Geometry

Geometrical Constructions
Construction of parallel lines using a set square and a rule

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

Define the term

In groups or in pairs, learners are guided to define the term

What is the meaning of parallel?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 100-102
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Learner's Book Grade 8 pg. 102-104

Oral questions Oral Report Observation Written exercise

Geometry

Perpendicular lines' Construction of a perpendicular line from a point to a given line
Construction of a perpendicular line through a point on a given line

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

Draw line AB and point M as shown on page 105
With M as the center and a suitable radius, construct two arcs to cut AB at C and D.
Construction of a perpendicular line from a point to a given line.
Have fun and enjoy constructing a perpendicular line from a point to a given line.

In groups or in pairs, learners are guided to Draw line AB and point M as shown on page 105, with M as the center and a suitable radius, construct two arcs to cut AB at C and D.
In groups or in pairs, learners are guided to construction of a perpendicular line from a point to a given line.

How do you construct a perpendicular line from a point to a given line?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 105-106
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Learner's Book Grade 8 pg. 106-107

Oral questions Oral Report Observation Written exercise

Geometry

Dividing a line proportionally in different situations

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

Draw line AB and AC of convenient length as shown on page 107
Divide a line proportionally in different situations.
Enjoy using a pair of compass.

In groups or in pairs, learners are guided to draw line AB and AC of convenient length as shown on page 107
In groups or in pairs, learners are guided to divide a line proportionally in different situations.

How do you divide a line proportionally in different situations?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 107-109
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Oral questions Oral Report Observation Written exercise

Geometry

Identifying angle properties of polygons in different situations
Construction of a regular polygon up to a hexagon in different situations

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

Identify angle properties of polygons in different situations
Discuss how to relate the sum of interior angles of a polygon to the number of sides.
Fill in the table on page 109 for regular polygons.
Appreciate properties of polygons in different situations.

In groups or in pairs, learners are guided to identify angle properties of polygons in different situations
In groups or in pairs, learners are guided to discuss how to relate the sum of interior angles of a polygon to the number of sides.
In groups or in pairs, learners are guided to fill in the table on page 109 for regular polygons.

How do you identify angle properties of polygon?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 109-112
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Learner's Book Grade 8 pg. 112

Oral questions Oral Report Observation Written exercise

Geometry

Regular quadrilateral
Regular pentagon

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

Draw line AB = 6 cm
On the same side of AB, construct two perpendicular lines at A and E
Using A as centre and radius 6 cm, mark point D on the perpendicular.
Enjoy constructing regular quadrilateral.

In groups or in pairs, learners are guided to draw line AB = 6 cm on the same side of AB, construct two perpendicular lines at A and E
In groups or in pairs, learners are guided to using A as centre and radius 6 cm, mark point D on the perpendicular.

How do you construct regular quadrilateral?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 113
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Oral questions Oral Report Observation Written exercise

Geometry

Regular hexagon
Construction of irregular polygons up to a hexagon in different situations

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

Explain the meaning of hexagon.
Draw a hexagon.
Find the size of each of the interior angles of the hexagon.
Enjoy constructing a regular hexagon in different situation.

In groups or in pairs, learners are guided to explain the meaning of hexagon.
In groups or in pairs, learners are guided to draw a hexagon.
In groups or in pairs, learners are guided to find the size of each of the interior angles of the hexagon.

How do you construct a regular hexagon?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 113-117
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Learner's Book Grade 8 pg. 117

Oral questions Oral Report Observation Written exercise

Geometry

Quadrilateral

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

Construct line PQ = 5 cm
Measure and draw angles 110 and 55 at P and Q respectively.
Construct an irregular quadrilateral.
Have fun and enjoy constructing irregular quadrilateral.

In groups or in pairs, learners are guided to construct line PQ = 5 cm
In groups or in pairs, learners are guided to measure and draw angles 110 and 55 at P and Q respectively.
In groups or in pairs, learners are guided to construct an irregular quadrilateral.

