LESSON PLANS – Grade 8
Chapter 8: Geometric figures
Learning Areas: Maths Grade: 8
Duration: 15 hours Weeks: 18 – 20
Learning Outcome Assessment Standards Integration
LO3:
Space and shape
Recognises, visualises and names geometric figures
Describes and classifies geometric figures and solids
Uses vocabulary to describe
Uses a pair of compasses, ruler & protractor
LO4: Measurement Estimates, compares, measures and draws angles
Investigates the relationship between the sides of a right angled triangle
Uses the Theorem of Pythagoras
Describes and illustrates ways of measuring in different cultures
Technology
LO1
Arts and Culture
LO1
Content / Knowledge:
• Recognise, visualise and name geometric figures and solids
• Describe and classify geometric figures and solids properties
• Use vocabulary
• Use a pair of compasses, ruler & protractor
• Estimate, compare, measure and draw angles
• Investigate, develop the Theorem of Pythagoras
• Use the Theorem of Pythagoras
• Describe and illustrate ways of measuring
Learning activities Teaching methods/approach Resources
Lesson 1: Lines and angles
LB p115
Intersecting lines LB p115
Introduce lines and angles TG p115
Activity 1a: Investigating vertically opposite angles
TG p115
Lesson 2: Parallel lines LB 116
Angle properties of parallel lines
LB p117
Activity 1b: Finding angle relationships for parallel
lines TG p116
Discussion TG p116
Lesson 3: Angles LB p119
Complementary and
supplementary angles LB p119
Activity 2a: Working with complementary and
supplementary angles TG p117
Lesson 4: Triangles LB p121
Ancient people used right angles
LB p123
Activity 2b: Investigating the angles of a triangle
TG p118
Activity 3a: Using a knotted rope to find a right angle
TG p119
Lesson 5: Right-angled triangles
LB p124
Activity 3b: Investigating the relationship between the
sides of a right-angled triangle TG p119
Lesson 6: Theorem of
Pythagoras LB p126
Theorem of Pythagoras TG p120
Lesson 7: Quadrilaterals
LB p129
Angles of quadrilaterals LB p129
Concave and convex
quadrilaterals LB p130
Diagonals of quadrilaterals
LB p130
Activity 4a: Identifying quadrilaterals TG p121
Activity 4b: Investigating the angles of quadrilaterals
TG p121
Demonstrate concave and convex quadrilaterals
TG p121
Activity 4c: Investigating the diagonals of
quadrilaterals TG p121
Lesson 8: Properties of
quadrilaterals LB p132
Explain properties of quadrilaterals TG p122
Lesson 9: Construction
techniques: Constructing a
triangle LB p133
Activity 5a: Constructing a triangle TG p122
Lesson 10: Construction
techniques: Constructing a
perpendicular bisector LB p134
Activity 5b: Constructing perpendicular bisectors
TG p123
Lesson 11: Construction
techniques: Constructing a
perpendicular from a point
outside a line LB p135
Demonstrate and learners work individually TG p123
Maths Today
Grade 8
Learner's Book
and Teacher's
Guide
Protractor
Piece of rope
Pair of compasses13
Lesson 12: Construction
techniques: Constructing a
perpendicular from a point on a
line LB p135
Demonstrate and learners work individually TG p123
Lesson 13: Construction
techniques: Draw a line parallel to
a given line LB p136
Demonstrate and learners work individually TG p123
Lesson 14: Construction
techniques: Constructing a kite
LB p139
Activity 5c: Constructing a kite TG p123
Lesson 15:
Assessment LB p140 Self-assessment rubric discussion TG p124
Assessment:
Type of assessment:
Formal assessment for Lessons 4, 7 and 15
Informal assessment: all other activities can be used
for informal assessment
Form of assessment:
Rubric 4 LO3 for Lesson 4; rubric 1 LO3 for Lesson 7;
memo (TG p124) for Lesson 15
Reinforcement:
Revise properties and demonstrate with concrete
