Lesson plan in technical drawing

1. DATE: __________________
SUBJECT: TLE 9 YEAR LEVEL: GRADE 9
GENERAL TOPIC: Principles of Orthographic Drawing
Content Standard
The learner demonstrate an understanding of concepts and
underlying principles of interpreting/drawing technical drawing.
Performance
Standard
The learner shall be able to interpret/ execute technical drawing.
Learning
Competencies Code
TLE_IAAUT09-12ITD-IVf-g-24
Specific Learning Objectives
K  Explain orthographic drawing
S  Draw a sample of Orthographic sketching .
A
 Express their understanding on orthographic projection through giving
experiences in a real-life situation
STRATEGIES SIM’s
ROUTINE ACTIVITIES:
a. Greetings
b. Prayer
c. Checking of attendance
Before I started the review, I arrange the seats of my students. Those
who are not able to see clear in far(Near-sighted) I let them seat them in
front rows, so they could be able to see clear the visual aids.
REVIEW:
Identify the styles of letters:
Very Good…
Note: Students will give their insights / answer based on the given
questions.
(Answer may vary)
Modern
Roman
Single-
Stroke
Gothic
Old
English
Script Italic
MOTIVATION:
UNSCRUMBLES the letters to find the hidden words.
 CIHPARGOHTRO GNIWARD
 TIONPROCEJ
 TPO IWVE
 TONRF EVWI
 IEDS IEWV
Old
Engl

2. Answer:
 ORTHOGRAPHIC DRAWING
 PROJECTION
 TOP VIEW
 FRONT VIEW
 SIDE VIEW
Note: Ask students what word they formed? /know about the hidden word
PRESENTATION:
Today’s lesson will lead you to understand Principles of Orthographic
Drawing
Are you ready for our topic?
ACTIVITY:
(Group the students into 2, set the standards on groupings and distribute the
activity cards and materials)
Standards for Grouping
1. Be cooperate.
2. Minimize your voice.
3. Do not roam around.
4. Read the instruction carefully.
TASK 1:
Directions: Based on the pictorial given, draw the three views on the space
provided.
TASK 2:
Complete the following.
1. The term orthographic came from____________________.
2. A projection box is __________________________________.
3. Give at least three principles and illustrate them
______________________.
MATERIALS
NEEDED:
Pencil ,
drawing paper
(short bond
paper), eraser,
ruler

3. ANALYSIS:
 What is Orthographic drawing?
 What is a Projection box?
 What are the 6 different views of Orthographic drawing?
Very Good…
Note: Students will give their insights / answer based on the given
questions.
(Answer may vary)
ABSTRACTION:
 What are the most preferred view in orthographic? Why?
 As a student, how will this lesson helps you as you proceed in
studying drafting?
Very Good…
Note: Students will give their insights / answer based on the given
questions.
(Answer may vary)
APPLICATION:
Drawing orthographic projection is one of the basic skills in accomplishing
huge and complicated projects in industries like houses, building and
bridges.
-Can it be also apply in a daily life living?
ASSESSMENT:
Directions: Choose the letter of the correct answer. Write only the letter of
the correct answer on the space provided.
1. The term orthographic came from the Greek word orthos and graphos
which means___________________.
A. draw and graph C. lines and shapes
B. write and draw D. projection and lines
2. No line of the object can be projected longer than its true.
A. height C. width
B. length D. volume
3. A surface to the plane of projection will be shown in its exact shape
and size.
A. angled C. parallel
B. inclined D. perpendicular
4. The top view is directly above the____________.
A. bottom view C. rear view
B. front view D. side view
5. The of the top view is equal to the width of the side views.
A. length C. width
B. height D. volume

4. ASSIGNMENT:
Draw the orthographic view of the given object.
REMARKS
REFLECTION
a. No. of learners who learned 80 % on the formative assessment.
b. No. of learners who require additional activities for remediation.
c. Did the remedial lesson work? No. of learners who have caught
up with the lesson.
d. No. of learners who continue to require remediation.
e. Which of my teaching strategies worked well? Why did these
work?
f. What difficulties did I encounter which my principal or supervisor
can help me solve?
g. What innovation or localized materials did I used/discover which
I wish to share with other teachers?