Basic Electricity - Senior Secondary 2 - Electrical appliance

Electrical appliance

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TERM: 3RD TERM

WEEK ELEVEN

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: ELECTRICAL APPLIANCE

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

  1. Identify the common maintenance tasks for household appliances
  2. Identify common faults in household 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 state and explain the common maintenance tasks for household appliances

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher describe common faults in household 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 APPLIANCE

Appliance maintenance involves regular upkeep and care to ensure household appliances operate efficiently and safely. The following are some common maintenance tasks for household appliances:

  1. Cleaning: Regularly clean appliance surfaces, filters, vents, and condenser coils to remove dust, dirt, and debris, which can hinder performance and efficiency.
  2. Inspecting and replacing parts: Check for signs of wear and tear on components such as seals, hoses, belts, and electrical cords. Replace any damaged or worn-out parts to prevent malfunctions or safety hazards.
  3. Lubricating moving parts: Apply lubricant to moving parts like motors, hinges, and bearings to reduce friction and prolong the lifespan of the appliance.
  4. Checking for leaks: Inspect appliances such as refrigerators, dishwashers, and washing machines for leaks or signs of water damage. Address any leaks promptly to prevent water damage to floors or surrounding areas.
  5. Calibrating settings: Ensure temperature, pressure, and other settings are calibrated correctly according to the manufacturer's instructions to optimize appliance performance and energy efficiency.

Common faults in household appliances

Some of the most common faults in household appliances include:

  1. No Power: If the appliance doesn't turn on, check the power source, circuit breaker, and power cord for any issues.
  2. Strange Noises: Unusual noises such as grinding, squealing, or banging may indicate a problem with moving parts, motor, or bearings.
  3. Leaks: Leaking water or other fluids from appliances like washing machines, dishwashers, or refrigerators can indicate problems with seals, hoses, or drainage systems.
  4. Poor Performance: Appliances that fail to operate as expected or produce subpar results may have issues with settings, components, or calibration.
  5. Overheating: Appliances that become excessively hot during operation can pose fire hazards and indicate problems with ventilation, cooling systems, or electrical components.

EVALUATION: 1. Mention 5 common maintenance tasks for household appliances

  1.   Identify 4 common faults in household appliances.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively