Algebra

Algebraic Expressions - Factorization of algebraic expressions
Algebraic Expressions - Factorization using the HCF

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

-Identify like terms in algebraic expressions
-Find the highest common factor of terms in expressions
-Show interest in learning algebraic expressions

-Discuss and identify like and unlike terms in expressions
-Find the highest common factor of terms in algebraic expressions
-Write algebraic expressions for real-life situations

How do we factorize algebraic expressions?

-KLB Grade 8 Mathematics pg. 56
-Algebra tiles
-Digital resources
-KLB Grade 8 Mathematics pg. 57

-Observation -Oral questions -Written assignments

Algebra

Algebraic Expressions - Addition and subtraction of algebraic fractions

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

-Add algebraic fractions
-Subtract algebraic fractions
-Show interest in working with algebraic fractions

-Discuss and use the correct methods to add algebraic fractions
-Find the LCM of denominators in algebraic fractions
-Practice addition and subtraction of algebraic fractions

How do we simplify algebraic expressions?

-KLB Grade 8 Mathematics pg. 58
-Algebra charts
-Digital resources

-Observation -Oral questions -Written assignments

Algebra

Algebraic Expressions - Simplification of algebraic fractions by factorization
Algebraic Expressions - Evaluating algebraic expressions

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

-Simplify algebraic fractions by factorization
-Use factorization to simplify complex fractions
-Appreciate the use of factorization in simplification

-Write numerator and denominator as products of factors
-Identify and cancel common factors
-Simplify algebraic fractions using factorization

How do we simplify algebraic fractions?

-KLB Grade 8 Mathematics pg. 59
-Algebra charts
-Digital resources
-KLB Grade 8 Mathematics pg. 60

-Observation -Oral questions -Written tests

Algebra

Algebraic Expressions - Applications of algebraic expressions

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

-Apply algebraic expressions in real-life situations
-Form expressions from word problems
-Value the importance of algebraic expressions

-Form algebraic expressions from real-life situations
-Evaluate expressions for given values
-Use IT to practice algebraic expressions

How do we apply algebraic expressions in real life?

-KLB Grade 8 Mathematics pg. 61
-Digital resources
-Internet access

-Observation -Oral questions -Written tests

Algebra

Linear Equations - Forming linear equations in two unknowns

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

-Form linear equations in two unknowns
-Translate word problems into equations
-Show interest in linear equations

-Role play activities such as shopping on two different items to form linear equations
-Represent price of items using letters
-Form equations from real-life situations

How do we solve linear equations in two unknowns?

-KLB Grade 8 Mathematics pg. 62
-Shop setup materials
-Digital resources

-Observation -Oral questions -Written assignments

Algebra

Linear Equations - Forming related linear equations
Linear Equations - Solving linear equations by substitution method

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

-Form related linear equations in two unknowns
-Create simultaneous equations from real-life situations
-Value the use of equations in problem-solving

-Set up a demonstration shop with two different improvised items
-Relate amounts spent to total amounts
-Form simultaneous equations from given scenarios

Where do we use linear equations in two unknowns in real life situations?

-KLB Grade 8 Mathematics pg. 64
-Shop setup materials
-Digital resources
-KLB Grade 8 Mathematics pg. 66
-Equation charts

-Observation -Oral questions -Written tests

Algebra

Linear Equations - More on substitution method

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

-Apply substitution method to various equations
-Solve complex simultaneous equations
-Appreciate the substitution method

-Solve different types of linear equations using substitution
-Apply substitution method to practical problems
-Compare solutions with other methods

How do we apply substitution method to different equations?

-KLB Grade 8 Mathematics pg. 67
-Equation charts
-Digital resources

-Observation -Oral questions -Written tests

Algebra

Linear Equations - Solving linear equations by elimination method
Linear Equations - More on elimination method

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

-Solve linear equations using elimination method
-Apply the method to solve simultaneous equations
-Show interest in using elimination method

-Multiply equations by suitable numbers to make coefficients equal
-Eliminate one unknown by addition or subtraction
-Practice solving equations using elimination method

How do we solve linear equations by elimination?

