Using Scale Drawings
Scale drawings are a good example of how similar shapes are used in the real world.
The scale drawing is either an enlargement or dilation (reduction) of the real life object.
Large objects, like houses and cars, are drawn smaller by dividing by a scale factor.
Another example of this is maps of towns and countries.
Very small objects, like insects or computer chips, can be drawn as enlargements so that we can better see their details.
Written Work - copy the following notes into your workbook.
The scale for this drawing is 1:50
The width of the real car, in cm, is: (write the number only, do not write the units)
The width of the real car, in metres, is: (write the number only, do not write the units)
The scale for this drawing is 1:100
The height of the real house, in cm, is: (write the number only, do not write the units)
The height of the real house, in metres, is: (write the number only, do not write the units)
The scale for this drawing is 3:1
The length of the real paperclip, in cm, is: (write the number only, do not write the units)
The scale for this drawing is 1:40
The length of the real dinosaur, in cm, is: (write the number only, do not write the units)
The length of the real dinosaur, in metres, is: (write the number only, do not write the units)