TLE-CSS9-Q2-M10: Introduction to Technical Drawing PDF

T. L. E. COMPUTER SYSTEMS SERVICING 9 EDUCATION Technology and Livelihood Education– Grade 9 Quarter 2 – Module 10: Introduction to Technical Drawing First Edition, 2020 Republic Act 8293, Section 176 states that no copyright shall subsist in any work o...

T. L. E. COMPUTER SYSTEMS SERVICING 9 EDUCATION Technology and Livelihood Education– Grade 9 Quarter 2 – Module 10: Introduction to Technical Drawing First Edition, 2020 Republic Act 8293, Section 176 states that no copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties. Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names, trademarks, etc.) included in this module are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them. Published by the Department of Education - Schools Division of Pasig City Development Team of the Self-Learning Module Writer: Sarah Jane C. Cabalquinto Editors: Maria O. del Barrio, Jhoanna V. Navata Reviewers: Maria O. del Barrio, Jhoanna V. Navata, Maricel F. Azcarraga Illustrator: Patrick D. Esmao Layout Artist: Management Team: Ma. Evalou Concepcion A. Agustin OIC-Schools Division Superintendent Aurelio G. Alfonso EdD OIC-Assistant Schools Division Superintendent Victor M. Javeña EdD Chief, School Governance and Operations Division and OIC-Chief, Curriculum Implementation Division Education Program Supervisors Librada L. Agon EdD (EPP/TLE/TVL/TVE) Liza A. Alvarez (Science/STEM/SSP) Bernard R. Balitao (AP/HUMSS) Joselito E. Calios (English/SPFL/GAS) Norlyn D. Conde EdD (MAPEH/SPA/SPS/HOPE/A&D/Sports) Wilma Q. Del Rosario (LRMS/ADM) Ma. Teresita E. Herrera EdD (Filipino/GAS/Piling Larang) Perlita M. Ignacio PhD (EsP) Dulce O. Santos PhD (Kindergarten/MTB-MLE) Teresita P. Tagulao EdD (Mathematics/ABM) Printed in the Philippines by Department of Education – Schools Division of Pasig City  T. L. E. COMPUTER SYSTEMS SERVICING 9 Quarter 2 Self-Learning Module 10 Introduction to Technical Drawing Introductory Message For the Facilitator: Welcome to the Technology and Livelihood Education 9 Self-Learning Module on Introduction to Technical Drawing! This Self-Learning Module was collaboratively designed, developed and reviewed by educators from the Schools Division Office of Pasig City headed by its Officer-in-Charge Schools Division Superintendent, Ma. Evalou Concepcion A. Agustin, in partnership with the City Government of Pasig through its mayor, Honorable Victor Ma. Regis N. Sotto. The writers utilized the standards set by the K to 12 Curriculum using the Most Essential Learning Competencies (MELC) in developing this instructional resource. This learning material hopes to engage the learners in guided and independent learning activities at their own pace and time. Further, this also aims to help learners acquire the needed 21st century skills especially the 5 Cs, namely: Communication, Collaboration, Creativity, Critical Thinking, and Character while taking into consideration their needs and circumstances. In addition to the material in the main text, you will also see this box in the body of the module: Notes to the Teacher This contains helpful tips or strategies that will help you in guiding the learners. As a facilitator you are expected to orient the learners on how to use this module. You also need to keep track of the learners' progress while allowing them to manage their own learning. Moreover, you are expected to encourage and assist the learners as they do the tasks included in the module.  For the Learner: Welcome to the Technology and Livelihood Education Self-Learning Module on Introduction to Technical Drawing! This module was designed to provide you with fun and meaningful opportunities for guided and independent learning at your own pace and time. You will be enabled to process the contents of the learning material while being an active learner. This module has the following parts and corresponding icons: Expectations - This points to the set of knowledge and skills that you will learn after completing the module. Pretest - This measures your prior knowledge about the lesson at hand. Recap - This part of the module provides a review of concepts and skills that you already know about a previous lesson. Lesson - This section discusses the topic in the module. Activities - This is a set of activities that you need to perform. Wrap-Up - This section summarizes the concepts and application of the lesson. Valuing - This part integrates a desirable moral value in the lesson. Posttest - This measures how much you have learned from the entire module.  EXPECTATIONS At the end of the lesson, the students should be able to: A. define Technical Drawing; B. identify basic drawing instruments; C. distinguish Technical Drawing from Sketching/Freehand Drawing by illustrating sample output; and D. share experiences in creating sample drawing. PRETEST Matching Type: Directions. Match column A with the correct answer on column B, write only the letter of answer on the blank provided before the number. Column A Column B _______1. It is an act and discipline of making A. Eraser drawings that outwardly impart how something capacities or is built. B. Squares _______2. It conveys creative drawing that pass on thought, feeling, temperament or C. Technical Drawing circumstances. _______3. A type of drawing that is isometric, point D. Compass of view. _______4. An instrument that's utilized to clean or E. 3D drawings delete superfluous marks or redress off- base drawings. F. Sketching _______5. This instrument is used to draw arcs and circles.  RECAP Ever wondered how many terabytes of data you may fit on your hard drive or how many megabytes in a gigabyte? With that in mind, let’s convert the following and choose the correct answer from the storage below. Write your answer on the space provided. 120 8,192 2,048 5,120 20,480 1. 20 megabyte (MB) = ____________ kilobyte (KB) 2. 