-KLB Grade 8 Mathematics pg. 68
-Equation charts
-Digital resources
-KLB Grade 8 Mathematics pg. 70

-Observation -Oral questions -Written assignments

Algebra

Linear Equations - Applying linear equations in real-life situations

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

-Apply linear equations to real-life situations
-Solve word problems using simultaneous equations
-Recognize use of linear equations in real life

-Practice forming and solving simultaneous equations from real-life cases
-Apply appropriate methods to solve problems
-Watch videos involving linear equations in real life

Where do we use linear equations in real life situations?

-KLB Grade 8 Mathematics pg. 70
-Internet access
-Digital resources

-Observation -Oral questions -Problem-solving tasks

Measurements

Circles - Working out the circumference of a circle
Circles - Working out the circumference of circles in real life

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

-Work out the circumference of a circle
-Apply the formula for circumference in calculations
-Show interest in learning about circles

-Wrap a paper strip around a cylinder and mark the start and end points
-Measure the distance between the marked points
-Calculate circumference using the formula C = πd
-Solve real-life problems involving circumference

How do we determine the circumference of a circle?

-KLB Grade 8 Mathematics pg. 71
-Circular objects
-Measuring tape or ruler
-KLB Grade 8 Mathematics pg. 73
-Digital resources

-Observation -Oral questions -Written assignments

Measurements

Circles - Working out the length of an arc

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

-Work out the length of an arc of a circle
-Apply the formula for arc length in calculations
-Show interest in arc lengths

-Draw a circle and cut it out
-Fold the cut-out into four equal parts
-Relate the arc length to the circumference
-Calculate arc length using the formula
-Use cut-outs to relate arc length to the circumference

How do we determine the length of an arc of a circle?

-KLB Grade 8 Mathematics pg. 73
-Paper
-Pair of compasses

-Observation -Oral questions -Written assignments

Measurements

Circles - Working out the length of an arc in real life
Circles - Calculating the perimeter of a sector

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

-Apply knowledge of arc length in real-life contexts
-Calculate arc lengths in various scenarios
-Appreciate the use of arcs in daily life

-Calculate arc lengths for different angles
-Solve real-life problems involving arc lengths
-Discuss practical applications of arc lengths

How do we use arcs in real life situations?

-KLB Grade 8 Mathematics pg. 74
-Circular objects
-Protractors
-KLB Grade 8 Mathematics pg. 75
-Paper
-Pair of compasses
-Scissors

-Observation -Oral questions -Written tests

Measurements

Area - Calculating the area of a circle

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

-Calculate the area of a circle
-Apply the formula for area of a circle
-Value the importance of circular areas

-Draw a circle on a graph paper
-Estimate its area by counting squares
-Calculate area using the formula A = πr²
-Compare the estimated and calculated areas

How do we use area in real life situations?

-KLB Grade 8 Mathematics pg. 77
-Graph paper
-Pair of compasses

-Observation -Oral questions -Written assignments

Measurements

Area - Working out the area of a circle in real life

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

-Apply knowledge of circular area in real-life contexts
-Calculate areas of circular objects
-Show interest in circular areas

-Discuss and work out areas of different circles
-Measure radius and calculate area
-Solve real-life problems involving circular area

How do we apply knowledge of circular area?

-KLB Grade 8 Mathematics pg. 79
-Circular objects
-Measuring tools

-Observation -Oral questions -Written tests

Measurements

Area - Working out the area of a sector
Area - Working out the area of a sector in real life

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

-Calculate the area of a sector of a circle
-Apply the formula for sector area
-Appreciate sectors in everyday objects

-Use cut-outs of sectors from locally available materials
-Express the angle of sector as a fraction of 360°
-Calculate sector area using the formula
-Relate the angle of the sector to the area of the circle

How do we calculate the area of a sector?

-KLB Grade 8 Mathematics pg. 80
-Paper
-Pair of compasses
-Protractors
-KLB Grade 8 Mathematics pg. 81
-Sector models

-Observation -Oral questions -Written assignments

Measurements

Area - Working out the surface area of cubes

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

-Work out the surface area of cubes
-Apply the formula for cube surface area
-Value the importance of surface area

-Use a model of a cube to identify faces
-Measure edges and calculate face areas
-Find the sum of areas of all faces
-Apply the formula for cube surface area

How do we calculate the surface area of a cube?

