Freehand sketching of orthographics and isometrics is important for concept generation, teamwork, and improving one’s spatial visualization skills. However, many students are not confident with their freehand drawing and their poor spatial visualization skills makes it difficult for them to learn CAD. We have developed at UC San Diego an iPad App that teaches sketching. Students perform assigned orthographic and isometrics on the touchscreen, and the App automatically grades their work. Students become engaged with the immediate feedback, and can receive hints when they are stuck. The App allows students to work at their own pace, and instructors can see in the assignment log which students need more help. I will bring 20 iPads for the workshop, so attendees can have a hands-on experience with the App. The App will be available on Android, Windows, Chrome, and iOS in summer 2017.
