Technology and livelihood education seven ict of grade 9

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2. TechnologyandLivelihoodEducation–Grade7
AlternativeDeliveryMode
Module9:PrepareandInterpretTechnicalDrawing
FirstEdition,2020
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3. Technologyand
LivelihoodEducation
Module9
(PREPAREANDINTERPRETTECHNICAL
DRAWING)
DepartmentofEducation●RepublicofthePhilippines
Thisinstructionalmaterialwascollaborativelydevelopedand
reviewedbyeducatorsfrompublicschools.Weencourageteachersand
othereducationstakeholderstoemailtheirfeedback,comments,and
recommendationstotheDepartmentofEducation–Region10at
[email protected].
Wevalueyourfeedbackandrecommendations.
FAIRUSEANDCONTENTDISCLAIMER:ThisSLM(Self–LearningModule)is
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representnorclaimownershipoverthem.Sincerestappreciationtothosewho
havemadesignificantcontributionstothesemodules.

4. i
IntroductoryMessage
Forthelearner:
WelcometotheTechnologyandLivelihoodEducation7Alternative
DeliveryMode(ADM)ModuleonPrepareandInterpretTechnicalDrawing.
Thehandisoneofthemostsymbolizedpartofthehumanbody.Itisoften
usedtodepictskill,actionandpurpose.Throughourhandswemaylearn,createand
accomplish.Hence,thehandinthislearningresourcesignifiesthatyouasalearner
iscapableandempoweredtosuccessfullyachievetherelevantcompetenciesand
skillsatyourownpaceandtime.Youracademicsuccessliesinyourownhands!
Thismodulewasdesignedtoprovideyouwithfunandmeaningful
opportunitiesforguidedandindependentlearningatyourownpaceandtime.You
willbeenabledtoprocessthecontentsofthelearningresourcewhilebeinganactive
learner.
Thismodulehasthefollowingpartsandcorrespondingicons:
WhatINeedtoKnow
Thiswillgiveyouanideaoftheskillsor
competenciesyouareexpectedtolearnin
themodule.
WhatIKnow
Thispartincludesanactivitythataimsto
checkwhatyoualreadyknowaboutthe
lessontotake.Ifyougetalltheanswers
correct(100%),youmaydecidetoskipthis
module.
What’sIn
Thisisabriefdrillorreviewtohelpyoulink
thecurrentlessonwiththepreviousone.
What’sNew
Inthisportion,thenewlessonwillbe
introducedtoyouinvariouswayssuchasa
story,asong,apoem,aproblemopener,an
activityorasituation.
WhatisIt
Thissectionprovidesabriefdiscussionofthe
lesson.Thisaimstohelpyoudiscoverand
understandnewconceptsandskills.
What’sMore
Thiscomprisesactivitiesforindependent
practicetosolidifyyourunderstandingand
skillsofthetopic.Youmaychecktheanswers
totheexercisesusingtheAnswerKeyatthe
endofthemodule.

5. ii
WhatIHaveLearned
Thisincludesquestionsorblank
sentence/paragraphtobefilledintoprocess
whatyoulearnedfromthelesson.
WhatICanDo
Thissectionprovidesanactivitywhichwill
helpyoutransferyournewknowledgeorskill
intoreallifesituationsorconcerns.
Assessment
Thisisataskwhichaimstoevaluateyour
levelofmasteryinachievingthelearning
competency.
AdditionalActivities
Inthisportion,anotheractivitywillbegivento
youtoenrichyourknowledgeorskillofthe
lessonlearned.Thisalsotendsretentionof
learnedconcepts.
AnswerKey
Thiscontainsanswerstoallactivitiesinthe
module.
Attheendofthismoduleyouwillalsofind:
Thefollowingaresomeremindersinusingthismodule:
1.Usethemodulewithcare.Donotputunnecessarymark/sonanypartofthe
module.Useaseparatesheetofpaperinansweringtheexercises.
2.Don’tforgettoanswerWhatIKnowbeforemovingontotheotheractivities
includedinthemodule.
3.Readtheinstructioncarefullybeforedoingeachtask.
4.Observehonestyandintegrityindoingthetasksandcheckingyouranswers.
5.Finishthetaskathandbeforeproceedingtothenext.
6.Returnthismoduletoyourteacher/facilitatoronceyouarethroughwithit.
Ifyouencounteranydifficultyinansweringthetasksinthismodule,donot
hesitatetoconsultyourteacherorfacilitator.Alwaysbearinmindthatyouarenot
alone.
Wehopethatthroughthismaterial,youwillexperiencemeaningfullearning
andgaindeepunderstandingoftherelevantcompetencies.Youcandoit!
References Thisisalistofallsourcesusedindeveloping
thismodule.

