graphic expression: scale
DESCRIPTION
Notes about scale for student of 2º ESOTRANSCRIPT
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IES Ro CabeIES Ro Cabe2 ESO2 ESOTECHNOLOGYTECHNOLOGY
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ESCALA
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We often design objects that are biggerbigger or smallersmaller than the
paper we draw on
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ScalingScaling means drawing the object bigger or smaller than it really is.
The scale indicates the number of times that we reduce or increase the object.
SCALESCALE =DRAWINGDRAWING
REAL REAL ObjectObject
ESCALAESCALA = DIBUJODIBUJOOBJETO REALOBJETO REAL
La escala indica el numero de veces que reducimos o aumentamos el objeto
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Types of scalesTypes of scales
Full ScaleFull Scale Escala Natural
Scale downScale down Escala de reduccin
Scale upScale up Escala de ampliacin
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Full ScaleFull Scale Escala Natural
DrawingDrawing Real ObjectReal Objectsame size
ExamplesExamples
Full scale is expressed as Full scale is expressed as
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Scale downScale down Escala de reduccin
DrawingDrawing Real ObjectReal ObjectSmaller
We indicate We indicate scale down:scale down:
When object is too large to fit on the paper.When object is too large to fit on the paper.
Letter ELetter E
Number 1Number 1 ColonColon
Number Number greater than 1greater than 1
We divide all the dimensions of the real object by the number of the scale
Dividimos todas las medidas del objeto por el nmero que indica la escala
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ExamplesExamples
we divide by twowe divide by two
drawing is half the size of the real object
Hammer
drawing is tenth of the size of the real object
we divide by tenwe divide by ten
Door
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Scale upScale up Escala de ampliacin
DrawingDrawing Real ObjectReal ObjectBigger than
We indicate We indicate scale up:scale up:
When object is When object is too small to see it in detail..
Letter ELetter ENumber 1Number 1
ColonColonNumber Number
greater than 1greater than 1
We multiply all the dimensions of the real object by the number of the scale
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ExamplesExamples
we multiply by twowe multiply by two drawing is twice
the size of the real object TIPEX
we multiply by tenwe multiply by ten
Nut drawing is ten times as big as the real object
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