MINDANAO STATE UNIVERSITIY - ILIGAN INSTITUTE OF TECHNOLOGYA DETAILED LESSON PLAN IN TECHNOLOGY AND LIVELIHOOD EDUCATION

(Informative-Skill Demonstration)

COOPERATING TEACHER: Mr. Julius Seveses DATE: STUDENT INTERN: Eunice S. Habagat GRADE LEVEL: Grade 9

I. LEARNING COMPETENCIESAt the end of the class, students are expected to:A. Identify the different basic wire joints and splices.B. Understand the importance of joints and splices in electrical work.

II. LEARNING CONTENTA. Subject Matter: ElectricityB. Topic: Basic Splices and JointsC. References: Competency-Based Learning Material in Electricity , DepEd 2008, pp. 21-24D. Instructional Materials: Visual aids, Picture of Joints and SplicesE. Strategies: DiscussionF. Skills: SplicingG. Values: Appreciation, Patience, Hard work

III. LEARNING STRATEGIESTeacher’s Activity Students’ Activity

A. Preparatory Activitiesa) Prayer

Please stand up for our prayer. May I call on Ms. ______ to lead the prayer.

b) GreetingsGood afternoon class! How was your day?

Nice to hear that you’re doing good today.

Please pick up some pieces of paper under your desk and arrange your chairs properly. Thank you and you may now take your seat.

c) Checking of AttendanceLet me check your attendance first. Please sign your signature next to your name in the attendance sheet.

B. Collecting of AssignmentsLast meeting I have given you an assignment right? Please pass it forward at count of 5. 1,2,3,4,5! All papers in?

What was your assignment all about?

Yes, correct. Who can give me one example of splices and joints?Any other answer?

Very good class. You really did your assignment.

C. Review of Past LessonLet us have first a short review about our last lesson. Mr._____, what was our lesson all about?

What is a series circuit?

What about a parallel circuit?

Ms.______ leads the prayer.

Good afternoon maam. We’re good.

(Students are cooperating)

Students are cooperating.

(Students pass their assignments)Yes maam.

Our assignment is about the different wire splices and joints used in electrical work.

Rat tail splice.Plain Tap joint.

Our past lesson is about series and parallel circuits.

A series circuit is a circuit where there is only one path from the source through all of the loads and back to the source

A parallel circuit has more than one resistor or having

D. MotivationLet’s play a game. Our game is called “What song?” The class will be divided into four groups.

I have here a box with rolled papers in it. Written in these rolled papers are jumbled song titles. Arrange the words and sing out to class one line of the song for the group members to guess the answer. Are you ready class?

Let’s begin.

Let us give a hand to Group___ for winning this game activity.

Based from our game, what do you think would be our lesson for today?

E. Presentation of ObjectivesBut before that, let me introduce to you our objectives for today’s lesson. Everybody please read…

At the end of the class, you will be able to identify the different electrical joint and splices. You are also expected to understand the importance of the different joints and splices in electrical work.

F. Unlocking of Difficult TermsLet us first unlock some of the terms that we may encounter along our discussion.

G. Lesson Propera) Activity

Let’s have an activity. I have here pictures of electrical splices and joints posted in the board. I will give each student a corresponding number. When I call your number, you have to get a name of the splices and joints and match it with the pictures posted on the board. Every student have at most 50 seconds to answer.

Are you ready? Let’s begin.

b) AbstractionLet’s check your work.

Do you think the first picture is called Rat Tail? What about the second? Third? Are you sure?

How about the fourth picture? The fifth one?

Also the last picture?

c) DiscussionThese are the different splices and joints used in electrical wiring installation.

First we have Rat Tail splice, or also known as Pig Tail. Please read what is Rat Tail splice?

This type of splice is not strong mechanically. It is suitable for service where there is no mechanical stress when wires are to be connected in an outlet box, switch, or conduit fitting.

What about the second picture? It is called Y-splice. Everybody

a multiple paths to move along the electricity.

Yes, maam.

Our lesson for today is about the electrical joints and splices.

At the end of the class, you will be able to identify the different electrical joint and splices. Also, understand the importance of electrical joints and splices in electrical work.

Enclosure- an area surrounded by a wall or closed space.

Conductor- a material that allows electricity to move through it.

.

Yes, maam.

We’re not sure maam. No, maam.

No, maam.

Rat Tail splice is kind of splice commonly used to join two or more conductors inside the junction box.

This method of wrapping is generally used or small

please read the definition..

This splice is mostly used to connect three electrical or component cables.

Next, we have Fixture Joint. Please read.

Like the rat tail joint, the fixture joint will not stand much strain.

Then, we also have Western Union Splices. There two types of Western Union Splice, what are those?

Yes, correct. What is a Western Union Short Tie?

What about Western Union Long Tie splice?

What do you think is the difference between the two? Who can answer?

Yes, correct. Next, we have Plain Tap or also known as Tee Joint. What is a Plain Tap?

This is used where the tap wire is under considerable tensile stress circuit.

d) AnalysisWhy do we need to know the different electrical splices and joints?

e) ApplicationI will show you some pictures of splice and joints and everybody must identify the name it. Are we clear?

H. GeneralizationWhat are the different electrical wire splices and joints that we have discussed today?

cables because the strands are flexible and all can be wrapped in one operation.

An electric connection between two conductors, formed by crossing their bare ends, wrapping one end around the other, and then folding them over.

Western Union Short Tie and Western Union Long Tie.

This is the most widely used splice or joint in interior wiring installation to extend the length of wire from one point to another.

This is used extensively for outside wiring to extend the length of wire from one end to another.

The difference between Western Union Short Tie and Long Tie is that short tie has shorter number of twists and used for interior wiring while long tie have many number of twits because it is used for outside wiring.

This splice is used in outside work for joining a tap wire through a conductor.

As a student in Electricity, it is important to acquire the important knowledge and skills in wire splices and joints and should be familiar with the actual application of every splice and joint because this will serve as our tool in performing actual wiring installation.

Yes, maam.

Rat Tail splice, Y-splice, Fixture Joint, Western Union Short Tie, Western Union Long Tie, Plain Tap

IV. EVALUATIONDirection: Match the following questions in column A to the column B.

Answer Column A Column B

_______1. A kind of splice commonly used to join two or more conductors inside the

junction box.a. Western Union Short

Tie

_______

2. This method of wrapping is generally used or small cables because the strands are flexible and all can be wrapped in one operation.

b. Rat Tail

_______3. This is used extensively for outside wiring to extend the length of wire from

one end to another.c. Western Union Long Tie

_______4. This is mostly used in outside work for joining a tap wire through a

conductor.d. Plain Tap

_______

5. This is the most widely used splice or joint in interior wiring installation to extend the length of wire from one point to another.

e. Y-splice

_______6. This is used where fixture leads are connected to branch wire at an

immediate point.f. Fixture Joint

V. ASSIGNMENTNote: Refer your answer in page 24 of the Competency-Based Learning Material in Electricity,.In a ¼ sheet of paper, answer the following:

1. Identify the steps in making Western Union Short Tie splice?