Transcript probability22 - comptools4teachers

Karoline Thorvaldsen
Tiffany Turner
Patti Pentecost
 8th
Grade
 Probability & Statistics
 Standard:
Ohio Academic Content Standard/Probability:
Calculate the number of possible outcomes for a
situation , recognizing and accounting for when
items may occur more than once or when order is
important.
 Objectives:
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Students will understand the concept of probability
Collect data by counting possible outcomes of dice
Analyze and interpret data by using a sample set
•
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1) Make a list of topics and ideas that come to
mind when you think of “probability.” These
should include some everyday uses of probability
as well as school or mathematical uses
2) What is your definition of probability?
•
Rules:
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To accumulate points in a given round, a pair of dice is
rolled.
A player gets the total of the dice and records it in his
or her column, unless a “one” comes up.
If a “one” comes up, play is over for that round and all
the player’s points in that column are wiped out.
If “double one” come up, all points accumulated in
prior columns are wiped out as well.
If a “one” doesn’t occur, the player may choose either
to try for more points on the next roll or to stop an
keep what he or she has accumulated.
 Strategy Questions for
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Pig?
Did you have a risky strategy or did you play it safe?
If you played a couple more rounds could you see
patterns developing?
What if instead of “one” the round was over with the
summation of a “six”? Would that heighten your
probability of being wiped out?
 Work
in teams of 2.
 Each team member completes 10 rounds.
 Each round is 2 roles of the dice.
 One player roles the dice, the other player blindly
guesses if the role of the dice is odd or even.
 Record after two roles whether your partner
answered zero, one or two correct guesses.
 Change roles after ten rounds.
 Total zero, one and two correct guesses. Each
team should have a total of 20 points.
 Teams record their totals on the Smart Board.
Teams
1
2
3
4
5
6
7
8
9
TOTAL:
Zero
One
Two
 Theoretical—what should happen
 Experimental—what does happen