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MEP Jamaica: STRAND I
UNIT 31 Angles and Symmetry: Lesson Plans
STRAND I: Geometry and Trigonometry
UNIT 31: Angles and Symmetry
Lesson 31.4 Parallel and
Intersecting Lines
CSEC Objective: parallel and intersecting lines
Lessons Aims:
After this lesson, the student should:
 know and understand the angle facts for parallel and
intersecting lines.
Prerequisite Knowledge: Angles, parallel and intersecting lines
Key Vocabulary:
parallel lines, intersecting lines, opposite angles,
corresponding angles, alternate angles
Challenges:
There are three special types of angles: opposite, corresponding
and alternate. This might be confusing for some students.
Teaching Notes:
Ensure that students fully understand and appreciate what is meant
by opposite, corresponding and alternate angles.
PowerPoints:
PP 31.3
Lesson Plans:
Review homework
Introduction
Worked Example
Exercises
Review answers
Exercises
Review answers
Mental Test
Closing activity
Homework
DS 31.4
DS 31.5 or ST 31.4, WE1 - WE4
ST 31.4, Q1 (some of)
ST 31.4, Q2 (some of)
M31B
ST 31.4, Q8
ST 31.4, Q9 and Q10
Relevant CSEC Questions:
RT Q7 and Q8
Glossary of Terms:
Opposite Angles
When any two lines cross, two pairs of equal angles are formed.
The two angles marked a are a pair of opposite equal angles.
The angles marked b are also a pair of opposite equal angles.
Corresponding Angles
When a line crosses a pair of parallel line a  b
The angles a and b are called corresponding angles.
Alternate Angles
The angles c and d are equal.
 CIMT and e-Learning Jamaica
a
c
d b
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