As part of the Data Games project, we are researching how students record and organize multivariate data. This research is informing the design of new software interfaces for Fathom and TinkerPlots that will allow students to explore and understand data that live in other than "flat" data structures — the structures that most software tools currently limit themselves to. We have designed the Traffic Problem to explore the following questions: 1. What methods do novices and experts use to sytematically record data with multiple attributes? 2. In recording data, do students employ a recognizable notion of “case?"
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