In this study, we clarified that there are differences in the perception of space, between SB-modeling CAD and sketches (hand drawing). Also we analyzed that there are differences in the perception of space, between students whose projects were higher evaluated (a higher group) and those whose projects were not (a middle and lower group). As a result, by using CAD instead of sketching, the students is better able to control spaces in imaginary spaces with various behavior settings. CAD is also an effective tool for perceiving space for a student who is a beginner in architectural design. In using CAD, differences occur in accordance with the degree of advancement of the student. Through CAD it is expected that we can give students practice in using visual operation early in the design process thereby achieving their more effective training.