-KLB Grade 8 Mathematics pg. 82
-Cube models
-Measuring tools

-Observation -Oral questions -Written assignments

Measurements

Area - Working out the surface area of cuboids
Area - Working out the surface area of cylinders

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

-Work out the surface area of cuboids
-Apply the formula for cuboid surface area
-Show interest in cuboid measurements

-Use a model of a cuboid to identify faces
-Identify pairs of faces with equal dimensions
-Calculate area of each pair of faces
-Apply the formula for cuboid surface area

How do we calculate the surface area of a cuboid?

-KLB Grade 8 Mathematics pg. 84
-Cuboid models
-Measuring tools
-KLB Grade 8 Mathematics pg. 86
-Cylindrical objects
-Paper
-Scissors

-Observation -Oral questions -Written assignments

Measurements

Area - Working out the surface area of triangular prisms

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

-Determine the surface area of triangular prisms
-Apply the formula for triangular prism surface area
-Show interest in prism measurements

-Use a model of triangular prism to identify faces
-Calculate areas of triangular faces and rectangular faces
-Find the sum of all face areas
-Apply the formula for triangular prism surface area

How do we calculate the surface area of a triangular prism?

-KLB Grade 8 Mathematics pg. 87
-Triangular prism models
-Measuring tools

-Observation -Oral questions -Written assignments

Measurements

Area - Working out the area of irregular shapes
Money - Identifying interest and principal

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

-Work out the area of irregular shapes using square grids
-Estimate areas by counting grid squares
-Value the importance of area estimation

-Trace irregular shaped objects on square grids
-Count complete and partial squares
-Estimate areas by adding complete squares and half of partial squares
-Compare estimated areas with regular shapes

How do we determine the area of irregular shapes?

-KLB Grade 8 Mathematics pg. 88
-Square grid paper
-Irregular objects
-Tracing paper
-KLB Grade 8 Mathematics pg. 89
-Financial brochures
-Digital resources

-Observation -Oral questions -Written tests

Measurements

Money - Calculating simple interest

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

-Calculate simple interest in real-life situations
-Apply the formula for simple interest
-Value the importance of interest calculations

-Identify principal, rate, and time in scenarios
-Apply the formula I = PRT/100
-Solve problems involving simple interest
-Discuss terms of interest on deposits

What is interest in money?

-KLB Grade 8 Mathematics pg. 91
-Calculator
-Digital resources

-Observation -Oral questions -Written tests

Measurements

Money - More on simple interest
Money - Calculating compound interest for one year

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

-Solve complex problems involving simple interest
-Find unknown values in interest calculations
-Show interest in financial calculations

-Calculate unknown principal, rate, or time given other values
-Apply simple interest formula in reverse
-Solve real-life problems involving simple interest

How do we calculate simple interest for different time periods?

-KLB Grade 8 Mathematics pg. 92
-Calculator
-Digital resources
-KLB Grade 8 Mathematics pg. 93

-Observation -Oral questions -Written assignments

Measurements

Money - Calculating compound interest for two years

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

-Calculate compound interest for two years
-Apply step-by-step calculation method
-Show interest in long-term investments

-Calculate interest for the first year and new principal
-Calculate interest for the second year
-Find the total compound interest
-Discuss the growth of investments

How do we pay for goods on hire purchase?

-KLB Grade 8 Mathematics pg. 94
-Calculator
-Digital resources

-Observation -Oral questions -Written assignments

Measurements

Money - Calculating compound interest for three years

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

-Calculate compound interest for three years
-Apply step-by-step calculation method
-Value long-term financial planning

-Calculate interest year by year
-Find total compound interest over three years
-Compare with simple interest
-Discuss the advantages of compound interest

How does compound interest grow over time?

-KLB Grade 8 Mathematics pg. 95
-Calculator
-Digital resources

-Observation -Oral questions -Written tests

Measurements

Money - Working out appreciation
Money - Working out depreciation

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

-Work out appreciation of value
-Apply appreciation calculations to assets
-Show interest in value appreciation

-Research meaning of appreciation
-List items that appreciate in value
-Calculate value after appreciation
-Discuss items worth investing in

How do we calculate appreciation of value?

-KLB Grade 8 Mathematics pg. 96
-Calculator
-Digital resources
-KLB Grade 8 Mathematics pg. 97

-Observation -Oral questions -Written assignments

Measurements

Money - Working out hire purchase

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

-Work out hire purchase costs
-Compare cash price and hire purchase price
-Make informed financial decisions

-Visit shops with hire purchase options or use digital resources
-Gather information on deposit, cash price, and installments
-Calculate total hire purchase cost
-Compare with cash price and determine the extra cost

How do we pay for goods on hire purchase?

