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How do we compute our business income?

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Show sample of computation of income from sales.

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Do you have appliances at home?

How does it function?

Where is it connected?

What electrical materials were used?

What kind of tools do we used in fixing those electrical materials?

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Look at the picture:

What are the importance of using tools and materials in making simple electrical gadget?

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Tools:

Materials:

Combination pliers

Side cutter pliers

Long-nose pliers

Tester

Screw drivers

Hammer

Electrical knife

Wire stripper

Soldering gun

Lamp receptacle

Convenience outlet

Male plug

Female plug

Flexible pipe

Plastic conduct pipe

G.I. conduct pipe

PVC connectors

C clamp

Plastic molding

Fluorescent lamp

Incandescent bulb

Starter

Ballast

Battery (Dry cell, wet cell)

Lamp holder

Electrical wires

Junction box

Utility box

Switch

Push Button

Nails

Screws

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Uses of Tools

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Combination Pliers

  • these are use to twist, cut, hold and pick electrical wire or tie wires.

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Side cutter Pliers

  • use to cut electrical wires or tie wires, also use in skinning small wires.

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Long Nose Pliers

  • use to hold, cut, twist or pick up small objects in a limited space.

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Tester

  • an instrument used to test if there is a flow of electricity in the connection a made.

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Screw Drivers

  • tools used in tightening and loosening screws. It has 2 kinds: flat and Philips.

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Wire stripper/splicer

  • use to take off a portion at the end of the wire before it is connected to terminals of other electrical materials.

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Soldering gun/iron

  • this is used to join two tiny metallic parts such as television and radio spare parts.

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Hammer

  • used to fasten nail through the wood, bamboo or concrete wall.

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Materials

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  1. What electrical tools I am going to use when I want to remove the plate of the convenience outlet or switch?

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2. I want to make an extension cord, what electrical materials I am going to buy?

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  1. What are the tools and materials needed in making simple electrical gadgets?

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2. What are the importance in using tools and materials in making electrical gadgets?

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Choose the correct answer inside the box.

Tester male plug

Combination pliers screw driver

Electrical wires holder

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Choose the correct answer inside the box.

_____1. An electrical tool which is used to twist or splice an electrical wire.

_____2. An instrument used to test if the gadget is functioning or there is a flow of electricity in the connection made?

_____3. A part of a lamp that holds the fluorescent tube.

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_____4. Tools used in tightening and loosening screws.

_____5. An electrical material which is used as a connector or path where electricity flows. It can be duplex, solid or stranded.

_____6 . It is used to connect to wire into the convenience outlet.

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List down the tools and materials used in making bulb tester.

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SUPPLEMENTARY ACTIVITIES

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ACTIVITY 1:

Direction: Arrange the jumbled letters that corresponds to the tools and materials and its use.

  1. R P I L E C N B M I A T O I
  2. W R S C E S E R I O R S
  3. G E S O N L O P R S L I E
  4. R E T E S T

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5. I R E W R T I S P E

6. G U L P E L A M

7. E E C R E P T A L C M P L A

  1. S I R E W L A L E C C T R E I
  2. A T R S R E T
  3. A L B A L T S

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ACTIVITY 2:

Direction: Draw the tools and materials in making electrical gadgets.

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