mentor Essential Mathematics pg. 86
- Calculators
- Rulers
- Scientific calculators
- Mentor Essential Mathematics pg. 87
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 88
- Protractors
- Calculators

- Observation - Oral questions - Written assignments

Measurements and Geometry

Area of Polygons - Area of rhombus given side and angle
Area of Polygons - Area of a parallelogram
Area of Polygons - Area of parallelogram using ab sin θ

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

- Calculate area of rhombus given side and included angle
- Apply the formula Area = a² sin θ
- Use rhombus area calculations for badges, logos and decorations

- Draw rhombus-shaped badge with given side and angle
- Calculate lengths of diagonals using trigonometry
- Work out area using ½ × d₁ × d₂
- Verify using formula a² sin θ

How do we find area of rhombus given side and angle?

- Mentor Essential Mathematics pg. 89
- Calculators
- Rulers
- Protractors
- Mentor Essential Mathematics pg. 92
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 94
- Exercise books

- Observation - Oral questions - Written tests

Measurements and Geometry

Area of Polygons - Area of a regular pentagon
Area of Polygons - Problems on area of pentagon
Area of Polygons - Area of a regular hexagon
Area of Polygons - Application in real life situations

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

- Determine the area of a regular pentagon
- Divide pentagon into triangles and calculate total area
- Apply pentagon area to flower bed designs and pizza box lids

- Determine the area of a regular hexagon
- Divide hexagon into 6 triangles and calculate total area
- Apply hexagon area to floor tiling and road sign designs

- Draw regular pentagon and divide into 5 triangles
- Measure radius from centre to vertex
- Calculate area of one triangle
- Multiply by 5 to get total area

- Draw regular hexagon and divide into 6 triangles
- Measure radius from centre to vertex
- Calculate area of one triangle
- Multiply by 6 to get total area

How do we find the area of a regular pentagon?
How do we find the area of a regular hexagon?

- Mentor Essential Mathematics pg. 95
- Rulers
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 97
- Calculators
- Exercise books
- Digital resources
- Mentor Essential Mathematics pg. 96
- Rulers
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 98
- Calculators
- Digital resources
- Reference books

- Observation - Oral questions - Written assignments

Measurements and Geometry

Area of a Part of a Circle - Area of a sector
Area of a Part of a Circle - Problems on area of sector
Area of a Part of a Circle - Area of a segment

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

- Determine the area of a sector of a circle
- Apply the formula Area = θ/360 × πr²
- Calculate areas of hand-fans, sprinkler coverage and cake toppings

- Draw circle and mark sector AOB
- Measure radius and angle subtended at centre
- Apply formula θ/360 × πr²
- Share findings with classmates

How do we find the area of a sector?

- Mentor Essential Mathematics pg. 101
- Compasses
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 102
- Calculators
- Rulers
- Exercise books
- Mentor Essential Mathematics pg. 103

- Observation - Oral questions - Written assignments

Measurements and Geometry

Area of a Part of a Circle - Problems on area of segment
Area of a Part of a Circle - Area swept by gate
Area of a Part of a Circle - Problems on curved paths and decorations
Area of a Part of a Circle - Clock and sprinkler problems
Area of a Part of a Circle - Combined problems
Surface Area of Solids - Nets of cones

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

- Solve problems on area of segments
- Calculate areas of segment-shaped objects
- Apply segment area to window decorations and promotional stands

- Solve problems involving clock hands and sprinklers
- Calculate area covered by minute and hour hands
- Apply sector area to irrigation system design and garden planning

- Calculate area of kitchen garden segments
- Work out area of school logo designs
- Solve problems on triangular glass windows
- Share solutions with classmates

- Calculate area swept by minute hand of clock
- Work out area covered by hour hand moving through 180°
- Determine area watered by rotating sprinklers
- Discuss efficient irrigation systems

How do we solve problems involving segments?
How do we apply sector area to clocks and sprinklers?

- Mentor Essential Mathematics pg. 105
- Calculators
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 107
- Tape measures
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 108
- Rulers
- Digital resources
- Mentor Essential Mathematics pg. 110
- Calculators
- Clocks
- Reference books
- Mentor Essential Mathematics pg. 111
- Exercise books
- Digital resources
- Mentor Essential Mathematics pg. 112
- Manila paper
- Scissors
- Cone-shaped objects

- Observation - Oral questions - Written tests
- Observation - Oral questions - Written assignments

Measurements and Geometry

Surface Area of Solids - Surface area of a cone from its net
Surface Area of Solids - Surface area of cone using formula
Surface Area of Solids - Nets of pyramids

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

- Determine surface area of cones from nets
- Calculate area of sector and circular base
- Apply cone surface area to calculating material for making party hats and funnels

- Measure angle, radius of sector and radius of circular base
- Calculate area of sector using θ/360 × πr²
- Calculate area of circular base using πr²
- Add to get total surface area

How do we find the surface area of a cone from its net?