-KLB Grade 8 Mathematics pg. 98
-Calculator
-Brochures from shops
-Digital resources

-Observation -Oral questions -Written assignments

Geometry

Geometrical Constructions - Construction of parallel lines
Geometrical Constructions - Construction of parallel lines using a set square

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

-Construct parallel lines using a pair of compasses
-Apply parallel line construction in real-life situations
-Show interest in constructing parallel lines

-Draw line AB and point C above the line
-With C as center and radius length AB, draw an arc above line AB
-With B as center and radius length AC, draw an arc to cut the first arc at D
-Join C to D to form a line parallel to AB

How do we construct polygons?

-KLB Grade 8 Mathematics pg. 100
-Pair of compasses
-Ruler
-Drawing paper
-KLB Grade 8 Mathematics pg. 103
-Set square

-Observation -Oral questions -Written assignments

Geometry

Geometrical Constructions - Construction of perpendicular lines from a point

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

-Construct perpendicular lines from a point to a given line
-Apply perpendicular construction in solving problems
-Show interest in perpendicular lines

-Draw line AB and point M
-With M as center and suitable radius, construct two arcs to cut AB at C and D
-Using C and D as centers and suitable radius, construct two arcs on the opposite side to intersect at E
-Join M to E through point F on the line

How do we construct perpendicular lines?

-KLB Grade 8 Mathematics pg. 104
-Pair of compasses
-Ruler
-Drawing paper

-Observation -Oral questions -Written assignments

Geometry

Geometrical Constructions - Construction of perpendicular lines through a point
Geometrical Constructions - Dividing a line proportionally

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

-Construct perpendicular lines through a point on a given line
-Apply perpendicular construction in solving problems
-Value the use of perpendicular lines

-Draw line EF and point G on the line
-Using G as center and suitable radius, draw two arcs to cut EF at A and B
-With A and B as centers and using the same radius, construct two pairs of intersecting arcs on either side of EF
-Join C to D to form a perpendicular line through G

What is the relationship between perpendicular lines?

-KLB Grade 8 Mathematics pg. 105
-Pair of compasses
-Ruler
-Drawing paper
-KLB Grade 8 Mathematics pg. 106
-Set square

-Observation -Oral questions -Written tests

Geometry

Geometrical Constructions - Identifying angle properties of polygons

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

-Identify angle properties of polygons
-Calculate interior and exterior angles
-Show interest in polygon properties

-Discuss the relationship between the sum of interior angles and number of sides
-Fill in a table showing the sum of interior angles for different polygons
-Relate the number of right angles to the number of sides
-Calculate individual angles in regular polygons

What are the properties of different polygons?

-KLB Grade 8 Mathematics pg. 108
-Polygon models
-Protractor
-Calculator

-Observation -Oral questions -Written tests

Geometry

Geometrical Constructions - Construction of a regular triangle
Geometrical Constructions - Construction of a regular quadrilateral

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

-Construct a regular triangle
-Apply triangle construction in real-life situations
-Value the use of regular triangles

-Construct line PQ of required length
-Using P and Q as centers and radius equal to side length, construct two arcs intersecting at R
-Join P to R and Q to R
-Measure the angles to confirm they are all 60°

How do we construct regular polygons?

-KLB Grade 8 Mathematics pg. 112
-Pair of compasses
-Ruler
-Protractor
-KLB Grade 8 Mathematics pg. 113
-Set square

-Observation -Oral questions -Written assignments

Geometry

Geometrical Constructions - Construction of a regular pentagon

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

-Calculate interior angles of a regular pentagon
-Construct a regular pentagon
-Value the use of regular pentagons

-Find the size of each interior angle of the pentagon (108°)
-Draw line AB of required length
-Using B as center and radius equal to side length, locate C such that angle ABC is 108°
-Continue the process to locate D and E
-Join A to E to complete the pentagon

How are interior angles related to the number of sides?

