Algebra

Algebraic Expressions - Factorisation of algebraic expressions

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

- Define factorisation as the reverse of expansion
- Identify the highest common factor (HCF) in algebraic expressions
- Appreciate the use of factorisation in simplifying expressions

- Make three sets of cards showing algebraic expressions and their factored forms
- Match cards from different rows to form equations
- Discuss and identify common factors in terms
- Write HCF in front of brackets and remaining factors inside

How do we factorise algebraic expressions?

- Master Mathematics Grade 8, pg. 65
- Number cards
- Algebraic expression cards
- Charts

- Observation - Card matching activity - Oral questions

Algebra

Algebraic Expressions - Identifying like and unlike terms in factorisation
Algebraic Expressions - Simplification of algebraic fractions

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

- Explain the concept of like and unlike terms
- Find common factors for different sets of terms
- Show systematic approach in identifying factors

- Discuss and identify like and unlike terms
- Find common factors from given sets of algebraic terms
- Practice factorising expressions with numerical and variable common factors
- Work in groups to factorise various expressions

What makes terms like or unlike in algebra?

- Master Mathematics Grade 8, pg. 67
- Factor cards
- Worksheets
- Group work materials
- Master Mathematics Grade 8, pg. 68
- Fraction charts
- LCM charts

- Written exercises - Group presentations - Class activities

Algebra

Algebraic Expressions - Advanced simplification practice

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

- Describe steps for simplifying complex algebraic fractions
- Simplify algebraic fractions involving multiple operations
- Show confidence in working with algebraic fractions

- Practice writing fractions as single fractions
- Simplify fractions with algebraic denominators
- Solve problems involving algebraic fractions
- Work through real-life applications

What strategies help us simplify complex algebraic fractions?

- Master Mathematics Grade 8, pg. 69
- Practice worksheets
- Real-life problem cards
- Calculators

- Written assignments - Class tests - Oral questions

Algebra

Algebraic Expressions - Using IT devices and application

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

- Identify IT resources for learning algebra
- Use IT devices to work out algebra exercises and drag-drop activities
- Enjoy using algebraic expressions in real life situations

- Use IT devices to work out exercises and activities in algebra
- Engage in drag and drop activities of grouping similar terms
- Play online games simplifying algebraic expressions
- Discuss applications with peers and parents

How can technology enhance our understanding of algebra?

- Master Mathematics Grade 8, pg. 71
- Digital devices
- Internet access
- Algebra apps/software

- Observation - Digital assessment - Participation

Algebra

Linear Equations - Forming linear equations in two unknowns
Linear Equations - More practice on forming equations

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

- Define linear equations in two unknowns
- Form linear equations from real-life situations using two variables
- Show interest in forming equations from word problems

- Put masses on beam balance and add marbles to balance
- Give letters to represent unknowns
- Role play shopping activities to form equations
- Write equations from balancing scenarios

How do we solve linear equations in two unknowns?

- Master Mathematics Grade 8, pg. 72
- Beam balance
- Masses (500g)
- Marbles
- Shopping scenario cards
- Master Mathematics Grade 8, pg. 73
- Word problem cards
- Real-life scenario cards
- Worksheets

- Observation - Practical activities - Oral questions

Algebra

Linear Equations - Solving by substitution method

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

- Explain the substitution method for solving simultaneous equations
- Solve linear equations in two unknowns using substitution systematically
- Show precision in solving equations

- Write equations from fruit vendor scenario
- Name equations as (i) and (ii)
- Write one variable in terms of another
- Replace and simplify to find values of unknowns

How do we use substitution method to solve linear equations?

- Master Mathematics Grade 8, pg. 74
- Fruit pictures
- Equation cards
- Step-by-step charts

- Written tests - Practical exercises - Oral questions

Algebra

Linear Equations - Advanced practice on substitution method

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

- Describe the complete process of substitution method
- Solve complex simultaneous equations by substitution
- Demonstrate mastery of substitution technique

- Practice solving equations with fractions using substitution
- Work through problems involving costs and quantities
- Solve problems about carpentry and furniture making
- Apply substitution to number problems

What are the key steps in substitution method?

- Master Mathematics Grade 8, pg. 75
- Practice worksheets
- Real-life problem cards
- Calculators

- Written assignments - Problem-solving - Class tests

Algebra

Linear Equations - Solving by elimination method

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

- Explain the elimination method for solving simultaneous equations
- Solve linear equations using elimination method systematically
- Appreciate the efficiency of elimination method

- Form equations from shopping scenarios (plates and cups)
- Multiply equations to make coefficients equal
- Subtract corresponding parts to eliminate one variable
- Solve for remaining variable and substitute back

How do we solve equations using elimination method?

