Basic Electricity - Senior Secondary 2 - Hand tools and testing instruments

TERM: 2^ND TERM

WEEK NINE

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: HAND TOOLS AND TESTING INSTRUMENTS

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

I.) Define hand tools

II.) Give examples of hand tools

III.) State the uses of hand tools

IV.) Define testing instruments

V.) Identify types of testing instruments

VI.) State the uses of testing instruments

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 explains the meaning of hand tools, identify it's types and state the uses of hand tools	Students listens attentively to the teacher
STEP 2 EXPLANATION	Teacher explains the meaning of testing instruments, identify the types and state the uses of testing instruments	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

HAND TOOLS AND TESTING INSTRUMENTS

Hand tools in basic electricity refer to manual tools used for various tasks in electrical work, such as installation, maintenance, and repair. Examples of hand tools:

I.) Screwdrivers: Used for driving screws into or out of electrical equipment and fixtures.

II.) Pliers: Used for gripping, bending, and cutting wires and cables.

III.) Wire Strippers: Used for removing insulation from wires to expose the conductor.

IV.) Wire Cutters: Used for cutting wires and cables to desired lengths.

V.) Wrenches: Used for tightening or loosening nuts and bolts on electrical connections.

VI.) Crimping Tools: Used for crimping terminals onto the ends of wires.

Uses of Hand Tools

I.) Hand tools are used for installing, maintaining, and repairing electrical systems, components, and equipment.

II.) They are essential for tasks such as wiring, terminating connections, adjusting components, and troubleshooting electrical problems.

Testing Instruments

Testing instruments are devices used to measure, test, and diagnose electrical parameters, circuits, and components.

Types of Testing Instruments

I.) Multimeter: Measures voltage, current, resistance, and sometimes other parameters like capacitance and frequency.

II.) Clamp Meter: Measures current by clamping around a conductor without the need for physical contact.

III.) Continuity Tester: Checks for the continuity of a circuit by indicating whether a path exists for current flow.

IV.) Voltage Tester: Determines the presence or absence of voltage in a circuit or at a specific point.

V.) Insulation Tester: Measures the resistance of insulation to detect faults or breakdowns in electrical insulation.

Uses of Testing Instruments

I.) Testing instruments are used to verify proper functioning, diagnose faults, and measure electrical parameters in circuits and equipment.

II.) They help ensure electrical safety by detecting faults such as short circuits, open circuits, insulation breakdowns, and improper voltage levels.

III.) Testing instruments are essential for troubleshooting electrical problems, commissioning new installations, and conducting routine maintenance checks in electrical systems and equipment.

EVALUATION: 1. Define testing instruments

State 3 uses of testing instruments
What are hand tools?
Mention 5 examples of hand tools

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively