TLE - Mechanical Drafting (Teaching Guide)

Republic of the Philippines
DEPARTMENT OF EDCUATION
K to 12 BASIC EDUCATION CURRICULUM
TECHNOLOGY AND LIVELIHOOD EDUCATION
TEACHER’S GUIDE
Exploratory Course on
MECHANICAL DRAFTING

K to 12 TECHNOLOGY AND LIVELIHOOD EDUCATION
INDUSTRIAL ARTS - MECHANICAL DRAFTING
(Exploratory)
TABLE OF CONTENTS
Introduction ............................................................................................................................................................................................................................... ... 3
Background Information
The Overall Goal of the K to 12 Curriculum ..................................................................................................................................................................... . 3
The Conceptual Framework of the Teaching of TLE ... ................................................................................................................................................. ... 3
The TLE Exploratory Courses ....................................................................................................................................................................................... ... 5
The Learning Modules and Lessons .......................................................................................................................................................................................... . 6
New Feature of the Teaching of TLE ... .................................................................................................................................................................................... ... 6
About the Learning Module
Design of the Module ...................................................................................................................................................................................................... .. 7
Parts of the Lesson .......................................................................................................................................................................................................... . 8
Reflection ................................................................................................................................................................................................................................... 11
Curriculum Guide ...................................................................................................................................................................................................................... . 12
**TWG on K to 12 Curriculum Guide - version April 10, 2012 2

(Exploratory)
Teacher’s Guide for TLE Exploratory Course on MECHANICAL DRAFTING
Introduction
This Teacher’s Guide is intended for you, the TLE teacher, who teaches any of the more than 24 TLE exploratory courses in the Grades 7 and 8 of the K to 12
curriculum. To ensure that you teach the TLE exploratory courses the way they were intended to be taught, you must see the big picture of the K to 12 curriculum and
the teaching of TLE. Some background information is necessary.
Background Information
1. The Overall Goal of the K to 12 Curriculum
The K to 12 Curriculum has as its overarching goal the holistic development of every Filipino learner with 21st
century skills who is adequately
prepared for work, entrepreneurship, middle level skills development and higher education. The over arching goal of the K to 12 curriculum, tells
you that the teaching of TLE plays a very important role in the realization of the overall goal of the curriculum. Whether or not the K to 12 graduate
is skilled and ready for work, entrepreneurship and middle skills development depend to a great extent on how effectively you taught TLE.
2. The Conceptual Framework of the Teaching of TLE
Below is a schematic diagram of Technology and Livelihood Education (TLE) framework in general secondary schools. This should guide you in the
teaching of the TLE exploratory courses.

(Exploratory)
Figure 1.TLE Framework
The diagram shows that Technology and Livelihood Education encompasses the field of Home Economics, Industrial Arts, Agri-Fishery Arts and ICT. The 24 TLE
courses can be categorized under any of these fields.

(Exploratory)
TLE is geared towards the development of technological proficiency and is anchored on knowledge and information, entrepreneurial concepts, process
and delivery, work values and life skills. K to 12 TLE is…
a. one that is built on adequate mastery of knowledge and information, skills and processes, acquisition of right work values and life skills;
b. one that equip students with skills for lifelong learning; and
c. one that is founded on cognitive, behavioral or psychomotor and affective dimensions of human development.
The diagram likewise shows that entrepreneurial concepts also form part of the foundation of quality TLE. It is expected that your TLE students, after
using the Learning Module on Entrepreneurship, imbibe the entrepreneurial spirit and consequently set up their own businesses in the areas of
Agri-Fishery Arts, Industrial Arts, Home Economics, and Information and Communication Technology.
TLE by its nature is dominantly a skill subject and so you must engage your students in an experiential, contextualized, and authentic teachinglearning
process. It is a subject where your students learn best by doing. It is integrative in approach. For instance, it integrates entrepreneurship with all the
areas of TLE. It integrates concepts, skills and values.
3. The TLE Exploratory Courses
TLE in Grades 7 and 8 are exploratory in nature. Your school will choose at least 4 from the list of 24 courses for which 23 Learning Modules have been
prepared. 1
Your school’s choice is determined by the availability of its resources (faculty and facilities) as well as the local needs and resources of
the community.
The 24 TLE exploratory courses focus on four basic common competencies: 1) use and maintenance of tools and equipment; 2) mensuration and
calculation; 3) occupational health and safety procedures, and 4) preparation and interpretation of technical drawing. Why are these competencies called
basic? Because they are competencies that you must acquire in order that you can do higher level competencies. They are also described common
because these are true to all TR-based TLE courses.
1
There are 24 TLE courses but there are only 23 Learning Modules because there is one Learning Module for Tailoring and Dressmaking.

