Research in Engineering Education Symposium 2011 - rees2009

Universidad Politécnica de Madrid (UPM) Página 90 de 957
Results & Discussion
Table 1: Rubric categories and codes
A large number of codes emerged from the student pre and post data. At this preliminary
stage of our study, we decided to be prudent and retain all codes in an effort to not
overlook codes that may prove in the future to provide valuable insight into students’ uses
of models. Figure 1 displays the pre and post results. Pre-survey results identified
feasibility as the most sited use of models. Over twenty percent of students also sited
visualization, understanding the solution, improvement, and testing performance. After
the modeling intervention, student conceptions cited feasibility, visualization,
understanding the solution, and improvement less. Testing performance increased, while
cost consideration, time management, and prediction became pertinent. None of the
remaining categories were cited more than 17% for either the pre or post survey.
Proceedings of Research in Engineering Education Symposium 2011
Madrid, 4 th - 7 th October 2011