Abstract
AbstractUndergraduate computer‐aided design (CAD) courses can have large enrollments, making it difficult for instructors to thoroughly assess each student's assignments and provide individualized feedback. While in some subject areas textbook companies are developing online platforms that adapt problem sets to meet each individual student's needs, there has been apparently little attention to the area of individualized CAD instruction. This paper presents a program that compares students’ two‐dimensional CAD drawings to a solution, computes the number of missing or erroneous features in each student's drawing, and generates a visual comparison of each student's drawing with the solution. The system is implemented both as an offline version for batch processing and an online version for immediate student feedback on assignments. While the system lacks the “smartness” of a human grader, the offline version substantially reduces time spent grading exams and improves grading accuracy and consistency, and the online version encourages students to focus on important details of drawing and provides immediate online feedback for students as they complete assignments, as well as providing after‐the‐fact feedback on exams.
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