(Exploratory)
The Learning Modules and Lessons
There is a Learning Module for each exploratory course. If there are 24 exploratory courses then you have 24 Learning Modules in your hands. But you will
use 4 Modules only for the entire year in Grade 7(plus a fifth one on Entrepreneurship) and another 4 Modules in Grade 8 (plus a fifth one on
Entrepreneurship).
Each Learning Module consists of 4 to 5 Lessons2
. The Lessons are focused on the 4 to 5 basic competencies. To avoid meaningless repetition of the teaching
of the 5 common competencies, you have to teach them in the context of the TLE course. For example, you teach “use and maintenance of tools” in beauty care
when you are teaching the course on Beauty Care. You teach the same competencies - use and maintenance of tools-in Horticulture but in the context of
Horticulture and so your tools will not be entirely the same.
New Feature on the Teaching of TLE
What’s new in the teaching of TLE in the K to 12 curriculum? In the K to 12 curriculum, the TLE courses are taught based on the learning
outcomes and performance criteria stated on the Training Regulations(TR)from Technical Education and Skills Development Authority (TESDA). They are TR-
based.
Why is this necessary? To prepare the K to 12 graduate for lucrative work, he/she must earn a National Certificate (NC)I, II or even an NC of higher level
that is required by industries. This he/she earns after passing an assessment given by TESDA.
How can you ensure that the K to 12 high school student (Grade 9 to 12) pass TESDA assessment and obtain an NC? By seeing to it that you teach
the TLE course in accordance with the performance criteria and learning outcomes laid down in the TESDA Training Regulations.
Do the exploratory courses enable the high school student to earn already an NC? Not yet. Completion of the exploratory courses may not yet qualify
a high school student to take an assessment for an NC. Instead, it helps him/her earn a Certificate of Competency (COC) at least in Grade 9 that will lead eventually
him/her to an NC. In short, the COC paves the way to the earning of an NC.
2
Some Learning Modules combined use and maintenance of tools to make one Lesson, so the number of Lessons amount to 4; others made separate Lessons for use of tools and for
maintenance of tools, thus the total is 5 Lessons.

(Exploratory)
Student’s choice of TLE specialization begins in Grades 9.Afterhaving been exposed to an array of TLE courses during the exploratory phase in the first two
years, the student will be most benefited, if in Grades 10,11, or 12 he/she continues with a TLE course in which he/she already has a COC. In that way, he/she will
get an NC faster.
About the Learning Module
1. Design of the Module
a. The Module is designed to be a teacher-assisted learning kit or a self-learning kit on competencies that a Grade 7 TLE ought to possess. It
explores the course on Aquaculture which helps your student earn a Certificate of Competency in Grade 9which leads to a National Certificate
Level I / II (NCI / II)in Grades 10, 11 or 12.
b. The Learning Module is made up of 4 to 5 Lessons based on the competencies. Each Lesson contains the following:
1) Learning Outcomes
2) Performance Standards
3) Materials/Resources
4) Definition of Terms
5) What Do You Already Know?
6) What Do You Need to Know?
7) How Much Have You Learned?
8) How Do You Apply What You Learned?
9) What Is Your Score?
10) References
There are some TLE Modules which have a section on “How Do You Extend Your Learning?”, This section is meant for enrichment. It is usually given
as an assignment for not everything can be taught and done in the classroom given a limited time.
c. The Self-check can also serve as the posttest of the lesson.

(Exploratory)
2. Parts of the Lesson. -The following explain the parts of each Lesson and describe what your students’- as well as your tasks are.
Part of the Lesson Students’ Task Teacher’s Task
1. Learning outcomes are what your TLE
student is supposed to know and be able
to do after using the module. Since our
TLE courses are TR-based, all learning
outcomes are lifted from the TESDA TR. In
the Curriculum Guide (the matrix which
contains Content Standard, Performance
Standard, Learning Competencies,
Projects/Activities, Assessment, Duration),
the identified Learning Outcomes are
written in the column of Learning
Competencies.
Students acquaint themselves with the You introduce the learning outcomes to your students
learning outcomes and performance and make sure that they understand them and make
standards and make them their personal these learning targets their own.
goals.
Make these your goals for instruction.
2. Performance Standards are referred to
as “performance criteria” in the TESDA TR.
They are more specific descriptions of the
student’s behavior that serve as evidence
that the expected learning outcomes have
been realized with the expected level of
proficiency or in accordance with
established standards.
The learning outcomes and performance
standards set the direction of your lessons.
Students clearly understand the You introduce the performance standards to your
performance standards and make them students and make sure that they understand them and
their own learning goals. make these performance standards their own.
Let these standards give your lesson its specific direction.

