Lesson Plan. Preparation

Transcription

1 Course Title Electronics Session Title Hand Tools Lesson Plan Performance Objectives Upon completion of this assignment, the student will be able to identify basic hand tools and list maintenance procedures for tools. The student should be able to clean and lubricate pliers and adjust wire strippers. This knowledge will be evidenced by correctly performing the procedures outlined on the lab activity sheets and by scoring 85 percent on the exams. Specific Objectives Identify basic hand tools Match tools to their uses List factors to consider when selecting tools List maintenance procedures for tools Demonstrate the ability to: o clean and lubricate pliers and o adjust wire strippers. Preparation TEKS Correlations This lesson, as published, correlates to the following TEKS. Any changes/alterations to the activities may result in the elimination of any or all of the TEKS listed. Electronics (c) o (1) The student demonstrates the skills necessary for success in the workplace. The student is expected to: (C) demonstrate the principles of teamwork related to engineering and technology; and (G) demonstrate respect for diversity in the workplace (c) o (2) The student participates in team projects in various roles. The student is expected to: (B) solve problems as part of a team; 1

2 (C) demonstrate proper attitudes as a team leader; and (D) demonstrate proper attitudes as a team member (c) o (3) The student develops skills for managing a project. The student is expected to: (B) complete work according to established criteria; and (C) participate in the organization and operation of a real or simulated engineering project (c) o (4) The student practices safe and proper work habits. The student is expected to: (A) master relevant safety tests; (B) follow safety guidelines as described in various manuals, instructions, and regulations; (C) identify and classify hazardous materials and wastes according to Occupational Safety and Health Administration regulations and industry standards; (D) dispose of hazardous materials and wastes appropriately; (E) perform maintenance on selected tools, equipment, and machines; (F) handle and store tools and materials correctly; and (G) describe the results of negligent or improper maintenance (c) o (8) The student learns the function and application of the tools, equipment, and materials used in electronics through project-based assignments. The student is expected to: (A) safely use tools and laboratory equipment to construct and repair circuits; and (B) use precision measuring instruments to analyze circuits and prototypes. Interdisciplinary Correlations English Language Arts and Reading, English II (b) o (1) Reading/Vocabulary Development. Students understand new vocabulary and use it when reading and writing. 2

3 Occupational Correlation (O*Net Job Title Electronics Engineering Technicians O*Net Number Similar Job Titles Electronics Technician, Engineering Technician, Electronics Engineering Technician, Test Technician, Technician, Refurbish Technician (Refurb Tech), Electrical Technician, Electronics Test Technician, Engineering Aide, Failure Analysis Technician (FA Technician) Tasks Read blueprints, wiring diagrams, schematic drawings, or engineering instructions for assembling electronics units, and applying knowledge of electronic theory and components. Test electronics units using standard test equipment and analyze results to evaluate performance and determine need for adjustment. Perform preventative maintenance or calibration of equipment or systems. Assemble, test, or maintain circuitry or electronic components according to engineering instructions, technical manuals, or knowledge of electronics, using hand or power tools. Adjust or replace defective or improperly functioning circuitry or electronics components, using hand tools or soldering iron. Write reports or record data on testing techniques, laboratory equipment, or specifications to assist engineers. Identify and resolve equipment malfunctions, working with manufacturers or field representatives as necessary to procure replacement parts. Maintain system logs or manuals to document testing or operation of equipment. Provide user applications or engineering support or recommendations for new or existing equipment with regard to installation, upgrades, or enhancements. Provide customer support and education working with users to identify needs, determine sources of problems, or to provide information on product use. Soft Skills Dependability Cooperation Attention to Detail Initiative Integrity Adaptability Flexibility 3

4 References Buchla, D., & Floyd, T. (2005). The science of Electronics DC/AC (chapter 4). Upper Saddle River, NJ: Prentice Hall. Floyd, T. (1993). Principles of electric circuits: Electron flow version, Don Mills, Ontario: Macmillan Publishing Co. Robertson, L. (1980). Basics Electronics I. Stillwater, OK: Mid-American Vocational Curriculum Consortium, Inc. Instructional Aids Hand Tools for Electronic Technicians slide presentation and notes Hand Tools Lab #1 - Clean and Lubricate Pliers handout Hand Tools Lab #2 - Adjust Wire Strippers handout Hand Tools Exam I Hand Tools Exam I Answer Key Hand Tools Exam II Hand Tools Exam II Answer Key Materials Needed Pencil and paper Assortment of tools Cleaning material Lubricant Equipment Needed Computer and software Projector and screen Whiteboard Breadboards and leads Power supplies Multimeters Calculator Learner Preparation The teacher may want to have students preview the Hand Tools for Electronic Technicians slide presentation and take notes on the material. 4

