Abstract
Some young engineers and students who were educated after the development of computer technology are convinced that findings based on computer-aided engineering (CAE) are equally valid as those obtained in real life, because they have little experience of physical phenomenon. We consider the construction of "waribashi bridges" and "taketombos" as examples of PBL(problem-based learning) projects to correct the discrepancy between real-life experience and virtual experience. That they make a waribashi bridge and taketombo with a knife supplements their shortage of a physical experience, and making the taketombo from NC machine improves their knowledge. Through these projects, students recognized the usefulness of 3D-CAD(computer-aided design) and CAE for engineering design, the limits to the applicability of CAE, and the importance of observing actual phenomena.