6. iii
TableofContents
LESSON9 ---------------- 1
WhatINeedtoKnow ---------------- 1
WhatIKnow ---------------- 2
What’sIn ---------------- 3
What’sNew ---------------- 4
WhatisIt ---------------- 5
What’sMore ---------------- 10
WhatIHaveLearned ---------------- 12
WhatICanDo ---------------- 13
Assessment ---------------- 19
AdditionalActivities ---------------- 21
AnswerKey ---------------- 22
References ---------------- 23

7. iv
Lesson
9
PrepareandInterpret
TechnicalDrawing
LO.1.AnalyzeSigns,SymbolsandData
WhatINeedtoKnow
Thismodulewasdesignedandwrittenwithyouinmind.Itishereto
helpyoumasterthenatureofTechnicalandLivelihoodEducation,inthefield
ofTechnicalDrafting.Thescopeofthismodulepermitsittobeusedinmany
differentlearningsituations.Thelanguageusedrecognizesthediverse
vocabularylevelofstudents.Thelessonsarearrangedtofollowthestandard
sequenceofthecourse.Buttheorderinwhichyoureadthemcanbe
changedtocorrespondwiththetextbookyouarenowusing.
Aftergoingthroughthismodule,youareexpectedto:
LO.1.Analyzesigns,symbolsanddata
1.Identifysignsandsymbolsusedintechnicaldrawing
2.Analyzedataindicatedinthetechnicaldrawing
Ingoingthroughthemodule,youhavetoextendyourpatiencein
understanding,analyzingwhatyouarereading.Followthedirectionsand/or
instructionsintheactivities.Answertheentiregiventestandexercises
carefully.Complytherequiredactivitiesprovided.

8. 2
WhatIKnow
MULTIPLECHOICE.
DIRECTIONS:Beforestartingthismodule,letusseewhatyoualreadyknew
aboutTechnicalDrawing.WriteyouranswersonyourTLE–Technical
DraftingActivityNotebook.
1.Itgivesanideaofstability,stagnancyandtranquility.
a.BrokenLine
b.DiagonalLine
c.HorizontalLine
d.VerticalLine
2.Itgivesthequalityofdignity,royaltyandjubilance.
a.BrokenLine
b.DiagonalLine
c.HorizontalLine
d.VerticalLine
3.Itsuggestsaction,progressandascension.
a.BrokenLine
b.DiagonalLine
c.HorizontalLine
d.VerticalLine
4.WhichofthefollowingisaHiddenLine?
a.
b.
c.
d.
5.WhichofthefollowingisaSectionLine?
a.
b.
c.
d.

9. 3
What’sIn
Onthepreviouslesson,you’velearnedallaboutmensurationand
calculation,andalsoasktoperformthetaskaboutmeasuringanobject.
Beforeweproceedthislesson,letmeaskyousomequestion.Howdo
youprepareyourselfforaday,likeduringbreakfast?Whatpreparationswere
giventoyoubyyourparents?Wereyouaskedtogettheonionsandgarlicin
thekitchenbecauseyouwillbecookingyourfavorite“IsdangPaksiw”forthe
breakfast?Didyourparentstellyoutowashthecookingutensilsbeforeusing?
IntheworldofTechnicalDrafting,alwaysprepareyourselffortasks
thatyouwillbeperforming,evenifit’stime-pressured,sinceseeking
immediateaccuracyandpresentableoutputisverynecessary.
OneoftheconstantelementsmadeinTechnicalDraftingismakingof
lines.Forsure,youonlyknewaboutstraightandcurvelines.Butthere’smore
informationaboutlines.Andthat’sthefirstthingyoumustknowinthislesson.
Youneedtoidentifythedifferentkindsoflinesanditsmeaning.

