MATHEMATICS Lesson Plan
Subject : Mathematics
Topic : Perpendicular Lines
Level : Primary 4
Duration : 2 periods
Pre-requisite
Pupils are able to measure right angles with a set square or a protractor.
Specific Instructional Objectives
Pupils should be able to identify perpendicular lines.
Thinking skills
Identifying Patterns & Relationships
Experimental Inquiry
Learning & Teaching Materials
Learning Environment
Half computer laboratory
Instructional Strategies
Maths Adventure 4A.
Pause after Stage 1 of presentation.
Pupils can use a set square or a protractor to check the right angles.
10 minutes and record their answers in Worksheet (1).
Prepared by:
Ms Kang Mui Tiang of Kong Hwa School
MATHEMATICS Lesson Plan
Navigation Guide
Courseware : Zarc’s Primary Maths Adventure 4A
6. Click on Exercise to do the exercise in the courseware.
7. Click Enter or Green-arrow key after each question.
8. To look for hints or answers, click Enter.
Prepared by Ms Kang Mui Tiang
Kong Hwa School
Kong Hwa School
Maths Worksheet (1)
Name : ___________________( )
Class : Pr 4 ( )
Date : _____________
Topic : Perpendicular Lines
Fill in the correct answers in the boxes.
You may need to use a set square or a protractor.





Prepared by Ms Kang Mui Tiang
Kong Hwa School
Kong Hwa School
Maths Worksheet (2)
Name : ___________________( )
Class : Pr 4 ( )
Date : _____________
Topic : Perpendicular Lines
How many pairs of perpendicular lines are there in the figures ?
Can you identify them ?
You may need to use a set square or a protractor.
e.g. A B
There are 4 pairs of
perpendicular lines.
AB BC
AB AD
D C CD AD
CD BC
G
lines.
H F
E
_____________________________________________________________
2. I J
There are _______ pairs of
perpendicular lines.
K
M L
3. X There are ______ pairs of perpendicular lines.
Y Z
_________________________________________________________
4. R S There are ______ pairs of
perpendicular lines.
W V
T
U
__________________________________________________________
5. N O There are _____ pairs of
perpendicular lines.
Q P
_________________________________________________________
6. C D There are _____ pairs of
perpendicular lines.
G
F E
Prepared by Ms Kang Mui Tiang
Kong Hwa School