How do you construct an irregular quadrilateral?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 118
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Oral questions Oral Report Observation Written exercise

Geometry

Trapezium
Rhombus

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

Define the term trapezium.
Draw an irregular trapezium.
Construct an irregular trapezium.
Enjoy constructing an irregular trapezium.

In groups or in pairs, learners are guided to define the term trapezium.
In groups or in pairs, learners are guided to draw an irregular trapezium.
In groups or in pairs, learners are guided to construct an irregular trapezium.

How do construct an irregular trapezium?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 118-119
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Learner's Book Grade 8 pg. 119-120

Oral questions Oral Report Observation Written exercise

Geometry

Irregular pentagon
Construction of circles passing through the vertices of a triangle in different situations.

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

Draw line EF = 4 cm
Construct an irregular pentagon.
Enjoy constructing an irregular pentagon.

In groups or in pairs, learners are guided to draw line EF = 4 cm
In groups or in pairs, learners are guided to construct an irregular pentagon.

How do you construct an irregular pentagon?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 120-122
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Learner's Book Grade 8 pg. 122-124

Oral questions Oral Report Observation Written exercise

Geometry

Construction of circles touching the sides of a triangle in different situations

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

Draw a triangle.
Construct the angle bisectors of angle PQR and angle QPR to meet at M
Construct circles touching the sides of a triangle.
Enjoy constructing circles touching the sides of a triangle.

In groups or in pairs, learners are guided to draw a triangle.
In groups or in pairs, learners are guided to construct the angle bisectors of angle PQR and angle QPR to meet at M
In groups or in pairs, learners are guided to construct circles touching the sides of a triangle.

How do you construct circles touching the sides of a triangle?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 125-127
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Oral questions Oral Report Observation Written exercise

Geometry

Coordinates and Graphs; Drawing and Labelling a Cartesian plane
Identifying Points on the Cartesian Plane in Different Situations

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

On a grid draw a horizontal line.
Draw a vertical intersecting the horizontal line at point O.
Appreciate the uses of graphs.

In groups or in pairs, learners are guided to on a grid draw a horizontal line.
In groups or in pairs, learners are guided to draw a vertical intersecting the horizontal line at point O.

What is a grid?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 128
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Learner's Book Grade 8 pg. 129-131

Oral questions Oral Report Observation Written exercise

Geometry

Plotting Points on the Cartesian Plane in Different Situations
Generating Table of Values for Linear Equation in Different Situations.

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

Draw the graph in learner's book 8 page 131
Draw a Cartesian plane
Plot points on the Cartesian plane in different situations.
Enjoy plotting points on the Cartesian Plane in Different Situations.

In groups or in pairs, learners are guided to draw the graph in learner's book 8 page 131
In groups or in pairs, learners are guided to draw a Cartesian plane.
In groups or in pairs, learners are guided to plot points on the Cartesian plane in different situations.

How do you plot Points on the Cartesian Plane in Different Situations?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 131-132
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Learner's Book Grade 8 pg. 133-134

Oral questions Oral Report Observation Written exercise

Geometry

Determining an Appropriate Scale for a Linear Equation on Cartesian Plane in Different Situations
Drawing a Linear Graph from Table of Values on Cartesian Plane in different Situations

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

Use a suitable scale for a given point, find the corresponding values representing the given values.
Determining an appropriate scale for a linear equation on cartesian plane.
Appreciate the importance of using suitable scale.

In groups or in pairs, learners are guided to use a suitable scale for a given point, find the corresponding values representing the given values.
In groups or in pairs, learners are guided to determining an appropriate scale for a linear equation on cartesian plane.

How do you determine an appropriate scale for a linear equation on cartesian plane?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 134-136
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Learner's Book Grade 8 pg. 136-138

Oral questions Oral Report Observation Written exercise

Geometry

Solving Simultaneous Linear Equation Graphically in Different Situations

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

Use three values of x to make tables of values of x and y for the two linear equations.
Draw linear graphs for the two equations in the same Cartesian plane.
Solving simultaneous linear equation graphically.
Enjoy solving simultaneous linear equation graphical.

In groups or in pairs, learners are guided to use three values of x to make tables of values of x and y for the two linear equations.
In groups or in pairs, learners are guided to draw linear graphs for the two equations in the same Cartesian plane.
In groups or in pairs, learners are guided to Solving simultaneous linear equation graphically.

How do you solve simultaneous linear equation graphical?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 138-139
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Oral questions Oral Report Observation Written exercise

Geometry

Scale Drawing; Representing lengths to a given scale in different situations
Converting actual length to scale length in real life situations

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

Measure the length of sides of objects such as a pen, a pencil, a rubber, an exercise book, a desk and a table.
Record their measurement in a table as shown on page 143
Appreciate different types of lengths.

In groups, learners are guided to measure the length of sides of objects such as a pen, a pencil, a rubber, an exercise book, a desk and a table.
In groups, learners are guided to record their measurement in a table as shown on page 143

What is the length of your desk?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 143-144
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Learner's Book Grade 8 pg. 145-146

Oral questions Oral Report Observation Written exercise

Geometry

Converting scale length to actual length in real life situations
Interpreting linear scales in statements form in different situations

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

Draw a rectangular plot of scale drawing 9 cm and 4 cm.
Convert scale length to actual length.
Enjoy converting scale length to actual length in real life situations.

In groups, learners are guided to draw a rectangular plot of scale drawing 9 cm and 4 cm.
In groups, learners are guided to fill in the table in learner's book 8 page 147
In groups, learners are guided to convert scale length to actual length.

How do you convert scale length to actual length?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 146-147
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Learner's Book Grade 8 pg. 148-149

Oral questions Oral Report Observation Written exercise

Geometry

Writing Linear scale in Statement form in different situations

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

Explain the meaning of linear scale in statement form.
Write linear scale in Statement form in different situations.
Enjoy writing linear scale in Statement form in different situation.

In groups, learners are guided to explain the meaning of linear scale in statement form.
In groups, learners are guided to write linear scale in Statement form in different situations.

How do you write linear scale in Statement form?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 149-151
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Oral questions Oral Report Observation Written exercise

Geometry

Interpreting linear scales in ratio form in different situations
Writing linear scales in ratio form in different situations.

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

Draw the table in learner's book 8 page 151
Interpret linear scales in ratio form.
Enjoy interpreting linear scales in ratio form.

In groups, learners are guided to draw the table in learner's book 8 page 151
In groups, learners are guided to interpret linear scales in ratio form.

How do you interpret linear scales in ratio form?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 151-152
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Learner's Book Grade 8 pg. 152-153

Oral questions Oral Report Observation Written exercise

Geometry

Converting linear scale from statement form to ratio form in different situations
Converting linear scale from ratio from to statement form in different situations

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

Consider the scale 1 cm represents 4m and convert 4 m to centimetres.
Convert linear scale from statement form to ratio form.
Enjoy converting linear scale from statement form to ratio form in different situations.

In groups or in pairs, learners are guided to consider the scale 1 cm represents 4m and convert 4 m to centimetres.
In groups, learners are guided to express the scale in ratio form.
In groups, learners are guided to convert linear scale from statement form to ratio form.

How do you convert linear scale from statement form to ratio form?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 153-154
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Learner's Book Grade 8 pg. 154-155

Oral questions Oral Report Observation Written exercise

Geometry

Making scale drawing in different situations
Digital time

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

Making scale drawing in different situations.
Recognize the use of scale drawing in maps.
Applying scale drawing in real life situations.

In groups, learners are guided to making scale drawing in different situations.
In groups, learners are guided to recognize the use of scale drawing in maps.

How do you use scale drawing in real life situations?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 155-157
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Learner's Book Grade 8 pg. 157

Oral questions Oral Report Observation Written exercise

Common solids

Identification of common solids from the environment

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

Collect solids of different shapes from your environment.
Group them according to their shapes.
Appreciate different types of solids of different shapes.