- Master Mathematics Grade 8, pg. 76
- Shopping scenario cards
- Elimination charts
- Step-by-step guides

- Written exercises - Practical work - Oral questions

Algebra

Linear Equations - More practice on elimination method
Linear Equations - Application in real-life situations

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

- Identify when to use elimination method
- Solve various simultaneous equations by elimination efficiently
- Show confidence in choosing appropriate methods

- Practice solving equations involving bread and tea leaves
- Work through problems with different coefficients
- Solve problems about costs of items
- Compare elimination and substitution methods

When is elimination method more suitable than substitution?

- Master Mathematics Grade 8, pg. 78
- Comparison charts
- Practice worksheets
- Method selection guides
- Master Mathematics Grade 8, pg. 79
- Video resources
- Real-life scenario cards
- Digital devices
- Application worksheets

- Written tests - Class activities - Problem-solving

Measurements

Circles - Circumference of a circle

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

- Define circumference as the distance around a circle
- Calculate the circumference using the formula C=πD or C=2πr
- Appreciate the relationship between diameter and circumference

- Take a string and two sticks to draw circles on the ground
- Measure the distance between fixed points
- Use string and ruler to measure total length of line drawn
- Compare diameter measurement with circumference

How do we determine the circumference of a circle?

- Master Mathematics Grade 8, pg. 81
- Strings
- Sticks
- Rulers
- Circular objects

- Practical activities - Oral questions - Written exercises

Measurements

Circles - Finding circumference of circular objects

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

- Identify circular objects in the environment
- Work out the circumference of different circular objects accurately
- Show interest in measuring circular objects

- Discuss and find circumference of different circular objects in the environment
- Complete tables to find missing measurements (radius, diameter, circumference)
- Calculate circumference of bicycle wheels and clock hands
- Solve real-life problems involving wheels and revolutions

Where do we find circles in our environment?

- Master Mathematics Grade 8, pg. 82
- Bicycle wheels
- Clock models
- Measuring tape
- Circular objects

- Written tests - Practical work - Problem-solving

Measurements

Circles - Length of an arc

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

- Define an arc as a portion of circumference
- Calculate arc length using the formula Arc length = (θ/360) × 2πr
- Value the importance of arc calculations in real life

- Make dummy clock using available resources
- Trace path of minute hand in one revolution
- Measure angles at centre and calculate arc lengths
- Use cut outs to relate arcs to sectors

How do we calculate the length of an arc?

- Master Mathematics Grade 8, pg. 84
- Cartons for clock
- Protractors
- Strings
- Rulers

- Practical exercises - Written assignments - Oral questions

Measurements

Circles - Perimeter of a sector
Circles - Application and use of IT resources

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

- Explain what a sector is and identify minor and major sectors
- Calculate perimeter of a sector using the formula: Perimeter = (θ/360 × 2πr) + 2r
- Show systematic approach in calculating sector perimeters

- Draw circles and mark points to form sectors
- Use string and ruler to determine arc length and add radii
- Measure angles at centre
- Calculate perimeter using formula and compare with measured values

How do we calculate the perimeter of a sector?

- Master Mathematics Grade 8, pg. 86
- Drawing instruments
- Strings
- Rulers
- Protractors
- Master Mathematics Grade 8, pg. 87
- Digital devices
- Internet access
- Real-life scenario cards

- Written tests - Class activities - Problem-solving

Measurements

Area - Area of a circle

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

- Explain how the formula for area of circle is derived
- Calculate area of a circle using the formula A = πr²
- Appreciate the importance of knowing circle areas

- Draw and cut circles into equal sections
- Arrange sections to form rectangle-like shape
- Relate sides of rectangle to radius of circle
- Work out area of rectangle formed

How do we calculate the area of a circle?

- Master Mathematics Grade 8, pg. 88
- Plain paper
- Scissors
- Rulers
- Circular cut-outs

- Practical work - Written exercises - Oral questions

Measurements

Area - Calculating areas of circles with different radii

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

- State the formula for area of a circle
- Calculate areas of circles given radius or diameter
- Show accuracy in area calculations

- Calculate areas of circles with various radii
- Find radius when area is given
- Solve problems involving circular mats and grazing fields
- Work out problems involving wire reshaping

What is the relationship between radius and area?