- Mentor Essential Mathematics pg. 113
- Cone nets
- Protractors
- Calculators
- Mentor Essential Mathematics pg. 114
- Calculators
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 115
- Manila paper
- Scissors
- Rulers

- Observation - Oral questions - Written tests

Measurements and Geometry

Surface Area of Solids - Surface area of square-based pyramid
Surface Area of Solids - Surface area of rectangular-based pyramid
Surface Area of Solids - Surface area of a sphere
Surface Area of Solids - Surface area of a hemisphere
Surface Area of Solids - Surface area of frustum of a cone
Surface Area of Solids - Problems on frustum of a cone

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

- Determine surface area of square-based pyramids from nets
- Calculate area of square base and triangular faces
- Apply to gift box designs, glass covers for skylights and decorative items

- Calculate the surface area of a solid hemisphere
- Apply the formula 3πr²
- Use hemisphere surface area in calculating material for bowls, domes and decorative half-spheres

- Sketch net of square-based pyramid
- Calculate area of square base
- Calculate area of four identical triangular faces
- Add to get total surface area

- Cut spherical object (orange) into two equal halves
- Estimate radius of hemisphere
- Calculate curved surface area (2πr²)
- Add circular base area to get total (3πr²)

How do we find surface area of a square-based pyramid?
How do we find the surface area of a hemisphere?

- Mentor Essential Mathematics pg. 116
- Graph paper
- Calculators
- Rulers
- Mentor Essential Mathematics pg. 117
- Mentor Essential Mathematics pg. 120
- Spherical objects
- Rulers
- Calculators
- Mentor Essential Mathematics pg. 121
- Oranges
- Knives
- Calculators
- Mentor Essential Mathematics pg. 122
- Manila paper
- Scissors
- Mentor Essential Mathematics pg. 124
- Calculators
- Exercise books
- Reference books

- Observation - Oral questions - Written assignments
- Observation - Practical work - Written tests

Measurements and Geometry

Surface Area of Solids - Surface area of frustum of a pyramid

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

- Determine surface area of frustum of a square-based pyramid
- Calculate lateral surface area using ½(P₁ + P₂) × L
- Apply to lampshade designs, water tanks and display stands

- Make model of pyramid and cut parallel to base
- Identify top perimeter (P₁), bottom perimeter (P₂) and slant height (L)
- Calculate lateral surface area: ½(P₁ + P₂) × L
- Add areas of top and bottom to get total surface area

How do we find surface area of a frustum of a pyramid?

- Mentor Essential Mathematics pg. 125
- Manila paper
- Scissors
- Calculators

- Observation - Practical work - Written assignments

Measurements and Geometry

Surface Area of Solids - Problems on frustum of a pyramid
Volume and Capacity - Volume of a cone
Volume and Capacity - Problems on volume of cones
Volume and Capacity - Volume of cone given slant height
Volume and Capacity - Volume of a pyramid
Volume and Capacity - Problems on volume of pyramids

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

- Solve problems on surface area of frustums of pyramids
- Calculate surface area of rectangular-based pyramid frustums
- Apply to hollow lampshades, counter designs, statue stands and open water tanks

- Calculate volume of cone given slant height and radius
- Use Pythagoras theorem to find vertical height
- Apply to cone-shaped ornaments and decorative items

- Calculate areas of trapezoidal faces for rectangular-based frustums
- Work out surface area of hollow lampshades (lateral only)
- Solve problems on counters and statue stands
- Determine material needed for multiple lampshades

- Draw cone with slant height and radius labelled
- Apply Pythagorean relationship to find vertical height
- Calculate volume using V = ⅓πr²h
- Solve problems involving slant heights

How are frustums of pyramids used in real life?
How do we find volume when slant height is given?