In groups, learners are guided to collect solids of different shapes from your environment.
In groups, learners are guided to group them according to their shapes
In groups, learners are guided to identify each case count the number of faces, edges and vertices a solid has.

What is a solid? Which are the common solids found in your environment?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 158-159
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Oral questions Oral Report Observation Written exercise

Common solids

Nets of Common Solids in Different Situations
Draw a rectangular based pyramid

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

Use a box with an open top, cut the box along the edges AG, BF, CE and DH
Sketch the shape of the spread faces of the box
Appreciate different faces of a box.

In groups, learners are guided to use a box with an open top, cut the box along the edges AG, BF, CE and DH
In groups, learners are guided to spread out the faces of the box
In groups, learners are guided to sketch the shape of the spread faces of the box.

How many faces does square box have?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 159-160
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Learner's Book Grade 8 pg. 160-165

Oral questions Oral Report Observation Written exercise

Common solids

Working out Surface Area of Solids from nets of solids in different situations

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

Draw a net of the cuboid.
Calculate the area of each face.
Appreciate a cuboid

In groups, learners are guided to draw a net of the cuboid.
In groups, learners are guided to calculate the area of each face.
In groups, learners are guided to find the sum of the areas of the faces

How do you work out the area of a cuboid?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 166
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Learner's Book Grade 8 pg. 166-171

Oral questions Oral Report Observation Written exercise

Common solids

Determining the Distance between two points on the surface of a solid in different situations

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

Draw accurately a net of the prism showing the path of the string.
Determine the total length of the strength.
Appreciate determining the distance two points on the surface of a solid in different situations.

In groups, learners are guided to draw accurately a net of the prism showing the path of the string.
On the net, learners to show the path of the string and find the lengths of DM, MB, and BE
In groups, learners are guided to determine the total length of the strength.

How can you determine the distance between two points on the surface of a solid?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 171-174
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Oral questions Oral Report Observation Written exercise

Common solids

Making models of Hollow and compact solids

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

On a manilla paper, draw the net accurately.
Fold the net along the dotted lines.
Hold the edges using a cello tale.
Have fun and enjoy making models.

On a manilla paper, learners to draw the net accurately in learner's book 8 page 175
In groups, learners are guided to fold the net along the dotted lines and hold the edges using a cello tale.

How do you make a skeleton model of a cube of side 8.5cm?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 175
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Learner's Book Grade 8 pg. 176

Oral questions Oral Report Observation Written exercise

Common solids

Making models of Hollow and compact solids
Digital time

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

Use wires or straws to make a skeleton model of a cuboid.
Measure its length and width.
Have fun and enjoy modelling.

In groups, learners are guided to use wires or straws to make a skeleton model of a cuboid.
In groups, learners are guided to measure its length and width.
In groups, learners are guided to use a tray of matchbox and mud prepared from clay soil or plasticine, make a model of a compact solid in the shape of a cuboid.

How do you make a skeleton model of a pyramid on a square base of side 4.5cm and slant height 6 cm?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 177
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Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Data presentation and Interpretation
Interpreting bar graphs of data from real life situations.

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

Explain the meaning of bar graph.
Fill in the table in learner's book 8
Have a desire to learn more about data handling and probability.

In groups, learners are guided to explain the meaning of bar graph.
In groups, learners are guided to fill in the table in learner's book 8.
In groups, learners are guided to choose a suitable scale and represent the data on a bar graph.

What is a bar graph?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 178-180
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Learner's Book Grade 8 pg. 180-184

Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Drawing line graphs of given data from real life situations.

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

Draw the table that shows temperature recorded at different times of the day in learner's book 8
Represent the information on a line graph.
Enjoy drawing line graphs of given data from life situations.

In groups, learners are guided to draw the table that shows temperature recorded at different times of the day in learner's book 8
In groups, learners are guided to represent the information on a line graph.
In groups, learners are guided to share and discuss with other groups.