- Master Mathematics Grade 8, pg. 89
- Calculators
- Worksheets
- Problem cards

- Written tests - Problem-solving - Class activities

Measurements

Area - Area of a sector of a circle
Area - Surface area of cubes

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

- Define a sector as a fraction of a circle
- Calculate area of a sector using the formula: Area = (θ/360) × πr²
- Value precision in sector calculations

- Draw circles and fold into equal parts
- Calculate area using angle and radius
- Use formula to find sector areas
- Compare calculated areas with measured areas

How do we find the area of a sector?

- Master Mathematics Grade 8, pg. 91
- Drawing instruments
- Protractors
- Calculators
- Paper for folding
- Master Mathematics Grade 8, pg. 92
- Cube models
- Rulers
- Measuring tape
- Worksheets

- Written exercises - Practical activities - Oral questions

Measurements

Area - Surface area of cuboids

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

- Identify that cuboids have three pairs of equal rectangular faces
- Calculate surface area of cuboids systematically
- Appreciate applications of cuboid surface areas

- Pick textbooks and measure length, width, height
- Calculate area of each surface
- Use models to understand pairs of equal sides
- Derive formula for surface area

How is surface area of cuboid different from cube?

- Master Mathematics Grade 8, pg. 94
- Cuboid objects
- Rulers
- Cartons
- Measuring instruments

- Written assignments - Class activities - Oral questions

Measurements

Area - Surface area of cylinders

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

- Explain that a cylinder opens to form two circles and a rectangle
- Calculate curved surface area using formula: CSA = 2πrh
- Show systematic approach in cylinder calculations

- Select paper or plastic cylinders
- Cut out top and bottom circles
- Slit open hollow cylindrical part
- Measure opened figure and relate to circumference

How do we find surface area of cylinders?

- Master Mathematics Grade 8, pg. 97
- Cylindrical objects
- Scissors
- Rulers
- Paper cylinders

- Practical exercises - Written tests - Problem-solving

Measurements

Area - Closed and open cylinders

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

- Distinguish between closed, open cylinders and pipes
- Calculate total surface area including circular ends
- Apply formulas to solve real-life problems

- Calculate total surface area of closed cylinders
- Work out surface area of open tanks and pipes
- Solve problems involving petrol tanks and water pipes
- Calculate surface area of semi-cylindrical troughs

When do we use different cylinder formulas?

- Master Mathematics Grade 8, pg. 99
- Cylinder models
- Calculators
- Real-life scenario cards

- Written assignments - Problem-solving - Class tests

Measurements

Area - Surface area of triangular prisms
Area - Applications of triangular prisms

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

- Identify the faces that make up a triangular prism
- Calculate surface area as sum of individual faces
- Value accuracy in prism calculations

- Study triangular prism objects
- Count number of faces
- Identify triangular and rectangular faces
- Calculate area of each face and find total

How do we calculate surface area of triangular prisms?

- Master Mathematics Grade 8, pg. 100
- Prism models
- Rulers
- Measuring instruments
- Worksheets
- Master Mathematics Grade 8, pg. 102
- Real-life problem cards
- Calculators

- Written tests - Practical work - Oral questions

Measurements

Area - Area of irregular shapes using square grids

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

- Explain the method for estimating area of irregular shapes
- Estimate areas by counting full and partial squares
- Show patience in counting and estimating

- Select graph paper and trace leaf outlines
- Count number of full squares enclosed
- Count partial squares and divide by 2
- Add full squares to half of partial squares

How do we estimate areas of irregular shapes?

- Master Mathematics Grade 8, pg. 103
- Graph paper
- Square grids
- Leaves
- Pencils

- Practical activities - Written exercises - Observation

Measurements

Area - Estimating areas of maps and other irregular shapes

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

- Apply square grid method to various irregular shapes
- Estimate areas of maps, assembly zones, and hand traces
- Promote use of area estimation in real life

- Estimate area of fire assembly zones
- Work out area of constituency maps
- Estimate area of Kenya map
- Trace palm of hand and estimate its area

What are practical uses of estimating irregular areas?

- Master Mathematics Grade 8, pg. 105
- Graph paper
- Maps
- Tracing paper
- Calculators

- Portfolio assessment - Practical work - Written assignments

Measurements

Money - Interest and principal
Money - Calculating simple interest

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

- Define interest as extra money paid on borrowed amount
- Define principal as money borrowed
- Appreciate understanding of financial terms

- Discuss amount of money that can be borrowed from mobile money providers
- Calculate difference between amount borrowed and paid back
- Identify institutions that offer loans
- Complete tables relating principal, interest and total amount

What is interest in money?