10. 4
What’sNew
Attachedinthismoduleincludesdrawingtemplates,andportfolioofthe
drawingactivitiesyoumustperformforthecompilationofthedrawingplates.
Foryoutostartwith,performTaskSheet1–StillLifeDrawing.
TaskSheetNo.:1
TaskSheetTitle:StillLifeDrawing
Description:
Thisactivityistotestyourskillindrawing.Itdoesn’tmatterifyouarewell-
versedindrawingorabeginner.Thepurposeistoidentifyyourrangeinthe
visual-spatialaspectofintelligence.Consideritasastartofyourjourneyin
TechnicalDrafting.
DIRECTIONS:
Insideyourhouse,lookforanyoftheseobjects(plants,flower,leaf,etc.).
Placeitonatable.Sitcloselyontheobject.Drawyourchosenobjectexactly
intheangleashowyouseeit.Dothisinaone(1)wholesheetofbondpaper
inlegalsize.Youwillberatedaccordingtotherubricsbelow.
Tools/Materialstobeused:
1LegalsizeBondpaper
1Pencil
1Eraser

11. 5
CriteriafortheActivity: AnalyticScoringRubrics
Criteria 25points 15points 10point
ACCURACY Alllinesaredrawn
appropriatelyand
freehand
Somelinesare
drawn
inappropriately
andNOTin
freehand.
Mostofthelines
are
inappropriately
drawnandNOT
infreehand
NEATNESS Finishedoutput
wasneatlydone,
pleasingtothe
eyesandno
erasures/smudges
found.
Pleasingbut
erasuresand
smudgesare
observableon
thefinished
output.
Finishedoutput
havesomany
erasuresand
smudgesand
quiteunpleasant
WhatisIt
LINES
Lineisoneofthebasicelementsofartalongwithcolor,form,texture,
value,volumeandperspective.InBasicMath,youcancreatealinejustby
connectingtwopoints.Linesignifiesmanymeaningsandtranslations.Takea
lookatyourpalm.Everylinesignifiesmeaningofyourlife.
Weseeorportraylinesintheobjectsofnature.Theyareeithervisible
orimaginative.Weusethemtodrawtheformsofobjectortotrackdirection
ofmovements.Theygivementalsuggestionswhetherweareconsciousofit
ornot.
Therearetwotypesoflines.StraightandCurvedLines.
StraightLine
CurvedLine

12. 6
KINDSOFSTRAIGHTLINES
1.VerticalLine.Givethequalityofdignity,royaltyandjubilance.
2.HorizontalLine.Givetheideaofstability,stagnancyandtranquility.
3.DiagonalLine.Suggestaction,progressandascension.
4.BrokenLines.Suggestconflict,violence,speedandstruggle.
TYPESOFCURVEDLINES
1.RestrainedCurve.Onewithasubtlebendastheshapeofawoman’s
body.
2.SimpleCurve.Hasmorepronouncedbendthantherestrainedcurve.
3.FullCurve.Moreforcefulthanthefirsttwoandfollowsmovementsof
theletter“c”.
4.CompoundCurve.Changesthebendtowardstheoppositedirection
whichfollowsthegracefulmovementsofletter“S”.
ALPHABETOFLINES
Indrawinganddrafting,linesareusedtoemphasizeclearlyand
understandwellwhatisbeingdrawn.Inthesamewaythatlettersarerelated
towords,linesdescribedrawings.
Linesarecharacterizedaccordingtotheirforms(shape)andweight
(thicknessorthinness).

