Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
12/17/14
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area and Volume
?
HW: Complete Delta Math Assignment 15 by Sunday Midnight
DO NOW
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Guess my weight....
Is one guess worse than the other? Why or why not?
Guess: 450lbs
150lbs
Actual: 400lbs
100lbs
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Relative Error
Ms. Sims wants to calculate the area of the surface (a square), and the volume of the water (a cube). The actual lengths of all the segments are 4 feet. When she measures them, she mistakenly gets an answer of 5 feet. Question: Are both of the calculations going to be off by the same amount? Why or why not?
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Relative Error
Ms. Sims wants to calculate the area of the surface (a square), and the volume of the water (a cube). The actual lengths of all the segments are 4 feet. When she measures them, she mistakenly gets an answer of 5 feet. How does this error affect her calculations?
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Complete Problems #1 & #2 on Worksheet
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Calculating Relative Error
Finish Worksheet
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
9
Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
10
Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
What is relative error and how do we calculate it?
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Final Challenge
To calculate the volume and surface area of a cylinder, John measured the radius and the height. According to his measurements, the radius is 2.2 inches and the height is 6.3 inches. The actual measurements are a radius of 2 inches and a height of 6 inches. Which calculation has a greater relative area, the surface area or the volume?
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Regents Prep ­ Day 65 ­ Relative Error.notebook
December 15, 2014
Aim: How Significant are Mistakes in Measuring Dimensions When Calculating Surface Area &Volume?
Final Challenge
To calculate the volume and surface area of a cylinder, John measured the radius and the height. According to his measurements, the radius is 2.2 inches and the height is 6.3 inches. The actual measurements are a radius of 2 inches and a height of 6 inches. Which calculation has a greater relative area, the surface area or the volume?
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