(Exploratory)
These are what you should teach and, in
turn, what you should assess. They are
identified and are written for you in the
Curriculum Guide.
3. Materials/Resources and References Get to know the materials. They are part of Prepare the materials you need in advance. For gadget,
To teach effectively, you need materials the Lesson. tool or equipment, it is always wise to prepare, check and
and references. Materials may include try them in advance to ensure that they function when
equipment, hand tools or consumables. By all means, read the references for
The references are the books, magazines, lesson mastery.
articles, websites you yourself and your
students will read or refer to in order to
gain greater understanding of the lesson.
They are either in soft copy or hard copy.
you use them. As the saying goes “forewarned is
forearmed.”
Be resourceful in the preparation of materials. You are
strongly encouraged to use appropriate local materials as
substitute for listed materials that are not available.
For effective teaching, your lesson preparation should
include reading the list of references.
Do not limit yourself to the list of references. If you
discover good reference material/s, add to the list of
references.
Introduce the references to your students. Motivate them to
read these references as they go through the module for
mastery of the lesson.
4. The definition of terms and acronyms Refer to the definition of terms for greater Remind your students to refer to the definition of terms
will help you understand the meaning of understanding of the lesson. and acronyms for clearer understanding of the lesson.
key words in your lesson. Defining key
words as they are used in your lesson will

(Exploratory)
ensure that the key terms in your lesson
mean one and the same for everyone in
class and so avoid misunderstanding.
5. The section “What Do You Already Take the test honestly.
Know” is intended to determine entry
knowledge and skills of your students to Check answers against the answer key
find out if you have to teach the lesson, provided.
teach some parts of the lesson or skip it
entirely because your students already
know it. This is done by way of a pretest.
Tell your students to accomplish the pretest. Explain that
the purpose of the pretest is to find out how much they
already know about the lesson in order to determine your
next steps. It is, therefore, necessary that they take the
test honestly, if they want to learn or want to be helped.
Make it clear to them that their scores will not be
recorded for grading purposes and will not be taken
against them.
If you find out that your students already know what you are
about to teach, logic dictates that you do not need to teach it
anymore. You may as well proceed to the next lesson. If,
however, you find out that they do not yet know what you are
about to teach, then by all means teach. Or if you discover
that your students have some erroneous concepts, then
teach and correct their misconceptions. To know what your
students already know and do not yet know will guide you in
adjusting your instruction.
6. “What Do You Need To Know?”- This
section contains one or more Information
Sheets and for some modules an
Operation Sheet. These are important
notes for the TLE student to read after
which he/she is asked to do a Self-check to
Read and understand the Information Make sure students are engaged in reading the
Sheet/s and /or Operation Sheet. Information Sheet/Observation Sheet and in answering
the self-check.
Be prepared For a Self-check which serves
as a posttest. Give assistance to your students where needed.

(Exploratory)
determine how much he/she has learned. Correct answers by referring to the answer
The self-check functions as a pretest. key.
7. “How Do You Apply What You
Learned?” - In this section, you give your
student the opportunity to transfer what
he/she has learned in another activity or in
real life situation. Ideally, this should be a
performance test, what you usually call
practical test. If “the proof of the pudding is
in the eating”, then your student must be
able to apply what she/he learned in real-
life setting or must be able to come up with
a product as an evidence of learning.
Do the Activity. Find a way to test real life application of what your
students have learned.
To determine level of performance, use the
scoring rubrics or check answers against Do not hesitate to use ways of determining how your
the answer key, which ever is applicable. students can apply learned facts and concepts which are
more authentic and realistic than that/those given in the
Reflect on assessment results. Module.
Reflect on assessment results. Use assessment results
in planning your instruction.
8. How Do You Extend Your Learning? -
As the word implies, this activity is done
outside class hours for enrichment
purposes. This can reinforce lesson
mastery.
Do the task assigned outside class hours. Motivate the students to do the task by making clear what
the enrichment activity is about -why it is given, how it is
done, how it relates to the class lesson .
Reflection
It is a good habit to reflect on your teaching for the day - what went well, what did not go well, why this activity went well with this group, why it didn’t work
well with the other group. What are your realizations? What are lessons learned? Jot them down in your diary. Commit them to your memory. If you do this
consistently, you will find your delivery improve substantially.

