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You can tell it's twice as big because we've put a scale beside it. Actually, to be more precise, the second box is twice as long as the first one. The correct way to say this is that it has been scaled up by a factor of two. ... Scale Factor 2 2 times 4 times 8 times...
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www.worsleyschool.net/science/files/scalefactor/factors...
www.worsleyschool.net/science/files/scalefactor/factors.html
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Scale Factor/Similarities: ... Corresponding sides change by the same scale factor. What does this mean? ... How does the scale factor going from the large figure to the small figure compare to the scale factor of the small figure to the large figure?
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wms.watertown.k12.ma.us/math/math_help/gradeseven/stret...
wms.watertown.k12.ma.us/math/math_help/gradeseven/stretching/scale%20factor.htm
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index: click on a letter ... Note: The ratio of areas of two similar figures is the square of the scale factor. The ratio of volumes of two similar figures is the cube of the scale factor.
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www.mathwords.com/s/scale_factor.htm
www.mathwords.com/s/scale_factor.htm
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The Scale Factor can be set to any integer value from 1 to 6. Rectangle B will correspondingly appear from 1 to 6 times as large as Rectangle A. ... How does the ratio between the perimeters change as the scale factor changes?
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illuminations.nctm.org/ActivityDetail.aspx?ID=176
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Wheels® Monster Jam® cars is 1:24. The scale factor for; HO scale trains is 1:87. The scale factor is the number by which each dimension of the original object is multiplied to find the corresponding dimension of the model.
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illuminations.nctm.org/Lessons/Scaling/Scaling-OVH-Scal...
illuminations.nctm.org/Lessons/Scaling/Scaling-OVH-Scale.pdf
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In this part, Side Length and Area of Similar Figures, the user can manipulate the side lengths of one of two similar rectangles and the scale factor to learn about how the side lengths, perimeters, and areas of the two rectangles are related.
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standards.nctm.org/document/eexamples/chap6/6.3/index.h...
standards.nctm.org/document/eexamples/chap6/6.3/index.htm
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Shrinking and expanding figures to maintain the original proportions of the shape involves understanding how to scale a figure. Besides considering how a scale factor changes the linear dimensions, these problems may also address how the perimeter or area are affected.
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mathforum.org/library/problems/sets/prealg_ratio_scale....
mathforum.org/library/problems/sets/prealg_ratio_scale.html
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A scale factor is the number that you need to multiply by to get the other number. for example if you have 2 side lengths tha are similar and one is 3 and on is 9, the scale factor from 3 to 9 is 3. from 9 to three it is 1/3.
http://wiki.answers.com/Q/What_is_Scale_Factor
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