5 Introduction Introduction (LSI Quadrant I) Say Electronic technicians and people with related occupations need to know the tools of their trade. Ask Do you know all the tools of the trade for people working in the electronics field? Say Proper maintenance and use of each tool will prolong its life and save the technician some money if they have to replace lost or damaged tools. Let s see what the tools of the trade are. Outline Instructors can use the slide presentation, notes, and handouts in conjunction with the following outline. Outline (LSI Quadrant II) Teacher Notes I. Overview A. Tool hazards B. Tool use responsibilities Slides 1-4 The teacher will begin the Hand Tools for Electronic Technicians slide presentation. II. Types of tools and their uses A. Pliers Long nose pliers Diagonal side cutting pliers B. Screwdrivers Lineman s side cutting pliers Combination slip joint pliers Flat head screwdriver Phillips head screwdriver C. Saws Hacksaw Keyhole saw D. 6-in-1 tool E. Adjustable wire strippers Slides 5-14 The teacher discusses tools and their uses from the slide presentation. Make sure to review the tools and their uses that are covered in Exam I and Exam II. Examples used are typical for a lab. Your lab may or may not have these specific tools. You may substitute tools you have for tools in the presentation that your lab 5

6 F. Wrenches Crescent wrench Hex wrench Socket wrench G. Claw hammer H. Nut driver I. Wire gauge J. Hemostat clamps K. Drill and drill bits L. Ball peen hammer M. Flat files N. Punches does not have. III. Digital multimeter A. Uses and safety B. Tests Voltage test Resistance test Current test Slides The teacher should search the Internet and other resources for information on multimeter safety. IV. Factors to consider when selecting tools A. Size B. Quality C. Design D. Specifications Slide 19 The teacher discusses factors to consider when selecting tools. V. Tool maintenance and safety A. Screwdrivers B. Pliers C. Adjustable wrenches D. All tools Slides VI. Summary Slide 22 VII. Teacher demonstrations A. Clean and adjust tools B. Lubricate tools The teacher will distribute Hand Tools Lab #1 handout and Hand Tools Lab #2 6

7 C. Inspect tools D. Discard malfunctioned tools handout to each student. The teacher will demonstrate how to clean and lubricate pliers (Lab #1) and adjust wire strippers (Lab #2). The students will replicate the activities in Lab #1 and Lab #2 handouts. Application Guided Practice (LSI Quadrant III) The students will observe, ask questions, and analyze the demonstration to be presented by the teacher. The teacher will use materials as listed in the lab activities to instruct students how to maintain hand tools. Independent Practice (LSI Quadrant III) The students will replicate the lab activities. Summary Review (LSI Quadrants I and IV) Ask (as you hold up various tools) What is the name and function of this tool? Ask What are four factors that need to be considered when selecting a tool? Ask What is the maintenance procedure for each of the following tools? Screwdrivers Pliers Adjustable wrenches All tools Evaluation Informal Assessment (LSI Quadrant III) The teacher will monitor each student or small group as they individually work to complete the Lab #1 and Lab #2 assignments. 7

8 Formal Assessment (LSI Quadrant III, IV) 1. The students will be assessed by participation in and completion of the lab activities. 2. The students will be assessed by taking the hand tools exams. Extension Extension/Enrichment (LSI Quadrant IV) In small groups, students may discuss the following topics. Knowing electricians' tools and their uses is a vital part of the industry and skills development. Thinking through a problem to arrive at the answer and the persistency to work past your frustrations tempers your character. There are points in the lab experience where a student may use leadership skills. Leading or following creates a sense of accomplishment that adds to the character of those students involved. Cognitive and leadership skills or development go hand and hand in surviving life s road. 8

9 Name Class: Date: / / Hand Tools Lab #1 Clean and Lubricate Pliers Equipment and Materials Pliers Solvent Oil Solvent tray or equivalent Procedure: 1. Lay pliers in tray 2. Pour solvent into tray until pliers are submersed Note: If pliers have cushion grips, immerse only the head. 3. Open and close pliers several times while submersed 4. Let pliers set for three to four minutes in the solvent 5. Remove from solvent 6. Open and close rapidly until pliers work freely Note: If pliers do not work freely, repeat Steps 1 through Wipe residue from pliers joint with a cloth or paper towel 8. Apply two or three drops of oil to joints of the pliers 9. Work the pliers until the oil has penetrated the joint 10. Wipe excess oil from pliers 9

10 Name Class: Date: / / Hand Tools Lab #2 Adjust Wire Strippers Equipment and Materials Adjustable wire strippers Variety of solid insulated conductors Screwdriver or nut driver to fit adjustment screw Procedure 1. Loosen adjustment screw (Figure 1) 2. Insert conductor into stripping slot 3. Close jaws until you feel that you have reached the conductor 4. Open jaws slightly 5. Slide adjustment screw down to its setting position (Figure 2) 10