- Master Mathematics Grade 8, pg. 107
- Sample loan documents
- Calculators
- Financial scenario cards
- Master Mathematics Grade 8, pg. 109
- Formula charts
- Loan scenario cards

- Written exercises - Oral questions - Class activities

Measurements

Money - Applications of simple interest

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

- Discuss various situations where simple interest applies
- Calculate amount paid back including interest
- Apply simple interest to solve real-life problems

- Calculate interest for businessmen borrowing from financial institutions
- Work out amount in bank accounts after interest
- Find rate of simple interest from given information
- Calculate interest earned on deposits

Where do we use simple interest in real life?

- Master Mathematics Grade 8, pg. 110
- Calculators
- Real-life problem cards
- Bank documents (samples)

- Written assignments - Problem-solving - Oral presentations

Measurements

Money - Compound interest calculation step by step

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

- Define compound interest as interest on principal and previous interest
- Calculate compound interest year by year up to three years
- Value systematic approach in compound interest

- Discuss Mrs. Rono's investment in women groups
- Calculate interest for first year and add to principal
- Use new total as principal for second year
- Continue process up to three years

How is compound interest different from simple interest?

- Master Mathematics Grade 8, pg. 112
- Calculators
- Step-by-step charts
- Comparison worksheets

- Written tests - Practical exercises - Class tests

Measurements

Money - Working out appreciation per annum

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

- Define appreciation as gain in value of a commodity
- Calculate appreciation using compound interest method
- Show understanding that appreciation is calculated like compound interest

- Discuss meaning of appreciation in relation to monetary value
- List items that appreciate in value
- Calculate appreciation of land value year by year
- Apply appreciation formula to various scenarios

What items appreciate in value and why?

- Master Mathematics Grade 8, pg. 115
- Calculators
- Appreciation scenario cards
- Charts

- Written exercises - Problem-solving - Oral questions

Measurements

Money - Working out depreciation per annum
Money - Hire purchase

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

- Define depreciation as loss in value of a commodity
- Calculate depreciation step by step up to three years
- Appreciate that depreciation helps in making purchasing decisions

- Discuss items that depreciate in value
- Calculate depreciation of vehicles and electronics
- Work through depreciation year by year
- Compare depreciation with appreciation

What is depreciation and how do we calculate it?

- Master Mathematics Grade 8, pg. 116
- Calculators
- Depreciation charts
- Real-life examples
- Master Mathematics Grade 8, pg. 117
- Hire purchase documents
- Price comparison charts

- Written tests - Class activities - Problem-solving

Measurements

Money - Visiting financial institutions and using IT for shopping

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

- Discuss information gathered from financial institutions
- Use IT to access online shopping platforms and identify terms of sale
- Spend money responsibly on needs and leisure

- Visit or invite resource persons from banks and SACCOs
- Gather information about interest rates offered on deposits
- Use IT to access online shopping platforms
- Discuss terms of sale for consumer awareness and protection

How do we make informed financial decisions?

- Master Mathematics Grade 8, pg. 118
- Digital devices
- Internet access
- Financial institution brochures
- Guest speakers

- Portfolio assessment - Presentations - Reflection journals - Self-assessment

4.0: Geometry

4.1: Geometrical Constructions - Constructing parallel lines using ruler and compasses
4.1: Geometrical Constructions - Constructing parallel lines using set square and ruler
4.1: Geometrical Constructions - Constructing perpendicular bisector of a line

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

- Define parallel lines
- Construct parallel lines using a ruler and pair of compasses
- Appreciate the importance of accurate geometric constructions

- Discuss the concept of parallel lines in real life
- Follow step-by-step construction procedure using compass arcs
- Draw a line and mark a point above it
- Use compass arcs to construct parallel line through the point
- Compare constructed lines with classmates

How can we construct parallel lines without measuring angles?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Pair of compasses
- Pencil
- Plain paper
- Set square
- Drawing paper
- Protractor

- Observation - Practical construction tasks - Oral questions

4.0: Geometry

4.1: Geometrical Constructions - Constructing perpendicular from a point to a line using compasses
4.1: Geometrical Constructions - Constructing perpendicular using set square and ruler

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

- Explain the method of constructing perpendicular from a point to a line
- Construct perpendicular from a point to a line using compasses and ruler
- Demonstrate patience in following construction steps

