You’ve all participated in what is called a random walk.
At the beginning, you thought only about yourself; but now you have seen what happened when a large group of people did it, and the bar graph (histogram) that resulted. What were some of your noticings and wonderings about the human bar graph we created? Record them on your handout and then share them with a partner.
Circulate around the room to read what students have written and listen to their discussions. Students may be curious as to why so few students arrived on the far ends, or why the shape of the bar graph was symmetric (or not). Students may be curious why everyone didn’t arrive back where they started, given that there is a 50-50 chance of moving forward or back. Share some of students’ wonderings with the larger group.
All of you were behaving randomly, and independently of each other. Yet you have noticed some structure in the results of a large group trip. Now we’re going to do some analysis. To study what happened and investigate the questions you have posed, we’re going to look at what we will call a “4-Flip Trip” – a four-step random walk.
You’ve all participated in what is called a random walk.At the beginning, you thought only about yourself; but now you have seen what happened when a large group of people did it, and the bar graph (histogram) that resulted. What were some of your noticings and wonderings about the human bar graph we created? Record them on your handout and then share them with a partner.Circulate around the room to read what students have written and listen to their discussions. Students may be curious as to why so few students arrived on the far ends, or why the shape of the bar graph was symmetric (or not). Students may be curious why everyone didn’t arrive back where they started, given that there is a 50-50 chance of moving forward or back. Share some of students’ wonderings with the larger group.All of you were behaving randomly, and independently of each other. Yet you have noticed some structure in the results of a large group trip. Now we’re going to do some analysis. To study what happened and investigate the questions you have posed, we’re going to look at what we will call a “4-Flip Trip” – a four-step random walk.
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