When will we use this in real life

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• When will we use this in real life?

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Overview of the Unit
This activity introduces Integrated Math I
students to the Library of Congress website
through the topic of ratios and proportions.
Students will work with ratios by reducing, simp
lifying, comparing, and solving ratio problems.
They will apply their ratio skills to
architecture by doing scale drawings of famous
buildings in the United States.
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Objectives of the Unit

• Students will use ratios to compare objects,
  numbers, and variables.
  
• Students will reduce ratios to lowest terms.
• Students will identify equivalent ratios and show
  how ratios are equivalent.
  

• Students will solve proportions using equivalent
  ratios.
  
• Students will apply ratios to architecture by
  using scale factors to draw buildings.
  

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Lesson Plan Procedure

• (2 days) Teacher presents ratios with in class
  practice.
  
• (1 day) Group work using scale factors.
• (1 day) Teacher shows example project.
• (1 day) Students in computer lab using the
  Library of Congress website to find their famous
  building/structure.
  
• (1 day) Students work in class on project.
• (1 day) Students present their project to the
  entire class.
  

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Instruction

• In class lesson on ratios as comparisons of
  different things.
  
• Practice making ratios by comparing things like
  hair color, athletes to non-athletes, siblings to
  no siblings, etc.
  
• Practice simplifying and reducing ratios so that
  they are in lowest terms.
  
• Find examples of equivalent ratios and show how
  ratios are equivalent.
  

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Scale Factors

• Working in groups of three
• Students will measure the actual dimensions of
  some part of our school building and record these
  measurements.
  
• Each group will choose a scale factor (ex., 1
  inch 4 feet) and draw a scale drawing of the
  thing that they originally measured.
  
• Teacher will check computations of each group and
  groups will share with the class and everyone
  will try to guess what the original object was by
  looking at the scale drawings.

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Lets use ratios to make scale drawings of famous
buildings/structures in the United States!
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Oscar Steffens House 7631 N. Sheridan Road Chic
ago
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(No Transcript)
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Using Library Of Congress Web-site

• At the web-site you the students will find
  pictures of their building/structure as well as
  blue prints that show the actual measurements.
  
• Then using these dimensions they will choose an
  appropriate scale to use in order to make an
  accurate scale drawing of the famous
  building/structure.
• Go to the following web-site http//memory.loc.go
  v/ammem/hhquery.html
  
• Type in the name of the famous building/structure
  and find the pictures and drawings of it.
  
• Use these to help determine the actual dimensions
  of the building/structure.
  
• For example, lets try it with my Frank Lloyd
  Wright house pictured earlier . . .
  

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Scale Factor Project

• Each student will be assigned a famous building
  or structure
  
• She will use the LOC web-site to determine the
  actual dimensions of her building or structure.
  
• She will choose a scale and make a scale drawing
  of her building.
  
• She will hand in her scale drawing, her ratio
  computations, and a picture of her building or
  structure.
  
• The following famous buildings and structures
  will be used . . .

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Famous Buildings and Structures
Brooklyn Bridge
The Alamo
Jefferson Memorial
Lincoln Memorial
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Famous Buildings and Structures Continued
Paul Reveres House
Portland Lighthouse
Statue of Liberty
Washington Monument
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More famous buildings and structures!
Chicago Water Tower
White House
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A very necessary and useful application of
mathematics!