4s lesson plan

1. A Detailedlessonplaninautomotive
I. OBJECTIVES
1. Identifyanddiscussthe purpose andoperationof coolingsystem.
2. Appreciate the significanceof engine coolingsystem.
3. Applythe basicparts of coolingsystemlearnedinengine.
II. SUBJECT MATTER
Topic:engine coolingsystem
Materials:visual aids,pictures,video.
References:automotive mechanic,crouse-anglin,pp.315.
III. PROCEDURE
TEACHERS ACTIVITIES STUDENTSACTIVITIES
Good morningeveryone! Good morningsir!
What was ourlessonlastmeeting? Sir it’sall about lubricatingsystem.
Didyou understandthe pastlesson? Okay verygood!
2. MOTIVATION
Teacher’sactivities Studentsactivities
Showa picture of engine
What picturesdoyou see onthe board? Sir itis an engine.
Verygood!

2. Teacher’sactivities student’sactivities
How doesan engine work?
Yes studentA. Sir an engine worksthroughusing
a gasoline ordiesel.
Yes correct!
Why an engine doesn’tgetoverheated?
YesstudentB. Sir,basedon whatI see on the
boat and automobile,some of them
useswaterandevena purifiedwater
to maintainthe temperature of
engine.
Correct!
B. PRESENTATION
Teacher’sactivities student’sactivities
Today,we are goingto discussedaboutan
“engine coolingsystem”.
But before we are goingto discussed,
we will have anactivityfirst.Postedonthe board
isa” wordsearch puzzle”.Whatyouare goingto do
isto findwordsliston the right.The wordsmay appear
horizontally,vertically,diagonally(backward/upward)
Whenyou findthe words,circle iton the puzzle,thencrossit
off on the list.
I will call five studentstodothe jobor activity.
Upon completionof the wordsearchpuzzle,participants
will be call tosay somethingorexplainthe wordstheyhave encircled,
basedon whattheyunderstand.

3. X S F A N L M P R V X Y
W A T E R P U M P N X O
A O V H H I S K B J A P
T U O K E N T D C K P L
E Z E R O R O L F N L N
R N Q I S T M Q J P M F
J E L B W X Q O H Q N R
A K K A E O Z N S W Y S
C E L B W Y S J T T P K
K A D R S T U N L A A L
E T A B I E O N O B I T
T Q R T S N N V P K M K
S T S K A T Q W Q L D J
R A D I A T O R V M A O
4. ANALYSIS
TEACHER’SACTIVITIES STUDENTSACTIVITIES
What do youthinkthe purpose of coolingsystem?
Yes studentA? Sirit keepsanengine inan
Efficienttemperature.
Yes,the coolingsystemkeepsthe engine
At itsmostefficienttemperatureatall speeds
Andoperatingconditions.
What will happenif thisheatinanengine will
Nottakenaway?
Yes studentB. Sir if thisheatwill nottaken
Awayinengine,itwill cause
The damagesparts inengine.
Yes correct!
Thisis one of the three jobsperformedby
The coolingsystem.Coolingsystemalso
Helpsbringthe engine uptonormal operating
Temperature asquicklyaspossible.

4. TEACHER’S ACTIVITIES STUDENTSACTIVITIES
Nowhowthe coolingsystemworks?
Yes studentC? The coolingsystemworksbysending
The liquidcoolanttothe engine blocks
and headsof engine.
Verygood!
AsstudentC saidthe coolingsystemsenda
Liquidcoolantthroughthe passagesof the engine
Blocksand heads.Asthe coolantflowsthroughthis
Passagesitpicksup heatfromthe engine.Thisheated
Fluidmakesitswaythroughthe radiator,as it flows
Throughthe thintubesinthe radiatorthishot liquid
Is cooledbythe air stream.Once this fluidiscooled
It returnsto the engine toabsorbmore heat.
There are five basicpartsof coolingsystemtodo
The jobincontrollingenginetemperature.
What are those?
Yes studentA? Sir the five basicparts of cooling
systemare waterpump,waterjackets
Thermostat,radiatorandfun.
As youcan see the picture (presentthe picture)
The cylinderblockandcylinderheadhave internal
Passagesorwater jackets,the coolantorantifreeze
Flowsthroughhere andpicksup some heat,andcool

5. Cool the metal parts andit heatsthe coolant.
Andthisis the jobdone by the waterpuma,
Water pumppushesthe hot coolantoutof the waterjackets
And through the radiator.
How the radiator works?
Yes studentB? Sirin the radiator the coolant
Losesheatto the passingair.
Yes the radiatoris alsocalledheatexchanger,it
Has two setsof passages.One setisfor the coolant
Andthe other isfor outside air.Once the coolant
Flowshere inthe radiatorthe coolantlosesheat
To the passingair and flowsbackagainthrough the water
Jacketsand pickup heatagain.
What isthe purpose of thermostat?
Yes studentC? sirthe purpose of thermostatIt
Allowsthe coolanttoflow.
Yes verygood.The purpose of thermostat
Is to controlsthe coolantflow.Whenanengine iscooled
The thermostatclosestopreventthe circulationtoradiator.
As the engine warmsupthe thermostatopenstoallow coolant
Flowthroughthe radiator.

6. What will happenif the thermostatfailure?
Yes studentA? Sirthe engine will get
Overheatedbecausethe coolant
Flowsthroughhere cannotcirculate
Will tothe radiator.
Yes verygood!
Thisis one alsoperformedbythe fan.
Fan pullsorpushesoutside airthrough
The radiator. Thisimprovesengine coolingespecially
At idle lowspeed.
3. Abstraction
TEACHERS ACTIVITIES STUDENTSACTIVITIES
Anyquestionorclarification? Nosir.
Nowwe’ll have anactivity.Let’s findoutif youreally
Understandthe lesson.
I have here a “conceptmap worksheet”withatopic
As the keyword.What are yougoingto do isto think
Andwrite the wordson the map that relate tothe focal
Word.
I will call five studenttowrite oneveryclusterthe thingsthat
Theyhave learnedfromthe topic.

7. Anyquestion? None teacher.
4. APPLICATION
TEACHERS ACTIVITIES STUDENTSACTIVITIES
Thistime well have anactivityIhave here
Picturesaboutthe five basicparts of coolingsystem
What are youare goingto do isto put the namesthat
Fiton the picturesandexplainitsoperation.
Five studentswillbe called.
5 BASIC
PARTS OF
COOLING
SYSTEM
Water
jackets
thermostat radiator
water
pump
fan

8. IV. EVALUATION
1. What iscoolingsystem?
2. What are the five basicpartsof coolingsystem
Andexplaineachpart?
V. ASSIGNMENT
For yourassignmenthave aresearchmore about engine cooling
System.Use any automotive boolsormodulesforyourreferences.
PREPARED BY:
CARLO R. MABUBAY
DIT-2