(Exploratory)
Curriculum Guide for the Exploratory Course
For you to get a complete picture of the complete TLE exploratory course on MECHANICAL DRAFTING, you are hereby provided with the Curriculum Guide
on Mechanical Drafting .
Content Standard Performance Standard
Learning
Competencies
Projects/Activities Assessment Duration
LESSON 1: PREPARING DRAFTING MATERIALSAND TOOLS/DRAWING INSTRUMENTS
Demonstrate understanding
of/on:
Types and uses of drafting 1. Drafting materials, Tools and LO1.Identify 1. Compiling sample pictures Performance 6 hours
materials /tools and Drawing instruments are drafting materials of the different tools and test
drawing instruments identified as per job and tools/drawing drawing materials and Written test
Proper manipulation of requirements. instruments classifying them.
drafting materials tools and 2. Materials and drawing tools applicable to a 2. Demonstrating the proper
drawing instruments are classified according to their specific job. manipulation of drawing
uses. instruments.
Procedures in receiving 1. Materials and tools are LO2. Request, 1. Preparing list of drafting Performance
and storing tools and received and inspected based receive, inspect materials and tools per job test 3 hours
materials on the specified quantity as and store drafting requirement Written test
Different requisition forms requisition. materials and 2. Filling-up different forms
and procedures 2. Tools and materials are tools. such as requisition slip,
checked for damages and borrower’s slip, etc.
manufacturing defects 3. Labeling tools and
materials and
storing/safekeeping them
properly.
4. Testing the functionality of
delivered tools and

(Exploratory)
Learning
Competencies
Projects/Activities
materials.
Assessment Duration
LESSON 2: PERFORMINGBASIC MENSURATION AND CALCULATION
of/on:
Different measuring 1. Measuring instruments are LO1. Select and 1. Identifying the different Self-paced 6 hours
instruments and their selected and used according use measuring instruments learning
application to the level of accuracy measuring 2. Observing proper use of activities
required. instruments. measuring instruments Guided
2. Measurements taken are demonstration
accurate to the finest (performance
gradation of the selected based)
measuring instrument.
3. Measuring techniques used
are correct and appropriate to
the instrument used.
Cleaning and storing 1. Measuring instruments are LO2. Clean and 1. Storing/safe keeping Performance test
procedure for measuring cleaned in accordance with store measuring measuring tools properly 2 hours
instruments established standards. instruments.
2. Measuring instruments are
stored in accordance with
established standards.
Conversion of fraction to 1. Conversion results of fraction LO3. Convert 1. Solving problems and Written test 2 hours
decimal or decimal to to decimal are accurate up to fraction to exercises correctly in:
fraction 2 decimal places. decimal and a. converting fraction to
2. Conversion results of decimal vice versa decimal or decimal to

(Exploratory)
Content Standard
Trade Mathematics and 1.
Measurement
Two system of 2.
measurements
Conversion of units of
linear measurement.
Performance Standard
to fraction are accurate to the
nearest standard
measurement
English and metric
measurements identified.
Conversion of English to
metric system or metric to
English system is performed
according to standard
procedure.
Learning
Competencies
LO4. Convert 1.
English to
metric 2.
measureme
nt system 3.
and vice
versa
Projects/Activities
fraction
Solving problems and
exercises correctly.
Converting units of linear
measurement.
Converting decimal to
fraction
Assessment Duration
Written test 2 hours
LESSON 3: INTERPRETING WORKING PLANS AND SKETCHES
of/on:
Alphabet of lines
Line Sketching
Theories and principles of
orthographic projections
Orthographic Projections
Pictorial drawing
More on Oblique Drawing
Scaling
Rules in Dimensioning
Preparation of Working
Plans
Assembly and detailed
drawing
1. Orthographic and pictorial
drawings are interpreted
according to drawing
standards.
2. Assembly and detailed
drawings are interpreted
according to drawing
standards.
LO1.Identify
assembly
and detailed
drawing.
1. Practicing line sketching
2. Sketching sample detail
and assembly drawings
3. Observing drawing
standards
4. Sketching orthographic
views and pictorial views
5. Preparing a working plan
6. Identifying proper line
applications
Written test
Performance
test
13 hours

(Exploratory)
Learning
Competencies
Projects/Activities Assessment Duration
LESSON 4: APPLYING SAFETY PRACTICES
of/on:
Occupational safety 1. Hazards are identified LO1. Identifying 1. Observing safety work Written test 4 hours
standards and enterprise correctly in accordance with hazardous habits in the work place Performance
safety policies. OHS procedures. area 2. Multimedia presentation test
Practicing Proper 2. Safety signs and symbols are
Procedures in using identified and adhered to in
drafting tools, materials accordance with workplace
and instrument safety procedures.
Keeping Workplace Clean
and organized following
5S
Accident Prevention Signs
and Symbols
Hazards in the workplace
Types of workplace
hazards and examples
Personal protective 1. Personal protective LO2. Use personal 2. Familiarizing oneself with Written test 2 hours
equipment (PPE) for clothing/equipment (PPE) protective the different types and Actual
different drafting identified per job clothing and uses of personal protective demonstration
operations requirements. devices equipment (PPE)
2. Proper wearing of PPE is 3. Multimedia presentation
properly observed in
accordance with workplace
safety policies.
40 hours

(Exploratory)
“By three methods we may learn wisdom: First, by reflection, which is noblest; second, by imitation, which is
easiest; and third by experience, which is the bitterest.”
- Confucius

TLE - Mechanical Drafting (Teaching Guide)

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