Republic of the Philippines Department of Education LEARNING ACTIVITY SHEETS Address: J. Rosales Avenue, Butuan City 8600 Telephone No.: (085) 300-7006 Email add: [email protected] WEEKLY LEARNING ACTIVITY SHEET Name of Learner : Year & Section : Name of Teacher : Date Received : Date Submitted : Learning Area : Technical Drafting Grade Level: 7 Quarter: FIRST Month:October Title of the Activity: Hand Tools In Technical Drafting Objectives: At the end of the lesson you are expected to: *Define what is technical drafting *Enumerate the different hand tools in drafting *Classify hand tools and equipment according to its function Materials: Hand Outs Procedure: Answer Pre-Test, Read and Understand the Lesson, Answer Activity Sheets, Anwer Post- Test Pre-Test I. Multiple Choice Directions: Read and answer the questions below. Choose the drafting materials, tools and instruments applicable to a particular job. 1. It is a tool used to draw vertical lines and more convenient when used with T-square. A. Eraser B. Compass C. Erasing shield D. Triangle 2. It is to shield the remainder of the drawing whenever you are erasing smudges and/or unwanted pencil lines. A. Ruler B. Compass C. Erasing shield D. Drawing pencil 3. A drafting material used to secure the drawing paper on the table or on a board. A. Eraser B. T-square C. Ruler D. Masking tape 4. This is a tool typically used in reproducing a drawing to enlarge or reduce its form to some regular proportion. A. Triangular scales B. T-square C. Ruler D. Masking tape 5. It is a semi-circular instrument divided into 180-degree equal components. A. T-square B. Protractor C. Compass D. Ruler LET’S STUDY Drafting is a form of communication that is technical and requires accuracy and consistency. Technical drafting keep lines, symbols, and details as drawings are presented with exact proportions. It allows you to see how the object will look once it has been assembled. This is why drafting is the universal language of industry. Drafting is said to be the universal language of engineers because they can read and understand it. Drafting tools are essential for drafters because it is used for layouts and provide accurate measurement of a certain line, shape, or object. Basic tools such as pencil, paper, and ruler are one of the important tools to start your drawing. Additionally, you will also need measuring instruments such as rulers, triangles, protractors or compass for correct and consistent measurements. Drafter use wide variety of drawing tools to show exact measurements to draw proper proportions which are very critical. Activity 1: Recall Direction: Name the Different Drawing tools shown below DRAFTIHG MATERIALS AHD TDOLS, ITS U SE S/FUHCTIDH S PIN I UNI-/ILLU 5 I EA I UN MI- 5L rtlr' IUN Drawing Paper There are varieties of drawing papers available in the market. Hard and soft surface drawing papers are extremely suggested to be the most effective. This sort of papers does not hollow easily when pressure is applied to the pencil. Oslo paper is usually used however you can use bond paper as it is also suggested. Ma shiFI g Id {g‹2 This is used for fastening the paper on the work table as a result it will keep the paper steady so it is easier to move the tools around while drawing. Pencil sharpener Pencils ought to be sharpened whenever they show sign of dullness. There are different kinds and styles available in the market you ” " - ' ” ' can purchase. Eraser It cleans the dirt off the drawing. A soft ones are advantageous in removing smudges and pencil marks. whereas. a solid eraser is beneficial for creating changes and correcting - -› - • -° ‹• •.“ - " -“ errors within the drawing. Rubr Ruler is the preferred measuringt00l especialg f0r beginners. Most rulers are 6 0f 12 inches * "*“ '“”" “ ”” "* long. It is required when drawing sizes and distances. Activity 2: Crossword puzzle Directions: Complete the crossword by filling in a word that fits each clue Activity #3: Draw to complete Directions: Complete the table below by drawing the tools and equipment used in drafting. An example is given for your guidance Lesson Equipment in Technical 2 Drafting What’s In We have learned in Lesson 1 about the different materials and hand tools use in drafting. These are the most basic hand tools but essential in technical drafting. Activity 1: Recall Directions: Read each statement carefully. Identify what tool or drafting material is being described. 1. It is a material use to draw on by a pencil or pen. 2. Pencils ought to be sharpened whenever they show sign of dullness. 3. This is a tool typically used in reproducing a drawing to enlarge or reduce its form to some regular proportion. 4. This is used for fastening the paper on the work table as a result it will keep the paper steady so it is easier to move the tools around while drawing. 5. It cleans the dirt off the drawing. What’s New Activity 2: Drafting Equipments Directions: Name the different drawing tools and equipment shown below. No. Drawing Tools/Instruments No. Drawing Tools/Instruments 1. 2. 3. 4. 5. What Is It DRAWING EQUIPMENT These are variety of equipment employed in drafting. It is essential for drafters to accurately draw objects, lines and curves with precise dimension. Measurements should be uniform so individuals have common understanding and application within the production and use of constructed objects. PICTURE/ILLUSTRATION DESCRIPTION T-Square Drawing equipment used to draw horizontal lines. Additionally, it can be used for guiding triangles in drawing vertical lines. It is made from wood, plastic or the mix of each. Types of T-square: Fixed Head - the top is mounted to the blade. This type of t-square is used for normal work. Movable Head or Adjustable Head - the top is adjustable and used just for occasional drawing. Detachable Head or Removable Head - designed for comfort in carrying the drafting instrument. PICTURE/ILLUSTRATION DESCRIPTION Triangle A three-sided ruler that has usually two equal sides with a 90 degree angle and its third side is at 30, 45, or 60 degree angle. Made of plastic and comes in numerous sizes. If in use, the bottom of the Triangle should rest on the T-square's blade. Drawing vertical lines should start from the bottom going upward. Commonly used triangles are: a) 30x60 degrees b) 45x45 degrees Compass Drawing arcs and circles is easier to draw when using this equipment. It is identical to a divider; however compass has a pen leg and a needle point on another leg bind with a handle. This drawing instrument is used for pencilling and inking. Divider Drawing equipment used to transfer measurements, dividing lines and arcs into the specified range of equal components. It simply transfers correct measurements by adjusting the divider points. Constant practice is critical before doing an actual and final drawing so that you can use it with ease. Protractor It is a semi-circular instrument divided into 180-degree equal components. It determines the gradations of the degrees in calculating arcs, angles and circles. Prime quality of protractors is typically made from plastic. What’s More Activity 3: Word Search Directions: There are ten (10) different drafting tools and drawing equipment that can be found in the puzzle. An example is given for your guidance. B Y A T T S W C C U E U Y S Q D E O P R V H P R O T R A C T O R O P M R V X W A M Q A U L V E A B H I B A N B W P A S J A Y L W U T L U K R E V A D E N I P C I M Y H V W Z E A S Q R U V U S N U U P P X M B T S P G Y L Y S G T S C I J A Q S T R S L E I I P Y S E R A S I N G S H I E L D A E H K R C K B O Y P P Y P A E P D A Z T R I Y E N L E L C K Q E A R L T I N L G H D I V I D E R Y P E Y O G B I Z B Z C B D Z B G E H T N T I W O W O N N M M R F N D A C A K O D S T Q Y E I L Q E I J E P A W A Y T Q U L P B A R E Y J E K P B A B Y N T R E T M T E Z U U E T M A N N A R I S S B U R E B R B I F R I E D B S S I Y R Q U R Y E B P R B A R What I Have Learned Activity 4: Generalization Directions: Answer the following questions. Write your answers on a separate sheet of paper. 1. What is the purpose of technical drafting? 2. Why is drafting equipment important? What I Can Do Activity 5: Word Tiles Directions: Rearrange the letter to create a word that best describes each of the given statements below.