-KLB Grade 8 Mathematics pg. 114
-Pair of compasses
-Ruler
-Protractor

-Observation -Oral questions -Written assignments

Geometry

Geometrical Constructions - Construction of a regular hexagon

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

-Calculate interior angles of a regular hexagon
-Construct a regular hexagon
-Show interest in regular hexagons

-Find the size of each interior angle of the hexagon (120°)
-Draw line PQ of required length
-At Q, draw the interior angle PQR with QR equal to side length
-Continue the process to locate S, T, and U
-Join U to P to complete the hexagon

What are the properties of a regular hexagon?

-KLB Grade 8 Mathematics pg. 115
-Pair of compasses
-Ruler
-Protractor

-Observation -Oral questions -Written tests

Geometry

Geometrical Constructions - Construction of irregular polygons
Geometrical Constructions - Construction of circles passing through vertices

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

-Construct irregular polygons
-Apply irregular polygon construction in real-life situations
-Value the use of irregular polygons

-Given the measurements of sides and angles, draw the first side
-Use measurements to construct each subsequent side and angle
-Complete the polygon by joining the last vertex to the first
-Verify measurements of all sides and angles

How do we construct irregular polygons?

-KLB Grade 8 Mathematics pg. 117
-Pair of compasses
-Ruler
-Protractor
-KLB Grade 8 Mathematics pg. 123

-Observation -Oral questions -Written assignments

Geometry

Coordinates and Graphs - Drawing and labeling a Cartesian plane

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

-Draw a labelled Cartesian plane
-Identify different parts of the Cartesian plane
-Show interest in Cartesian planes

-Draw a horizontal x-axis and vertical y-axis
-Mark the origin where the axes intersect
-Use a scale to mark positive and negative values on both axes
-Label the axes and quadrants

How do we plot coordinates on a Cartesian plane?

-KLB Grade 8 Mathematics pg. 128
-Graph paper
-Ruler
-Digital resources

-Observation -Oral questions -Written assignments

Geometry

Coordinates and Graphs - Identifying points on the Cartesian plane
Coordinates and Graphs - Plotting points on the Cartesian plane

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

-Identify points on the Cartesian plane
-Read coordinates of points
-Value the Cartesian coordinate system

-Study points plotted on the Cartesian plane
-Identify the ordered pairs (x,y) for each point
-Discuss how to read coordinates of points in different quadrants
-Write coordinates of given points

What do coordinates tell us about a point's location?

-KLB Grade 8 Mathematics pg. 129
-Graph paper
-Cartesian plane charts
-KLB Grade 8 Mathematics pg. 130
-Ruler
-Digital resources

-Observation -Oral questions -Written tests

Geometry

Coordinates and Graphs - Generating table of values for linear equations

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

-Generate table of values for a linear equation
-Substitute values in equations
-Value the relationship between variables

-Given linear equations, select appropriate x-values
-Substitute each x-value into the equation to find corresponding y-value
-Record the ordered pairs in a table
-Verify that the pairs satisfy the original equation

Where do we use linear graphs in real life?

-KLB Grade 8 Mathematics pg. 131
-Exercise books
-Calculator
-Digital resources

-Observation -Oral questions -Written tests

Geometry

Coordinates and Graphs - Determining appropriate scale
Coordinates and Graphs - Drawing linear graphs (I)

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

-Determine an appropriate scale for a linear equation
-Convert actual values to scale values
-Show interest in scale selection

-Analyze the range of x and y values in the table
-Choose a scale that allows all points to fit on the graph paper
-Convert actual values to appropriate scale values
-Discuss the importance of suitable scales

How do we choose an appropriate scale?

-KLB Grade 8 Mathematics pg. 133
-Graph paper
-Calculator
-Digital resources
-KLB Grade 8 Mathematics pg. 135
-Ruler
-Pencil

-Observation -Oral questions -Written assignments

Geometry

Coordinates and Graphs - Drawing linear graphs (II)

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

-Draw linear graphs for different equations
-Identify key features of linear graphs
-Show interest in graphical representations

-Generate tables of values for different linear equations
-Plot the points on a Cartesian plane
-Draw the lines representing the equations
-Discuss the gradient and y-intercept of each line

How does changing the equation affect the graph?

