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Finding the Mean
11/15/12
Learning Target
I can explain and find the
mean of numbers.
Progression Of Learning
“I can define mean.”
“I can show how I use addition to find
the mean.”
“I can show how I use division to find
the mean.”
Word Bank
Mean -The Average of a number
of different amounts.
How It Works
When you get a set of numbers:
 1,2,3,4,5,6,7,8,9
 1st - you need to:
Add up all numbers
1+2+3+4+5+6+7+8+9=
45
How It Works
 2nd - Divide the total by how
many numbers you are given.
 45 ÷ 9 = 5
Prices of Toms at The Mall
Price
$20
$20
$20
$25
$25
$35
60
75
55
60
40