2 kilobyte (KB) = ____________ byte (B) 3. 5 gigabyte (GB) = ____________ megabyte (MB) 4. 15 byte (B) = ____________ bit (b) 5. 8 terabyte (TB) = ____________ gigabyte (GB) LESSON Introduction One of the best ways to communicate one's thoughts is through a form of picture or drawing. Drawings do the communication best since a picture is worth a thousand words. It is one of the simplest and most efficient means of communicating visual ideas. Giving all of the data required to create the things and being accurate in that data is the main objective. A drafter, draftsperson, or designer could be an individual who makes a drawing (technical or expressive). A professional drafter who makes technical drawings is in some cases called a drafting technician. What is Technical Drawing? Technical drawing is an act and discipline of making drawings that outwardly impart how something capacities or is built. It is fundamental for conveying thoughts in industry and engineering. It is the regular language of the individuals who work in innovation. Architects, planners, originators, technologists, professionals and specific specialists use them to speak with one another. What is Technical Drawing used for? Technical drawing could be a plan, rendered to scale, that's utilized to communicate course and specifics to a group of individuals who are making something to explain how something works or how to construct something. Difference between Technical Drawing and Sketching or Freehand Drawing Technical Drawing signifies precise shape, measurements, and composition of an object with a view to its fabrication. It may be a framework of realistic representation of different sorts of objects or structures. Its purpose is to provide adequate data to encourage its design, development, and maintenance. It is more often than not done nowadays with the assistance of computerized media. They are ordinarily made on paper or other sorts of flat media. This sort of drawing is based on descriptive geometry and uses orthogonal projections to draw the different views of an object, plane, part, machine and others. Several views are ordinarily represented as top view, roof, floor, elevation, bounded and covered among others. Two projections of the object are required to supply valuable data around it, in spite of the fact that this will depend on its complexity. The technical drawing takes after internationally approved regulations to bind together the language used. Be that as it may, each nation has a body that normalizes the study and approval of the rules to follow. It incorporates sketches, outlines, charts, electrical, mechanical, structural and urban planning Sketching or Freehand Drawing conveys creative drawing that pass on thought, feeling, temperament or circumstances. It is about the discipline of drawing and portraying figures or unique shapes that represent a genuine or non-existent object. It may be a form of graphic expression. It has been utilized since ancient times as a language of universal characteristic that permits the transmission of data, depictions, ideas and feelings. Its purpose is aesthetic or to convey a thought or feeling. You can duplicate existing drawings or models to prepare observation and motor skills whereas other artists use their imagination. Therefore, Technical drawing may be a form of representation of objects that takes after a set of international standards while Sketching/Freehand Drawing is the free representation of feelings, activities and ideas.  Sketching/Freehand Drawing Technical Drawing While Sketching/Freehand Drawing could be a freehand drawing that focuses on capturing the essence instead of going into details, drawing could be a moderate and more careful expression that makes use of tools and uses colors as well. Sketching is done utilizing pencils and charcoal only. Technical Drawing is done utilizing pencils, colored pencils, pastel, markers, etc. In general, the biggest difference between sketch and technical drawing paper is that Sketch paper is intended for practicing, testing, and quick studies, while Technical drawing paper is intended for finished work of art. With drawing papers regularly being heavier, the artist is able to work on the sheet longer and refine work. This universal language changes small from one nation to another. Unlike spoken languages, it guarantees unequivocal understanding of the definition and development of technical objects. This implies that two engineers who don't talk the same language can understand most of a technical drawing, with the exemption of explanations written in a particular dialect. There are numerous sorts of technical drawings, including: 3D drawings (isometric, point of view) Exploded-view 3D drawings Complete working drawings Detail drawings (2D orthogonal projections) Diagrams are another form of technical drawing with looser, less widespread measures. Technical drawing is a fundamental instrument for young individuals learning about technology. They have to be learn the essentials through the tasks assigned to them. Basic Drawing Instruments and Their Uses These are wooden, and hexagonal cylinder which has clay called lead which is the stuff Drawing that you see when drawing something and it Pencils is one of the essential instruments for those who are in line with design or drawing. The leads are classified based on their hardness (H) or delicateness (B). An instrument that's utilized to clean or Eraser delete superfluous marks or redress off-base drawings. A semi-circular plastic device with prints of Protractor measures up to 180 degrees and usually utilized to degree points. It has two movable arms: one utilized to put Compass the center of the circle, and the other, which contains a lead, is utilized to form arcs or circles. These are two triangular layouts made of Squares plastic which are uses to create exact points and parallel or perpendicular lines. French These are utilized to draw curves to discover Curves the area of the curve that matches the shape of the figure. A plastic material with a number of exact circles cut out which utilized to draw circles Circle of determinate sizes and are useful Templates particularly in the event that the circle is small. Of course, you cannot draw something Paper without a surface to draw on, which is paper and it comes totally different sizes.  