-KLB Grade 8 Mathematics pg. 136
-Graph paper
-Ruler
-Digital resources

-Observation -Oral questions -Written assignments

Geometry

Coordinates and Graphs - Solving simultaneous equations graphically (I)
Coordinates and Graphs - Solving simultaneous equations graphically (II)

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

-Solve simultaneous equations graphically
-Identify the point of intersection
-Value graphical solutions

-Generate tables of values for two linear equations
-Plot both equations on the same Cartesian plane
-Identify the point of intersection
-Verify that the coordinates satisfy both equations

How can we solve equations using graphs?

-KLB Grade 8 Mathematics pg. 137
-Graph paper
-Ruler
-Digital resources
-KLB Grade 8 Mathematics pg. 138
-Calculator

-Observation -Oral questions -Written tests

Geometry

Coordinates and Graphs - Applying simultaneous equations in real life (I)

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

-Apply simultaneous equations in real-life problems
-Form equations from word problems
-Value real-life applications

-Translate word problems into linear equations
-Generate tables of values for the equations
-Draw the graphs and find the point of intersection
-Interpret the solution in the context of the problem

Where do we use simultaneous equations in real life?

-KLB Grade 8 Mathematics pg. 140
-Graph paper
-Calculator
-Digital resources

-Observation -Oral questions -Written tests

Geometry

Coordinates and Graphs - Applying simultaneous equations in real life (II)

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

-Solve complex real-life problems using graphs
-Interpret solutions in context
-Show interest in practical applications

-Analyze complex word problems involving costs, quantities, etc.
-Form appropriate simultaneous equations
-Solve graphically and interpret the solution
-Discuss the practical implications of the solution

How can graphs help us make decisions?

-KLB Grade 8 Mathematics pg. 141
-Graph paper
-Calculator
-Digital resources

-Observation -Oral questions -Written assignments

Geometry
Data Handling and Probability

Coordinates and Graphs - Solving practical problems using graphs
Data Presentation and Interpretation - Drawing bar graphs

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

-Solve practical problems using graphs
-Make decisions based on graphical solutions
-Appreciate graphical problem-solving

-Study practical problems from different contexts
-Model the problems using simultaneous equations
-Solve graphically and analyze the solutions
-Compare graphical solutions with algebraic methods

Why are graphs useful in problem-solving?

-KLB Grade 8 Mathematics pg. 142
-Graph paper
-Calculator
-Digital resources
-KLB Grade 8 Mathematics pg. 178
-Ruler
-Colored pencils

-Observation -Oral questions -Written tests

Data Handling and Probability

Data Presentation and Interpretation - Interpreting bar graphs

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

-Interpret bar graphs of data from real-life situations
-Extract information from bar graphs
-Value the importance of data interpretation

-Study bar graphs representing various data sets
-Identify highest and lowest values
-Calculate differences between values
-Answer questions based on information in the graphs

How do we interpret information from bar graphs?

-KLB Grade 8 Mathematics pg. 180
-Bar graph charts
-Digital resources

-Observation -Oral questions -Written tests

Data Handling and Probability

Data Presentation and Interpretation - Drawing line graphs
Data Presentation and Interpretation - Interpreting line graphs

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

-Draw line graphs of given data from real-life situations
-Apply appropriate scales in line graphs
-Show interest in line graph representation

-Collect data on temperature at different times of day
-Record data in a table
-Choose a suitable scale for axes
-Plot points accurately
-Join points with straight lines to create a line graph

How do we represent continuous data?

-KLB Grade 8 Mathematics pg. 183
-Graph paper
-Ruler
-Colored pencils
-KLB Grade 8 Mathematics pg. 185
-Line graph charts
-Digital resources

-Observation -Oral questions -Written assignments

Data Handling and Probability

Data Presentation and Interpretation - Identifying the mode

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

-Identify the mode of a set of discrete data
-Apply mode in analyzing data sets
-Show interest in measures of central tendency

-Study data sets of shoe sizes, test scores, etc.
-Identify the numbers in the list without repetition
-Count frequency of each value
-Identify the value with highest frequency (mode)

What is the mode and how is it useful?

-KLB Grade 8 Mathematics pg. 187
-Data sets
-Calculator
-Digital resources

-Observation -Oral questions -Written assignments

Data Handling and Probability

Data Presentation and Interpretation - Mode of grouped data
Data Presentation and Interpretation - Calculating the mean

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

-Find the mode of grouped data
-Create frequency tables
-Value the mode as a measure of central tendency

-Organize data sets into frequency tables
-Count occurrences of each value
-Identify the value with highest frequency
-Discuss the significance of mode in data analysis

Why is the mode important in data analysis?

