FIG. 2.
Distribution of students who have a given problem-solving preference, pscale, wherepscale=(expansive−limiting)/(expansive+limiting). The reflections written at the start of the course (“pre”) are shown in solid black and the reflections written at the end of the course (“post”) are shown as a striped histogram.
For the reflections that were written at the end of the semester (striped histogram in Fig. 2), the distribution of pscale changes to an even balance between limiting and expansive strategies. There are three observations comparing postsemester with presemester: there is a nearly a factor of 2 decrease in the number of students who describe a purely limited strategy (pscale=−1), the number of students who describe a mixed strategy (pscale∼0) slightly increases, and there is an increase in the number of students who describe a purely