PHYSICS PROBLEM SOLVING

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one data set (the videotapes of the 14 groups) and one data analysis method (the coded
transcripts and flowcharts). I will, however, attempt whenever possible to view
important findings from multiple vantage points. There are four of these vantage points,
or as I will call them, “reference points.” These reference points are the videotapes,
written problem solutions, quantitative data, and subjective opinions based on viewing
the videotapes. Figure 1-2 (page 23) illustrates this idea.
One specific analysis technique that will become apparent is that one set of four
group solutions continually revealed new insights into the groups’ argument construction
processes. Before a new analysis idea was introduced or an new analysis tool applied to
all 14 groups, it was first applied to groups 4A, 4B, 4C, and 4D. That is, the system was
fined tuned on the four groups. This was done to promote “internal validity,” or
consistency of the analysis method.
Videotapes Written Solutions
QuantiDatatative Subjective Reading
Viewingand
"TriSoangulurcesation"
Figure 1-2. Four Points of Reference.