| 摘要 |
A system for recording and presenting a playback of a student's scratch work comprises a question, an answer area and a scratch area that may be presented on a digital tablet computer. A stylus is provided and the motions of the stylus are recorded while a student answers the questions. Both writing and erasing are recorded. The recorded motions can be played back by a teacher or parent to determine not only if a question was answered correctly based on the writing in the answer area, but how a question was answered based on writing in the scratch area. Intermediate answers can be seen since all of the writing and erasing is played back. Erasing can be presented as a light color so that the existence completely erased intermediate work can be identified from a final image of the student's answers. |