- Draw a line and mark point above it
- Use compass to draw arc crossing the line at two points
- Draw intersecting arcs from these points
- Join point to arc intersection
- Measure angles to verify perpendicularity

How do we find the shortest distance from a point to a line?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Pair of compasses
- Protractor
- Plain paper
- Set square
- Pencil
- Drawing paper

- Observation - Oral questions - Practical tasks

4.0: Geometry

4.1: Geometrical Constructions - Proportional division of a line
4.1: Geometrical Constructions - Sum of interior angles of polygons
4.1: Geometrical Constructions - Exterior angles of polygons

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

- State the method of dividing a line proportionally
- Apply the method of proportional division to divide lines into equal parts
- Demonstrate accuracy in geometric constructions

- Draw line of given length
- Draw auxiliary line at suitable angle
- Mark equal intervals along auxiliary line using compasses
- Join last point to end of original line
- Draw parallel lines through other points
- Verify equal divisions on original line

How can we divide a line without measuring its length?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Pair of compasses
- Set square
- Pencil
- Protractor
- Calculator
- Chart showing polygon properties

- Observation - Practical tasks - Written tests

4.0: Geometry

4.1: Geometrical Constructions - Constructing regular triangles
4.1: Geometrical Constructions - Constructing regular quadrilaterals (squares)

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

- Identify properties of regular triangles
- Construct equilateral triangle using ruler and compasses
- Show precision in constructions

- Draw line of given length
- Use one end as center with appropriate radius to draw arc
- Use other end as center with same radius to draw intersecting arc
- Join ends to intersection point
- Measure sides and angles to verify regularity

What makes a triangle regular and how do we construct it?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Pair of compasses
- Protractor
- Pencil
- Plain paper

- Observation - Practical construction - Oral questions

4.0: Geometry

4.1: Geometrical Constructions - Constructing regular pentagons

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

- Recall that interior angle of regular pentagon is 108°
- Construct regular pentagon using ruler and protractor
- Show patience in multi-step constructions

- Draw line of given length
- Measure specified interior angle at one end
- Mark point along the line at given distance
- Repeat process at each new vertex
- Join last vertex to starting point to complete pentagon
- Verify all sides and angles are equal

Why is each interior angle of a regular pentagon 108°?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Protractor
- Pencil
- Calculator

- Observation - Practical construction - Written tests

4.0: Geometry

4.1: Geometrical Constructions - Constructing regular hexagons and circles

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

- Identify that interior angle of regular hexagon is 120°
- Construct regular hexagon and circles related to triangles
- Appreciate relationship between circles and polygons

- Construct regular hexagon using protractor
- Construct triangle and draw perpendicular bisectors
- Locate circumcenter and draw circumcircle
- Construct angle bisectors to find incenter and draw incircle
- Compare properties of different circles

How are circles related to regular polygons and triangles?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Protractor
- Pair of compasses
- Pencil

- Observation - Practical construction - Oral questions

4.0: Geometry

4.2: Coordinates and Graphs - Drawing labelled Cartesian plane

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

- Define Cartesian plane and identify its components
- Draw and label a Cartesian plane with axes and origin
- Show understanding of coordinate system

- Draw horizontal line and label as x-axis
- Draw vertical line crossing at center and label as y-axis
- Mark intersection point as origin
- Number axes with positive and negative values
- Place arrows at ends of axes
- Discuss purpose of arrows

Why do we need two axes to locate points on a plane?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Digital resources

- Observation - Oral questions - Written assignments

4.0: Geometry

4.2: Coordinates and Graphs - Drawing Cartesian plane with different scales
4.2: Coordinates and Graphs - Identifying points on Cartesian plane

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

- Explain the concept of scale in graphs
- Draw Cartesian plane with specified scales on both axes
- Demonstrate accuracy in scaling

- Draw Cartesian plane with various scales
- Practice with different unit representations
- Label axes correctly with chosen scale
- Discuss when to use different scales
- Compare graphs with different scales

How does scale affect the appearance of a graph?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Calculator
- Worksheet with points

- Observation - Practical tasks - Written tests

4.0: Geometry

4.2: Coordinates and Graphs - Plotting points on Cartesian plane

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

- Explain the process of plotting coordinates
- Plot given coordinates on Cartesian plane accurately
- Demonstrate accuracy in plotting

- Identify x-coordinate and locate on x-axis
- Check sign of y-coordinate
- Draw line upward for positive y, downward for negative y
- Locate y-coordinate on y-axis
- Mark point where lines meet
- Practice plotting points in all quadrants

