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Friday, January 29, 2016

1/29 M&M Lab: Percent Error

1.  Warm-up:  Which situation represents the largest % Error?

a)  A recipe for cookies calls for 325 grams of flour.  A baker measures 342 grams and adds it to the ingredients.

b)  Using his knowledge of proportions and shadows, Andy was able to estimate that the flag pole was 28 feet high.  The actual height of the flag pole is 27 feet, 3 inches.


2.  M&M Lab: Percent Error

Instructions:

You DO NOT have permission to eat any M&Ms until your data has been recorded, and you have correctly calculated the % Error for each color.

a)  Open your bag of M&Ms on a paper towel
b)  Count the M&Ms
c)  The Mars Corporation reports that a bag of milk chocolate M&Ms should contain 55 candies.  Calculate the % Error of your bag.

d)  Pick up a M&M lab resource page from Table 5
e)  Fill in the data table on the resource page.
 
**Note:  For the "accepted" column, calculate how many M&Ms of each color there should have been given the amount of candies in your bag and the color percentages the Mars Co. reports.

f)  One member from your team enters data into our class data table (on Mr. R's computer)
g)  Begin working on the "Regents Questions" on the back side of the resource page
h)  Once all teams have entered data, we will calculate the % Error for the 7 combined bags that we opened.


No Homework this weekend!  Reminder: Percent Test on Tuesday