Guess My Sequence Rule

Procedure

• Read the directions at the top of the green worksheet.

• Write a sequence of 3 number in the left column

• I will come around and indicate whether or not this follows my rule

• Keep guessing and testing until you are sure that you know my rule

Possible Biased SequenceSequence Fits the

Instructor’s Rule

Guess The Instructor’s Rule

How Sure? ______%

2,4,6 Counting up by 2’s

50%

6,8,10 Counting up by 2’s

60%

20,22,24 Counting up by 2’s

70%

3,5,7, Counting up by 2’s

80%

25,27,29 Counting up by 2’s

90%

200,202,204 Counting up by 2’s

100%

An Un-biased SequenceSequence Fits the

Instructor’s Rule

Guess The Instructor’s Rule

How Sure? ______%

2,4,6 Counting up by 2’s

50%

10, 20, 30 Counting up by multiple

60%

100, 500, 894

Counting up with even numbers

70%

1,9, 20 Counting up 80%27, 13, 4 Counting up 90%55, 2, 999 Counting up 100%

Confirmation Bias

• the tendency of people to favor information that confirms their beliefs or hypotheses