How do we use coordinates to mark exact positions?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- List of coordinates

- Observation - Practical tasks - Peer assessment

4.0: Geometry

4.2: Coordinates and Graphs - Reading coordinates from graphs

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

- Identify coordinates of plotted points on graphs
- Read coordinates from all four quadrants correctly
- Show accuracy in coordinate reading

- Examine graph with plotted points
- Write down coordinates of labeled points
- Identify points on x-axis and y-axis
- Match given coordinates to labeled points on graph
- Practice with various coordinate positions

What special coordinates do points on the axes have?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper with plotted points
- Ruler
- Pencil
- Practice worksheets

- Observation - Written tests - Oral questions

4.0: Geometry

4.2: Coordinates and Graphs - Generating table of values from linear equations

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

- State the process of generating tables from equations
- Generate table of values from given linear equations
- Show systematic approach to problem-solving

- Choose suitable x values
- Draw table with selected x values
- Substitute each x value into equation to find y
- Complete table with corresponding y values
- Practice with equations in different forms

How do we find ordered pairs that satisfy a linear equation?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Calculator
- Pencil

- Observation - Written assignments - Problem-solving tasks

4.0: Geometry

4.2: Coordinates and Graphs - Completing tables for linear equations
4.2: Coordinates and Graphs - Determining appropriate scale for graphs

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

- Identify given values in equation tables
- Complete given tables using equations accurately
- Demonstrate algebraic skills in context

- Complete tables for equations in various forms
- Substitute given values to find missing values
- Generate complete tables for different equations
- Practice with whole numbers and fractions
- Verify completed tables

How do different forms of equations affect table generation?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Calculator
- Pencil
- Exercise book
- Practice worksheets
- Graph paper
- Ruler
- Data tables

- Observation - Written tests - Oral questions

4.0: Geometry

4.2: Coordinates and Graphs - Drawing line graphs from tables

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

- Recall steps for drawing line graphs
- Draw straight lines through plotted points using appropriate scale
- Show accuracy in graphing

- Generate table of values using given equation
- Choose suitable scale
- Plot coordinates on Cartesian plane
- Join plotted points using ruler
- Draw line graphs for various equations
- Verify line passes through all points

Why do linear equations produce straight line graphs?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Calculator

- Observation - Practical construction - Peer assessment

4.0: Geometry

4.2: Coordinates and Graphs - Drawing graphs for various linear equations

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

- Identify equations representing horizontal and vertical lines
- Draw graphs for equations in different forms
- Demonstrate graphing skills

- Draw graphs for equations in various forms
- Draw horizontal and vertical lines
- Compare slopes of different lines
- Identify parallel and perpendicular lines
- Practice graphing multiple equations

What do certain equations represent graphically?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Set of equations

- Observation - Written tests - Practical tasks

4.0: Geometry

4.2: Coordinates and Graphs - Introduction to simultaneous equations graphically
4.2: Coordinates and Graphs - Solving simultaneous linear equations graphically

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

- Define simultaneous equations
- Identify point of intersection of two lines as solution
- Show interest in graphical methods

- Solve simultaneous equations algebraically
- Draw graphs of both equations on same axes
- Identify where lines intersect
- Read coordinates of intersection point
- Compare graphical solution to algebraic solution

How can graphs help us solve two equations together?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Calculator
- Number cards
- Pencil

- Observation - Oral questions - Written assignments

4.0: Geometry

4.2: Coordinates and Graphs - Practice solving simultaneous equations with different forms

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

- Identify equations with decimal and fractional coefficients
- Solve various forms of simultaneous equations graphically
- Show proficiency in graphical methods

- Solve equations with integer coefficients
- Work with decimal coefficients
- Handle equations with fractions
- Practice with different forms
- Compare solutions for accuracy

How do decimal coefficients affect the graphing process?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Scientific calculator
- Pencil

- Observation - Written tests - Problem-solving tasks

4.0: Geometry

4.2: Coordinates and Graphs - Applying simultaneous equations to real-life problems

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

- State real-life situations involving simultaneous equations
- Formulate and solve simultaneous equations from word problems graphically
- Appreciate practical applications of mathematics

- Formulate equations from shopping scenarios
- Set up equations from pricing problems
- Solve using graphical method
- Interpret solutions in context
- Discuss other real-life applications

How do simultaneous equations help solve everyday problems?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Calculator
- Real-life problem cards

- Observation - Problem-solving - Oral questions