- Mentor Essential Mathematics pg. 127
- Calculators
- Exercise books
- Digital resources
- Mentor Essential Mathematics pg. 132
- Manila paper
- Sand
- Calculators
- Mentor Essential Mathematics pg. 133
- Reference books
- Mentor Essential Mathematics pg. 134
- Calculators
- Rulers
- Exercise books
- Mentor Essential Mathematics pg. 135
- Pyramid models
- Calculators
- Mentor Essential Mathematics pg. 136
- Exercise books
- Reference books

- Observation - Oral questions - Written tests
- Observation - Oral questions - Written assignments

Measurements and Geometry

Volume and Capacity - Volume of frustum of a cone
Volume and Capacity - Problems on frustum of a cone
Volume and Capacity - Volume of frustum of a pyramid

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

- Determine volume of frustum of a cone
- Calculate volume by subtracting smaller cone from larger cone
- Apply to bucket designs and lampshade constructions

- Make model of cone and cut parallel to base
- Measure radii and heights of both cones
- Calculate volumes of original and cut-off cones
- Subtract to get volume of frustum

How do we find volume of a frustum of a cone?

- Mentor Essential Mathematics pg. 138
- Manila paper
- Scissors
- Calculators
- Mentor Essential Mathematics pg. 140
- Calculators
- Exercise books
- Digital resources
- Mentor Essential Mathematics pg. 142

- Observation - Practical work - Written tests

Measurements and Geometry

Volume and Capacity - Problems on frustum of a pyramid
Volume and Capacity - Volume of composite solids
Volume and Capacity - Capacity problems

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

- Solve problems on volume of frustum of a pyramid
- Calculate capacity of pyramid frustum containers
- Apply to water troughs, flower vases and lunch boxes

- Convert between volume and capacity units
- Solve problems involving litres and millilitres
- Apply to water storage, milk packaging and fuel tank capacities

- Calculate volume of water troughs cut from pyramids
- Work out capacity of traditional woven baskets
- Determine volume of flower vases and lunch boxes
- Convert to litres and millilitres

- Convert cubic metres to litres
- Convert cubic centimetres to millilitres
- Calculate capacity of various containers
- Solve real-life problems on water and fuel storage

How is frustum of pyramid volume applied?
Why is the knowledge of volume and capacity useful?

- Mentor Essential Mathematics pg. 144
- Calculators
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 145
- Models of solids
- Digital resources

- Mentor Essential Mathematics pg. 146
- Calculators
- Containers
- Exercise books

- Observation - Oral questions - Written assignments

Measurements and Geometry

Volume and Capacity - Combined problems
Commercial Arithmetic I - Preparing a budget
Commercial Arithmetic I - Balancing a budget
Commercial Arithmetic I - Calculating discounts

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

- Solve combined problems on volume and capacity
- Apply volume concepts to various real-life situations
- Use volume and capacity in water trough designs for livestock and reservoir planning

- Solve mixed problems on cones, pyramids and frustums
- Calculate capacity of mugs, buckets and tanks
- Work out dimensions when capacity is given
- Review all concepts on volume and capacity

How do we apply volume and capacity in daily life?

- Mentor Essential Mathematics pg. 147
- Calculators
- Digital resources
- Reference books
- Mentor Essential Mathematics pg. 148
- Sample budgets
- Exercise books
- Calculators
- Mentor Essential Mathematics pg. 149
- Chart paper
- Mentor Essential Mathematics pg. 150
- Price lists
- Shopping receipts

- Observation - Oral questions - Written tests

Measurements and Geometry

Commercial Arithmetic I - Percentage discount
Commercial Arithmetic I - Calculating commission
Commercial Arithmetic I - Percentage commission and tiered rates
Commercial Arithmetic I - Profit and percentage profit
Commercial Arithmetic I - Loss and percentage loss
Commercial Arithmetic I - Currency exchange rates
Commercial Arithmetic I - Currency conversion problems

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

- Calculate percentage discount
- Determine selling price after discount
- Compare discounts offered by different shops to make wise purchasing decisions

- Determine profit made in sale of goods
- Calculate percentage profit
- Apply profit calculations to small businesses like mandazi selling and craft making

- Calculate percentage discount using formula: (Discount/Marked price) × 100%
- Work out selling price when percentage discount is given
- Compare prices at different shops offering different discounts
- Determine which shop offers better value

- Discuss meaning of cost price and selling price
- Calculate profit: Selling price - Cost price
- Work out percentage profit: (Profit/Cost price) × 100%
- Solve problems on businesses making profits

How do we calculate percentage discount?
How do we determine profit in business?

- Mentor Essential Mathematics pg. 151
- Calculators
- Price catalogues
- Exercise books
- Mentor Essential Mathematics pg. 153
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 154
- Digital resources
- Mentor Essential Mathematics pg. 155
- Calculators
- Exercise books
- Reference books
- Mentor Essential Mathematics pg. 157
- Case studies
- Mentor Essential Mathematics pg. 160
- Currency exchange tables
- Digital resources
- Mentor Essential Mathematics pg. 162
- Exercise books

- Observation - Oral questions - Written tests
- Observation - Oral questions - Written assignments