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Course Level Date Clip# Line Interlocutor Content
Talkbank - - 20 71 T we're going to simulate an experiment here whereby we have to find out how many chocolate chips I've got to put into a mixture to create six cookies
Talkbank - - 20 72 UNK %xNRC:Australia does not have a national mathematics curriculum. Each State and Territory has its own curriculum, typically consisting of five content strands: Space, Number, Measurement, Chance and Data, and Algebra. Simulation activities such as this "chocolate chip cookies" activity, with the emphasis on summarizing, displaying and interpreting data, are a popular means of "contextualizing" chance and data work.
Talkbank - - 20 73 UNK %xRES:Here the teacher provides a goal statement, telling the students that they are going to work on a simulation exercise that is related to their study of statistics. Goal statements were found in 71% of the lessons in the Australian data set (Video Report, figure 3.12).
Talkbank - - 20 74 UNK %xTEA:Although this lesson was primarily designed to once again expose the students to another means of statistical display (box-and-whisker plots) and to have further practice in creating a Five Number Summary, it was a good way to show the students how simulation could be used to assist in the solving of a mathematical problem.
Talkbank - - 20 75 T which you have on that sheet that I've given you (.) so that I can be pretty sure that each cookie is going to end up with at least three, yes?
Talkbank - - 20 76 T now, anyone got any ideas as to how many chocolate chips I would have to put into my mixture so that I would end up with at least three in each cookie?
Talkbank - - 20 77 SN eighteen?
Talkbank - - 20 78 T eighteen.
Talkbank - - 20 79 T what about if I had eighteen (.) now, they're mixed up in this mixture for the six cookies (.) are you sure that each time you scoop out some of that mixture, you're gonna get three?
Talkbank - - 20 80 T so you you're riding on the bare minimum there, aren't you?
Talkbank - - 20 81 T you're hoping you're hoping that you're going to get three each scoop.
Talkbank - - 20 82 T what we're going to do is this little simulation exercise and it's just to gather some statistical data so we can carry on with our statistics.
Talkbank - - 20 83 T you're gonna work in pairs.
Talkbank - - 20 84 T one person's going to roll the dice.
Talkbank - - 20 85 T the number of the dice indicates the cookie (.) and your cookies are numbered one to six.
Talkbank - - 20 86 T for example if I rolled a five that means I've got one chocolate chip for cookie number five.
Talkbank - - 20 87 T you're going to have to roll the dice sufficient times to end up with a minimum of three chocolate chips in each cookie.
Talkbank - - 20 88 T do you understand?
Talkbank - - 20 89 SS yeah.
Talkbank - - 20 90 T okay.