13. 7
Usually,mediumsoftpencils(ForH)areusedforthicklines,while
slightlyhardpencils(2H)areusedforthinnerlines.Theselinesareoften
called“Alphabet”oflines.Thefiguresbelowwillshowhoweachlinelookslike,
andexplainstheirusesandcharacteristics.
1.HiddenLines.Usedtoshowsurfaces,edges,orcornersofanobject
thatarehiddenfromview.HLareinvisiblemediumweightlinesusedto
designateorrepresentcertain
partsoredgesofanobject
whicharenotvisibleina
drawing;consistofdashes1/8”
longandspaced1/16”apart.
2.CenterLine.Todesignatethecenterofanarc,acircleorsymmetrical
objects,thiskindoflineisusedconsistingoflightweightshort(1/8”)
andlongdashes(3/4”).
3.ExtensionandDimensionLines.Lightlines,withdimensionnumbers
betweeneachlineendingwitharrowheadstoindicatetheendofthe
specifieddimension,thelimitofwhichisdesignatedbytheextension
lines.
4.LeaderLines.Leadersareusedtoindicatethepartofthedrawingto
whichanoterefers.Arrowheadstouchtheobjectlineswhilethedot
restsonasurface.

14. 8
5.LongBreakLines.Thislineindicatesthatthestructurehadbeencut
forbeingtoobigforthepaperused,andtheobjectissymmetricalinall
partsofthedesign.Thisisdrawninastraightthinformwithafreehand
zigzag.
6.ShortBreakLines.Thisisasolidthicklineequivalenttoanobjectline
thatisdrawninfreehand.Itshowsabreakinaspecificpartofthe
object,asinsectioningandirregularbreaksoftheobject.
7.CuttingPlaneLines.Usedwhenanimaginarycutthroughanobjectis
tobealongtheline.Itconsistsoflongdashesbetweenashortdash
(1/8”).
8.VisibleLines.Showtheoutlineoftheobject(inmediumweight)once
ithasbeendrawn;thusotherwiseknownas“objectlines”.

15. 9
9.SectionLines.Theyarealsolightweightlinesanddrawnfullytoshow
aclearcutofapartshowingthekindofmaterialusedfortheobject.
What’sMore
Activity1.SketchingLines
DIRECTIONS:Figures
shownbelowaresuggested
exercisesonlinesandcurvesto
bedrawninyourTLE–
TechnicalDraftingActivity
Notebook.Chooseonly4ofthe
figuresyouwanttodrawinyour
notebook.Youmayusepencil
orballpentodrawthefigureof
yourchoice.Youroutputwillbe
ratedaccordingtotherubrics
below.
CriteriafortheActivity: AnalyticScoringRubrics
Criteria 5points 3points 1point
ACCURACY Alllinesaredrawn
appropriatelyand
freehand
Somelinesare
drawn
inappropriatelyand
NOTinfreehand.
Mostofthelinesare
inappropriately
drawnandNOTin
freehand
NEATNESS Finishedoutputwas
neatlydone,
pleasingtotheeyes
andno
erasures/smudges
Pleasingbut
erasuresand
smudgesare
observableonthe
finishedoutput.
Finishedoutputhave
somanyerasures
andsmudgesand
quiteunpleasant

16. 10
found.
Activity2:Let’sDotheMatching!
DIRECTIONS.Matchthecorrectalphabetoflineandwriteyouranswerson
yourTLE–TechnicalDraftingActivityNotebook.
1.SectionLine a.
2.VisibleLine b.
3.HiddenLine c.
4.LongBreakLine d.
5.CuttingPlaneLine e.
6.ShortBreakLine f.
7.CenterLine g.
8.LeaderLine h.
9.ExtensionLine i.
10.DimensionLine j.

