Basic Electricity - Senior Secondary 3 - Electrical appliances

Electrical appliances

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TERM: 2ND TERM

WEEK ONE

Class: Senior Secondary School 3

Age: 17 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: ELECTRICAL APPLIANCES

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Identify the methods of proper handling of electrical appliances

II.) Identify the steps to troubleshoot faulty electrical appliances

III.) Identify simple repairs for electrical appliances

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher identify and explain the methods of proper handling of electrical appliances

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher explains the steps to troubleshoot faulty electrical appliances.

Teacher outline some simple repairs for electrical appliances

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

ELECTRICAL APPLIANCES

Methods of proper handling of electrical appliances

  1. Read the Manual: Familiarize yourself with the manufacturer's instructions for safe operation and maintenance.
  2. Unplug When Not in Use: Disconnect appliances from power sources when not in use to prevent electrical hazards.
  3. Avoid Overloading Circuits: Do not plug too many appliances into a single outlet or circuit to prevent overheating and fires.
  4. Keep Away from Water: Do not operate electrical appliances near water sources to avoid electrical shock.
  5. Regular Maintenance: Clean appliances regularly and inspect cords and plugs for damage.
  6. Use Properly: Follow correct procedures for using appliances, such as not using metal utensils in microwave ovens.

Steps to troubleshoot faulty electrical appliances

  1. Check Power Supply: Ensure the appliance is properly plugged in and the power source is functioning.
  2. Inspect Cords and Plugs: Look for fraying, damage, or loose connections in the cords and plugs.
  3. Test with Another Outlet: Plug the appliance into a different outlet to check if the problem is with the outlet.
  4. Check for Tripped Breakers: Reset any tripped circuit breakers or replace blown fuses.
  5. Examine for Damage: Inspect the appliance for visible damage, burnt components, or unusual smells.
  6. Consult Manual: Refer to the appliance manual for troubleshooting tips specific to the model.

Simple repairs for electrical appliances

  1. Replace Fuses or Circuit Breakers: If the appliance has blown fuses or tripped breakers, replace them with new ones of the correct rating.
  2. Tighten Loose Connections: Secure any loose wires or connections inside the appliance.
  3. Clean Components: Remove dust and debris from vents, filters, and other components to improve performance.
  4. Replace Damaged Parts: Replace damaged cords, plugs, switches, or other components with new ones.
  5. Lubricate Moving Parts: Apply lubricant to moving parts such as fan blades or motor shafts to reduce friction and noise.

EVALUATION: 1.  Identify 5 methods of proper handling of electrical appliances

  1. Identify all the steps to troubleshoot faulty electrical appliances
  2. Mention 4 simple repairs for electrical appliances

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively