Cot lesson plan
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This lesson plan outlines how to teach students about wiring two three-way switches to control a single light bulb. The objectives are to define three-way switches, describe their operating principles, demonstrate how to wire two three-way switches, and appreciate their usefulness. The procedures include introducing three-way switches, discussing their operation, demonstrating the wiring, having students practice, and evaluating their ability to wire the switches within 5 minutes. Materials needed are power supply, switches, wires, receptacle, bulb, and tools.
Cot lesson plan
- 1. COT LESSON PLAN Name : Richard Gordo Perelonia Date : February 24, 2021 Level : Grade 9 Subject: Circuit using Two 3-Way Switches TLE_IAEI12EL-Ia-IIj-1 (EIMNCII) Topic : Wiring Three-Way Switches I. OBJECTIVES 1. Define three-way switch; 2 Describe its operating principles; 3. Wire two three-way switches controlling a single light bulb; and 4. Appreciate the usefulness of a three-way switch. II. Materials Power Supply (230volts) 2 sets of three-way switches PDX cable coded (black & white) THHN wires Receptacle and bulb Laptop and Projector Tools Multi-tester Combination plier Side cutting plier Standard screw driver III. Procedures A. Introduction 1. Prayer 2. Greetings 3. Checking of Attendance 4. Review of Previous Lesson o Review single-pole, single-throw switch (SPST) 5. Motivation o Ask the students if it is possible to control a light bulb with two switches in different locations. 6. Valuing o Three-way switches play an important role in house wiring installation specially in terms of convenience of shutting ON and OFF a light bulb inside the building. B. Discussion proper What are three-way switches? o Three-way switches are used to control a light bulb in different locations. o Electrically, a typical three-way switch is a single-pole, double-throw switch. o Three-way switches have tree terminals: one common and one pair of travelers. How does a three-way switch operate? o Toggling two three-way switches will cause a closed path to open, or an open path to close. C. Activity Demonstrate the technique in wiring two three-way switch controlling a light bulb. Steps in Wiring Two Three-way Switches: 1. Connect the common wire of three-way switch S3 W1 to the source L1.
- 2. 2. Connect the pair of travelers of three-way switch S3 W1 to the pair of travelers of three-way switch S3 W2. 3. Connect the common wire of S3 W2 to the first terminal T1 of the light bulb. 4. Connect wire from wire the second terminal T2 of the light bulb to the source L2. 5. Review the connections before energizing. D. Application As a form of practice, a pair of students will be required to perform the wiring connection. E. Abstraction The wiring of a three-way switch is certainly more complicated than that of a common single-pole, single-throw switch, but you can figure it out if you follow the diagram. With a pair of three-way switches, either switch can make or break the connection that completes the circuits to the light bulb. IV. Evaluation/Assessment Each student will perform individually the wiring connection of two three-way switches controlling a light bulb within 5 minutes observing the criteria below. Assessment Criteria Criteria 5 4 3 2 1 Speed Able to perform within the time limit Able to perform 1 minute more than the time limit Able to perform 2 minutes more than the time limit Able to perform 3 minutes more than the time limit Able to perform 4 minutes more than the time limit V. Assignment In a short bond paper, answer the following: 1. What is four-way Switch? 2. Describe the Operating Principles. VI. Reference TLE – IA- EIM K to 12 Curriculum Guide G9-EIM Learner’s Manual Practical for Daily Use, pp. 48-55 Prepared by: RICHARD G. PERELONIA SHS TVL T1