How do you represent an information on a line graph?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 184-186
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Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Interpreting line graphs of data from real life situations.
Identifying the mode of a set of discrete data from real life situations

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

Consider the graph showing the distance covered by a car travelling from town A to town D through B and C
Find the time the car left town A
Appreciate interpreting line graphs of data from real life situations.

In groups, learners are guided to consider the graph showing the distance covered by a car travelling from town A to town D through B and C
In groups, learners are guided to find the time the car left town A
In groups, learners are guided to find how far the car was at 1:00 p.m. from town A

How do you interpret line graphs of data from real life situations?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 187-191
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Learner's Book Grade 8 pg. 191-192

Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Calculating the mean of a set of discrete data from real life situations
Determining the median of a set of discrete data from real life situations

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

Identify the formula of working out the mean.
Consider the ages of your fellow classmates and find the sum of the ages.
Enjoy calculating the mean of a set of discrete data from real life situations.

In groups, learners are guided to identify the formula of working out the mean.
In groups, learners are guided to consider the ages of your fellow classmates and find the sum of the ages.
In groups, learners are guided to divide the sum by the total number of learners.

How do you work out the mean of a set of discrete data?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 193-194
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Learner's Book Grade 8 pg. 194-196

Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Digital device

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

Open the link: https://youtube.be/IldxOU-v3sM
Watch the video clip on calculating mean of discrete data
Appreciate the use of digital devices.

As a class, learners are guided to open the link: https://youtube.be/IldxOU-v3sM
As a class, learners are guided to watch the video clip on calculating mean of discrete data.
As a class, learners are guided to write short points about the video.

What have you learnt about mean and median of discrete data?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 196
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Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Probability; Identifying events involving chance in real life situations
Performing chance experiments in different situations

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

Identify events involving chance in real life situations.
Classify the events in learner's book 8 as likely, unlikely, must happen and cannot happen.
Appreciate the events involving chance in real life situations.

In groups, learners are guided to identify events involving chance in real life situations.
In groups, learners are guided to classify the events in learner's book 8 as likely, unlikely, must happen and cannot happen.
In groups, learners to discuss and compare with other groups.

How do you identify events as likely, unlikely, must happen and cannot happen?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 197
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Learner's Book Grade 8 pg. 198-199

Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Writing experimental probability outcomes in different situations
Expressing probability outcomes in fractions in different situations

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

Toss a fair dice ten times.
List down all the outcomes obtained from the trials
Appreciate writing experimental probability outcomes in different situations.

In groups, learners are guided to toss a fair dice ten times.
In groups, learners are guided to list down all the outcomes obtained from the trials.
In groups, learners are guided to using the outcomes obtained, fill in the table in learner's book 8 page 199

Which are some examples of chance experiments?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 199-200
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Learner's Book Grade 8 pg. 200-202

Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Expressing probability outcomes in decimals or percentages in different situations
Digital devices

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

Use paper cut-outs marked letters A to E.
Shuffle the paper cut-outs and draw one cut-out, note the letter and return the cut-out.
Appreciate expressing probability outcomes in decimals or percentages in different situations.

In groups, learners are guided to use paper cut-outs marked letters A to E.
In groups, learners are guided to shuffle the paper cut-outs and draw one cut-out, note the letter and return the cut-out.
In groups, learners are guided to list all the outcomes and fill in the table in learner's book 8 page 203

How do you express probability outcomes in decimals or percentages?

KLB; Top Scholar: Mathematics
Learner's Book Grade 8 pg. 203-204
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Learner's Book Grade 8 pg. 204

Oral questions Oral Report Observation Written exercise

Data Handling and Probability

Digital devices

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

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

Open the link: https://www.youtube.com/watch?v=ny-cgmyNoWE
Watch the video clip on probability.
Appreciate the use of digital devices.

In
groups, learners are guided to open the link:
https://www.youtube.com/watch?v=ny-cgmyNoWE

In groups, learners are guided to watch the video clip on
probability.

In groups, learners are guided to write short points about the video.

What have you learnt about probability?

KLB;
Top Scholar: Mathematics
Learner's Book Grade 8 pg. 204

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Oral questions Oral Report Observation Written exercise