-KLB Grade 8 Mathematics pg. 190
-Data sets
-Calculator
-Digital resources
-KLB Grade 8 Mathematics pg. 192

-Observation -Oral questions -Written tests

Data Handling and Probability

Data Presentation and Interpretation - Mean of grouped data

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

-Calculate the mean of grouped data
-Apply frequency tables in mean calculation
-Value the mean as a measure of central tendency

-Create frequency tables for data sets
-Multiply each value by its frequency
-Find the sum of products
-Divide by the total frequency (number of items)

How do we calculate the mean of large data sets?

-KLB Grade 8 Mathematics pg. 193
-Data sets
-Calculator
-Digital resources

-Observation -Oral questions -Written tests

Data Handling and Probability

Data Presentation and Interpretation - Determining the median
Data Presentation and Interpretation - Applications of measures of central tendency

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

-Determine the median of a set of discrete data
-Apply median in analyzing data sets
-Show interest in measures of central tendency

-Study data sets of ages, scores, etc.
-Arrange data in ascending order
-Identify the middle value for odd number of items
-Calculate average of two middle values for even number of items

What is the median and when is it useful?

-KLB Grade 8 Mathematics pg. 195
-Data sets
-Calculator
-Digital resources
-KLB Grade 8 Mathematics pg. 196
-Real-life data sets

-Observation -Oral questions -Written assignments

Data Handling and Probability

Probability - Identifying events involving chance

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

-Identify events involving chance in real-life situations
-Classify events based on likelihood
-Show interest in probability concepts

-Classify events as likely, unlikely, must happen, or cannot happen
-Discuss examples from daily life
-Compare classifications with other groups
-Recognize events that involve chance

When do we consider chances that an event is likely to happen?

-KLB Grade 8 Mathematics pg. 197
-Event cards
-Digital resources

-Observation -Oral questions -Written assignments

Data Handling and Probability

Probability - Performing chance experiments

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

-Perform chance experiments in different situations
-Record outcomes of chance experiments
-Value experimental approaches to probability

-Flip coins and record heads or tails outcomes
-Toss dice and record number outcomes
-Discuss possible outcomes of each experiment
-Conduct multiple trials and record results

What factors affect probability outcomes?

-KLB Grade 8 Mathematics pg. 198
-Coins
-Dice
-Spinner wheels

-Observation -Oral questions -Written tests

Data Handling and Probability

Probability - Writing experimental probability outcomes
Probability - Expressing probability outcomes in fractions

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

-Write the experimental probability outcomes
-Record frequency of different outcomes
-Show interest in experimental probability

-Toss a fair dice multiple times
-Record the outcomes in a frequency table
-Calculate relative frequency of each outcome
-Compare experimental results with theoretical expectations

Why is probability important in real life situations?

-KLB Grade 8 Mathematics pg. 199
-Dice
-Cards
-Tally charts
-KLB Grade 8 Mathematics pg. 200
-Coins
-Recording sheets

-Observation -Oral questions -Written assignments

Data Handling and Probability

Probability - Expressing probability in decimals

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

-Express probability outcomes in decimals
-Convert between fractions and decimals in probability
-Show interest in decimal representation

-Conduct experiments with cards, spinners, etc.
-Express probability outcomes as fractions
-Convert fractions to decimals
-Compare decimal representations of different events

What does a decimal probability value tell us?

-KLB Grade 8 Mathematics pg. 202
-Cards
-Spinner wheels
-Calculator

-Observation -Oral questions -Written assignments

Data Handling and Probability

Probability - Expressing probability in percentages
Probability - Applications in real life

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

-Express probability outcomes in percentages
-Convert between fractions, decimals, and percentages
-Value percentage representation of probability

-Conduct probability experiments
-Calculate probability as fractions
-Convert fractions to percentages
-Interpret percentage probability in real-life contexts

How do percentages help us understand probability?

-KLB Grade 8 Mathematics pg. 203
-Cards
-Dice
-Calculator
-KLB Grade 8 Mathematics pg. 204
-Real-life scenarios
-Digital resources

-Observation -Oral questions -Written tests

Data Handling and Probability

Probability - Applications in real life

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