Docstoc

Slide 1 - PEER

Document Sample
Slide 1 - PEER Powered By Docstoc
					Scaling
 Scaling

• Scaling is a skill used by
  many people for a variety of
  jobs
• Today we will learn this skill
  by making a scale model of
  the Statue of Liberty



             Photo courtesy of http://www.freefoto.com/preview.jsp?id=1210-11-58
           Steps of Scaling
1. Pick a scale you want to use to build a
   model.

2. Make a table of the dimensions to be
   used in your model from the dimensions
   of the object

3. Build your model using the dimensions
   calculated in step two
          The Statue of Liberty
The Statue of Liberty has the following
measurements. Copy these on a sheet of paper.
                                     Dimensions in Feet


Height from ground to tip of torch     305 feet 1 inch
         Length of head               17 feet 3 inches
       Length of right arm                 42 feet
       Thickness of waist                  35 feet
    Ground to top of pedestal             154 feet
  Top of pedestal to tip of torch      151 feet 1 inch
        Choosing a Scale
    The first step of making a scale model
is deciding what type of scale to use.
Today you will be using a scale of
                1 inch = 35 feet
    The next step is to create a quick table
of the dimensions of your model at the
scale chosen.



              Photo courtesy of http://office.microsoft.com/clipart/results.aspx?lc=en-us&Scope=MC%2CMM%2CMP%2CMS&Query=rulers
Calculating Model Dimensions
To calculate model dimensions take the actual
dimensions of the object and multiply it by the scale
being used. Today we will neglect the inches used in
dimensions (so 305’ 1” will just be 305’) and we will
round off our model to the nearest ¼ inch in each
calculation.

              For example,
               Actual length of right arm: 42 feet
                              1 inch _
               42 feet X               = 1.2 inches
                              35 feet
               Round to the nearest ¼ inch to get 1.25 inches as
               the dimension for our model.

                           Photo courtesy of http://office.microsoft.com/clipart/results.aspx?lc=en-us&Scope=MC&Query=measuring
            Create Your own Table
   Now create your own table with all the
   dimensions you will use for your model.
   Here’s how it should look with the one we
   already did filled in.
         Measurement                 Original Dimensions   Scaled Dimensions
Height from ground to tip of torch      305 feet 1 inch
         Length of head                17 feet 3 inches
       Length of right arm                  42 feet           1.25 inches
       Thickness of waist                   35 feet
    Ground to top of pedestal              154 feet
  Top of pedestal to tip of torch       151 feet 1 inch
       Basis for Your Model




   To help with building your model you can
draw a rough sketch of what you want your
model to look like with dimensions drawn in.
This will help when you are building your
model to help you remember what size
everything is.
              Photo courtesy of http://office.microsoft.com/clipart/results.aspx?lc=en-us&Scope=MC%2CMM%2CMP%2CMS&Query=rulers
           Start Building
The final step is to build the model. Now
sculpt the Statue of Liberty according to
the dimensions you calculated.




                     Photo courtesy of http://www.ah.dcr.state.nc.us/sections/archives/arch/bmc_web_page/bmc.htm
               Questions
1. If the scale was 1 inch = 17 feet, what
   would the dimensions of the model be?
2. If the scale was 1 inch = 10 feet, what
   would the dimensions of the model be?

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:2
posted:5/10/2013
language:simple
pages:10