ACTIVITIES Activity No. 1 Let’s apply what we have learned. Accomplish the table below. Refer to the rubric scoring below on how you will be graded. Step 1 Step 2 Step 3 With the use of your Now, gather any available Compare the two pencil, draw any THING drawing instrument and drawings. that comes into your draw the same THING mind. Use the space you have on the first below. column. ________________________ ________________________ ________________________ ________________________ ________________________ ________________________ ________________________ ________________________ ________________________ ________________________ Rubric Scoring Basic Little or no Excellent Good Requirements effort 5 pts 4 pts 3 pts 2 pts Composition/Design The artwork is The artwork is The artwork The artwork planned planned shows little shows no Level of carefully; carefully; evidence of understanding understanding about understanding understanding understanding of the concepts of all concepts of most the concepts and instructions and and concepts and and instructions. concepts used in the instructions is instructions is instructions. activity. clearly demonstrated. demonstrated. Creativity/ The artwork The artwork The artwork The artwork Challenge demonstrates a demonstrates a demonstrates a demonstrates challenging satisfactory basic level of very little Inventiveness, level of level of attention to attention to production and production and production, production, expression of ideas creativity as creativity as creativity, and creativity, and and imagination well as well as logical problem solving problem solving portrayed in the outstanding skills. skills.  construction of problem solving problem solving activity. skills. skills. Behavior/Effort The student The student The student The student put forth put forth the put forth put forth Work ethic; the time extraordinary effort required limited effort minimal or no dedicated to the effort to to complete the required to effort; or the complete the project well; finish the project was not activity. project as well used class time project; use of completed; as possible; well. class time does class time was used class time not reflect the not used well. extremely well. students ability and potential. Activity No. 2 Locate the given words in the grid. These are words encountered from the lesson, running in possible directions; horizontally, vertically, or diagonally. DRAWING PENCILS ART COMPASS ISOMETRIC CURVES FREEHAND DRAFTER WRAP-UP Let us determine the Pros and Cons of Today’s lesson. Direction: Complete the chart by following the steps below. Step 1. Consider the Plus Points In this step, simply enumerate all of the positive things you can think of. Don’t critique yourself along the way, simply spill out all the positive points that you can think of. Step 2. Consider the Minus Points Enumerate all of the negative things you can think of. Again, don’t critique yourself. Simply spill out all the negative points you can think of. Step 3. Consider the Interesting Points of the Situation. Enumerate all the interesting points that you can think of. Rather than positive or negative, they are simply points of interest that you should direct your attention to. Step 4. Make your Conclusion Lastly, you make your judgement because you’ve scanned and organized three important aspects: the positives, the negatives, and the interesting. Plus Minus Interesting Conclusion:  VALUING “Creativity is contagious, pass it on” - Albert Einstein Explain the quotation briefly and write it on the space provided below. __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ POST-TEST Directions: From the pool of words below, choose the appropriate answer to the following descriptions. Write the answer on the space provided before the number. 2D Orthogonal projections Sketching/Freehand Drawing Squares Drawing Pencils 3D Drawings Technical Drawing ____________________________1. These are two triangular layouts made of plastic which are uses to create exact points and parallel or perpendicular lines. ____________________________2. It signifies precise shape, measurements, and composition of an object with a view to its fabrication. ____________________________3. It is called detailed drawing. ____________________________4. These are wooden, and hexagonal cylinder which has clay called lead which is the stuff that you see when drawing something and it is one of the essential instruments for those who are in line with design or drawing. ____________________________5. Its purpose is aesthetic, is to convey a thought or feeling.  KEY TO CORRECTION 5. Sketching/Freehand Drawing 4. Drawing Pencils 3. 2D orthogonal projections 2. Technical Drawing 1. Squares Post Test Activity #2 5. 8,192 5. D. Compass 4. 120 4. A. Eraser 3. 5,120 3. E. 3D Drawing 2. 2,048 2. F. Sketching 1. 20,480 1. C. Technical Drawing Recap Pre-Test References Wikipedia. “Technical Drawing” https://en.wikipedia.org/wiki/Technical_drawing (accessed June 28, 2020) centre de développement pédagogique. April 2005 http://cdpsciencetechno.org/cdp/UserFiles/File/telechargement/tec hnical_drawing.pdf (accessed June 28, 2020) iRubric: Drawing Assignment rubric https://www.rcampus.com/rubricshowc.cfm?code=T9382A&sp=true (accessed June 29, 2020) Maestro Valle Rey, October 9, 2019 https://philnews.ph/2019/10/09/what-are-the-drawing- instruments-and-their-uses/ (accessed June 28, 2020)