apparatus
Use of computer software for consolidation and extra
challenges
Expanded opportunities:
Use of computer software for consolidation and extra
challenges
Teacher reflection: 14
LESSON PLANS – Grade 8
Chapter 9: Transformations
Learning Areas: Maths Grade: 8
Duration: 15 hours Weeks: 21 – 23
Learning Outcome Assessment Standards Integration
LO3:
Space and shape
Uses transformations and symmetry to investigate properties
Uses proportion to describe the effect of enlargement and reduction
Locates positions on coordinate systems
Technology
LO1
Arts and Culture
LO1
Social Sciences
(Geography)
LO2
Content / Knowledge:
• Use transformations
• Use symmetry
• Use proportion
• Describe effect of enlargement and reduction
• Locate positions on coordinate systems
Learning activities Teaching methods/approach Resources
Lesson 1: Reflection LB p141 Activity 1: Reflecting figures TG p125
Lesson 2: Rotation LB p145 Activity 2: Using tracing paper to do rotations
TG p128
Lesson 3: Rotational symmetry
LB p147
Activity 3: Classifying 2-D figures TG p129
Lesson 4: Translation LB p150
Locating position LB p150
Activity 4a: Describe movement between points in a
Cartesian Plane TG p131
Activity 4b: Translating figures TG p132
Lesson 5: Enlargement
LB p154
Drawing enlargements LB p155
Activity 5a: Enlarging with a scale factor greater than
one TG p134
Activity 5b: Enlarging with a scale factor smaller than
one TG p134
Lesson 6:
Assessment LB p157 Assessment TG p136
Maths Today Grade 8
Learner's Book and
Teacher's Guide
Tracing paper
Assessment:
Types of assessment:
Formal assessment for Lessons 3, 4 and 6
Informal assessment all other activities can be used for
informal assessment
Form of assessment:
Rubric 1 LO3 for Lesson 3; rubric 3 LO3 for Lesson 4;
memo (TG p136) for Lesson 6
Reinforcement:
Extra examples of the new concepts introduced
Expanded opportunities:
Transformations with variety of shapes
Enlargement with higher scale factors
Teacher reflection: 15
LESSON PLANS – Grade 8
Chapter 10: Geometric solids
Learning Areas: Maths Grade: 8
Duration: 10 hours Weeks: 24 – 25
Learning Outcome Assessment Standards Integration
LO3:
Space and shape
Recognises, visualises and names geometric figures and solids
Designs and uses nets to make models of geometric solids
Draws and interprets sketches of geometric solids
Technology
LO1
Arts and Culture
LO1
Natural Sciences
LO1
Content / Knowledge:
• Recognise, visualise and name geometric figures and solids
• Deal with platonic solids (tetrahedron, cube, octahedron, dodecahedron, icosahedrons)
• Design and use nets
• Make models of geometric solids
• Draw and interpret sketches of geometric solids from different perspectives.
Learning activities Teaching methods/approach Resources
Lesson 1: Regular solids
LB p158
Activity 1a: Making models of regular solids TG p138
Lesson 2: Classification of
solids LB p164
Activity 1b: Classifying solids TG p138
Lesson 3: Drawing solids
LB p165
Activity 1c: Drawing solids TG p140
Lesson 4: Different views of
solids LB p168
Activity 2: Drawing different views TG p142
Lesson 5:
Assessment LB p172 Self-assessment rubric discussion TG p144
Maths Today Grade 8
Learner's Book and
Teacher's Guide
Models of solids
Assessment:
Types of assessment:
Formal assessment for Lessons 2, 4 and 5
Informal assessment: all other activities can be used
for informal assessment
Form of assessment:
Rubric 1 LO3 for Lesson 4; rubric 2 LO3 for Lesson 2;
memo (TG p144) for Lesson 5
Reinforcement:
Revision of solids
Extra examples of the new concepts introduced
Expanded opportunities:
Complex sketches of different views of objects
Constructing complicated solids
Teacher reflection: 16