11 Hand Tools Lab #2 Adjust Wire Strippers (continued) 6. Strip off approximately 3/8-inch of insulation 7. Check conductor for ring or nick (Figure 3) Note: If nicks occurred, loosen adjustment screw, readjust, and test again until insulation is removed without conductor damage. 11

12 Name Class: Date: / / Hand Tools Exam 1 I. Match the term to the correct definition 1. Hacksaw A Gripping, holding, or turning a range of small to medium size nuts and bolts 2. Hex and Allen B Cutting wire and component leads; wrench stripping insulation from wire 3. Keyhole saw C Tightening or loosening socket cap screws; tightening or loosening set screws 4. Diagonal cutting D Cutting chassis metal; cutting bolts or pliers metal parts 5. Nut driver E Cutting openings in drywall for electrical outlets II. Match the hand tool with its description 6. Lineman s side A Loosening small to medium size nuts and cutting pliers bolts: holding and turning 7. Long nose pliers B Removing or tightening screws or bolts (flat head or Phillips head) 8. Combination slip C Crimp, cut, strip, shear, thread, and joint pliers length gauges for stripping 9. 6-in-1 tool D Holding components; heat sink; shaping and forming small conductors 10. Screwdriver E Cutting heavier conductors and cables; cutting small screws: forming large conductors 12

13 Hand Tools Exam 1 Answer Key I. Match the term to the correct definition 1. Hacksaw D A Gripping, holding, or turning a range of small to medium size nuts and bolts 2. Hex and Allen C B Cutting wire and component leads; wrench stripping insulation from wire 3. Keyhole saw E C Tightening or loosening socket cap screws; tightening or loosening set screws 4. Diagonal cutting B D Cutting chassis metal; cutting bolts or pliers metal parts 5. Nut driver A E Cutting openings in drywall for electrical outlets II. Match the hand tool with its description 6. Lineman s side E A Loosening small to medium size nuts and cutting pliers bolts: holding and turning 7. Long nose pliers D B Removing or tightening screws or bolts (flat head or Phillips head) 8. Combination slip A C Crimp, cut, strip, shear, thread, and joint pliers length gauges for stripping 9. 6-in-1 tool C D Holding components; heat sink; shaping and forming small conductors 10. Screwdriver B E Cutting heavier conductors and cables; cutting small screws: forming large conductors 13

14 Name Class: Date: / / Hand Tools Exam 2 Note: Please write responses on this sheet. 1. List three factors that should be considered when selecting tools. (2pts each) List maintenance procedures for the following tools: (2pts each) A. Screwdrivers B. Pliers C. Adjustable wrenches D. All tools 3. Identify the hand tools labeled and displayed by the teacher (spelling counts). A. B. C. D. E. 14

15 Name Class: Date: / / Hand Tools Exam 2 (continued) F. G. H. I. J. K. L. M. N. O. P. Q. R. S. T. U. V. W. X. Y. Z. 15

16 Hand Tools Exam 2 Answer Key NOTE: Please write responses on this sheet. 1. List three factors that should be considered when selecting tools. (2pts each) Teacher s Note Student may provide any three of the following: 1. Tool size should be matched to the work most frequently encountered 2. Purchasing quality tools is less expensive in the long run 3. Tools should be specifically designed for electronic use whenever possible: o Should have insulation on handles of pliers o Should have insulation on handles of screwdrivers 4. Know the specifications before purchasing a tool 2. List maintenance procedures for the following tools. (2pts each) A. Screwdrivers B. Pliers 1. Regrind worn or damaged flat blade screwdrivers 2. Discard damaged Phillips screwdrivers 1. Keep pliers clean and rust free 2. Keep cutting edges sharp and smooth 3. Keep pliers working freely 4. Repair or replace damaged handle insulation C. Adjustable wrenches- Keep worm gears clean and lubricated D. All tools- Identify tools by labeling with electric vibrator pen or scratch awl 3. Identify the hand tools labeled and displayed by the teacher (spelling counts). Teacher s Note The following tools are the recommended tools and sequence. Add or delete hand tools according to what is available in the shop. A. Long nose pliers B. Diagonal cutting pliers C. Linesman s side cutting pliers 16

17 Hand Tools Exam 2 Answer Key (continued) D. Combination slip joint pliers E. Flat blade (slot head) screwdriver F. Phillips head (cross point) screwdriver G. Hacksaw H. Keyhole saw I. Adjustable wire strippers J. 6-in-1 tool K. Crescent wrench (adjustable) L. Hex or Allen wrenches M. Nut driver N. Drill and drill bits O. Ball peen hammer P. Flat file Q. Half round file R. Hemostat clamp S. Wire gauge T. Precision files U. Center punch V. Square hole punch W. Round hole punch X. Socket wrench Y. Claw hammer Z. Multimeter 17