Presentation on theme: "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."— Presentation transcript:
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 torch305 feet 1 inch Length of head17 feet 3 inches Length of right arm42 feet Thickness of waist35 feet Ground to top of pedestal154 feet Top of pedestal to tip of torch151 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 42 feet Round to the nearest ¼ inch to get 1.25 inches as the dimension for our model. 1 inch _ 35 feet Photo courtesy of http://office.microsoft.com/clipart/results.aspx?lc=en-us&Scope=MC&Query=measuring X= 1.2 inches
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. Dimensions of Scale Model Height from ground to tip of torch Length of head Length of right arm1.25 inches Thickness of waist Ground to top of pedestal Top of pedestal to tip of torch
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?
Sarah, Thanks for sending me the scaling activity. And thanks for the explanation about how the process works. : ) I use the ideas for the scaling activity in class this week. One day the students drew two-dimensional drawings of how to get from home to school, use the scale on a map to figure distances, measured and drew a scale model of the classroom, etc. The next day we went through the powerpoint presentation that was included in the email. I learned how to use some new technology (hooking a projector up to my computer), and the kids seemed to enjoy a change of pace with how the notes were presented. Then the students built the model of the Statue of Liberty using "Fun Dough" that I had purchased at Wal-Mart that morning (at $0.97 for a four pack). They worked in partners. There wasn't quite enough dough for the whole statue, so they had to use the cannister for part of the base of the statue! Thanks so much for the work. It turned out to come at a good time after all! Caroline Jones
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