Abstract
One important subject in basic drafting class is ensuring that the students understand drafting rules based on Japanese industrial standards. Recently, instead of hand drafting, 2D or 3D CAD has been introduced to drafting practice classes in engineering education. However, there are few reports on CAD’ s educational effects. Thus, to compare the efficacy of CAD and hand drawing, we tested two groups of students who took 2D CAD and hand drafting, respectively. First, three question forms were compared on the required time to answer; then, the judgment of understanding and mistake-searching tests were conducted. The results showed a significant difference between the two classes in the percentage of correct answers on some questionnaire items. The lecture in which the percentage of correct answers was low was improved, such that it might explain the benefit of using concrete figures. After implementing improvements in teaching methods, the final examination showed significant educational effect.