17. 11
WhatIHaveLearned
DIRECTIONS:Readthesentencesgiven.Fillintheblankswiththe
appropriatewordtomakethesentencecomplete.WriteyouranswersonyourTLE–
TechnicalDraftingActivityNotebook.
1.Therearetwotypesoflines.__________lineand_________line.
2.Therearefourkindsofstraightlines:_________,_________,
_________and_________lines.
3.Therearefourtypesofcurvedlines:_________,_________,
_________,and_________curve.
4._________linesareusedtoshowsurfaces,edgesorcornersofan
objectthatarehiddenfromview.
5._________linesareusedtodesignatethecenterofanarc,circleor
symmetricalobjects.
6._________and_________linesarelightlines,withdimension
numbers,toindicatetheendofthespecifieddimension.
7._________linesareusedtoindicatethepartofthedrawingtowhicha
noterefers.
8._________linesarelineindicatingthatthestructurehadbeencutfor
beingtoobigforthepaperused,andtheobjectissymmetricalinall
partsofthedesign.Itisintheformoffreehandzigzag.
9._________lines,asolidthicklineequivalenttoanobjectlinethatis
drawninfreehand.
10._________linesareusedwhenanimaginarycutthroughanobjectis
tobealongtheline.Itconsistsoflongdashesbetweenashortdash.
11._________showtheoutlineoftheobject(inmediumweight)onceit
hasbeendrawn;thusotherwiseknownas“objectlines”.
12._________arealsolightweightlinesanddrawnfullytoshowaclear
cutofapartshowingthekindofmaterialusedfortheobject.

18. 12
WhatICanDo
Inorderforyoutopracticeyourfreehanddrawingskills,youmust
performTaskSheet2:LinesandCurves.Youmaythinkatfirst,youcan’tdo
thetasks.Butonceyougetstarted,youwillfindenjoymentandfulfilment
whileperformingthetasks.So,let’sgetstarted.
TaskSheetNo.:2
TaskSheetTitle:LinesandCurves
Description:Thisactivityistotesttheflexibilityofyourhands,accuracy,
focusandneatnessofyourwork.Extremefocusandconcentrationisthekey
inaccomplishingthetask.Neatnessisamusttoachieveperfectioninthis
work.
DIRECTIONS:Insidethedrawingtemplate,thereare6blankboxesforyouto
draw.DrawtheitemsinDrawingPlate2provided.Followthedrawingplates
accurately.Youroutputwillberatedaccordinglywiththerubricsbelow.
Tools/Materialstobeused:
1A4Bondpaper 1Pencil 1Eraser
CriteriafortheActivity: AnalyticScoringRubrics
Criteria 25points 15points 10point
ACCURACY Alllinesaredrawn
appropriatelyand
freehand
Somelinesare
drawn
inappropriatelyand
NOTinfreehand.
Mostofthelinesare
inappropriately
drawnandNOTin
freehand
NEATNESS Finishedoutputwas
neatlydone,
pleasingtotheeyes
andno
erasures/smudges
found.
Pleasingbut
erasuresand
smudgesare
observableonthe
finishedoutput.
Finishedoutputhave
somanyerasures
andsmudgesand
quiteunpleasant

19. 13

20. 14
TaskSheetNo.:3
TaskSheetTitle:MechanicalLines
Description:Thereare2DrawingPlatesyouneedtoaccomplishinthistask
namely:MechanicalLinesandAlphabetofLines.Theseactivitieswilltest
youreyeaccuracy,focusandneatnessofyourwork.Extremefocusand
concentrationisthekeyinaccomplishingthetask.Neatnessisamustto
achieveperfectioninthiswork.Acleanerworkmeanshigherratinginthis
task.ThistaskisthesameasTaskSheet2,butnowusingrulersand
triangles.Tip:Don’tpressyourpencilhard.Trytodrawlightly.Applyless
pressureinholdingthepencil.
DIRECTIONS:Insidethedrawingtemplate,thereare6blankboxesforyouto
draw.DrawtheitemsintheDrawingPlate3provided.Followthedrawing
platesaccurately.
Tools/Materialstobeused:
CriteriafortheActivity: AnalyticScoringRubrics
Criteria 25points 15points 10point
ACCURACY Alllinesaredrawn
appropriatelyand
freehand
Somelinesare
drawn
inappropriately
andNOTin
freehand.
Mostofthelines
are
inappropriately
drawnandNOT
infreehand
NEATNESS Finishedoutput
wasneatlydone,
pleasingtothe
eyesandno
erasures/smudges
found.
Pleasingbut
erasuresand
smudgesare
observableon
thefinished
output.
Finishedoutput
havesomany
erasuresand
smudgesand
quiteunpleasant
1DrawingPlate(tobeprovided)
1Pencil
1Eraser
1Ruler
1Triangle

