Sheet1

Leaf Change Table
# Students Reporting Change
100                            
95                            
90                            
85                            
80                            
75                            
70                            
65                            
60                            
55                            
50                            
45                            
40                            
35                            
30                            
25                            
20                            
15                            
10                            
5                            
0                            
Week: 1st 2nd 3rd 4th 1st 2nd 3rd 4th 1st 2nd 3rd 4th 1st 2nd
  September October November December
Legend: A = Aspen; C = Cottonwood; E = Elm; M = Maple; O = Oak; W = Willow
Instructions: In a column corresponding to a given week, enter the letter from the above Legend for the type of tree observed. Enter this letter in the row corresponding to the number of students who made
the observations. For example, in the 1st week of September, 10 students observed Aspens change colors, then enter A above 1st Week September and next to the 10.

Last Updated on 12/18/02
By David E. Wright

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