21. 15
TaskSheetNo.:4
TaskSheetTitle:AlphabetofLines
Description:Thisactivityistotestyoureyeaccuracy,focusandneatnessof
yourwork.Extremefocusandconcentrationisthekeyinaccomplishingthe
task.Neatnessisamusttoachieveperfectioninthiswork.Acleanerwork
meanshigherratinginthistask.Tip:Don’tpressyourpencilhard.Trytodraw
lightly.Applylesspressureinholdingthepencil.Whenyouaredonedrawing
thedraft,that’sthetimeyouaregoingtoapplyhardpressureonyourwork.
Instruction:Insidethedrawingtemplate,thereare6blankboxesforyouto
draw.Drawtheitemsinsideaccordingly.Havefun.
Tools/Materialstobeused:
1Paper(Bondpaper/Intermediate)
1Pencil
1Eraser
1Ruler

22. 16

23. 17
Assessment
MultipleChoice.Choosetheletterofthebestanswer.Writethechosenletter
onaseparatesheetofpaper.
1.Usedwhenanimaginarycutthroughanobjectistobealongtheline.It
consistsoflongdashesbetweenashortdash(1/8”).
a.CuttingPlaneLine
b.HiddenLine
c.ShortBreakLine
d.VisibleLine
2.Usedtoshowsurfaces,edges,orcornersofanobjectthatarehidden
fromview.
a.CuttingPlaneLine
b.HiddenLine
c.ShortBreakLine
d.VisibleLine
3.Showtheoutlineoftheobject(inmediumweight)onceithasbeen
drawn;thusotherwiseknownas“objectlines”.
a.CuttingPlaneLine
b.ShortBreakLine
c.VisibleLine
d.HiddenLine
4.WhichofthefollowingisaHiddenLine?
a.
b.
c.
d.
5.WhichofthefollowingisaSectionLine?
a.
b.
c.
d.
6.Whichofthefollowingisacuttingplaneline?
a.
b.
c.
d.
7.Whichofthefollowingisanexampleoflongbreakline?

24. 18
a.
b.
c.
d.
8.Whichofthefollowingisanexampleofshortbreakline?
a.
b.
c.
d.
AdditionalActivities
DIRECTIONS:Thisisanexampleofaworkingmachinedrawing.Labelthe
followingitemswiththecorrespondingAlphabetofLine.Chooseyouranswersonthe
boxprovidedbelow.WriteyouranswersonyourTLE–TechnicalDraftingActivity
Notebook.
CenterLine HiddenLine
SectionLine CuttingPlaneLine
VisibleLine ExtensionLine
LongBreakLine DimensionLine
1. 5.
2. 6.
3. 7.
4. 8.

25. 19
AnswerKey

26. 20
References
LAURITO,BENITOC.BSIE-MTT(DRAFTING)TechnicalDrawingfor
Beginners.Dept.ofIndustrialTeachersEducation,CollegeofEducation,
MSU-IIT,IliganCity2000.
Kto12BasicEducationCurriculumTechnologyandLivelihood
EducationLearningModule(MechanicalDrafting)Grade7&8Exploratory
Course
SmallMetalBox.ForBreakfast.
https://malyunok.com/still-life/breakfast

27. 21

28. Forinquiriesorfeedback,pleasewriteorcall:
DepartmentofEducation–Region10
Zone1,DepEdBuildingMastersonAvenue,UpperBalulang
CagayandeOroCity,9000
Telefax:[phone]
E-mailAddress:[email protected]