| Summary: | This work presents a low cost electronic panel board system, which uses a simple and common hardware in the current classes. Composed by a Webcam and a video projector, connected to a computer, the system presents the images (slides, texts etc) in a white panel or even in a wall, and it also accomplishes the capture of the movement of a pointer laser on the projected image, so that annotations done by the teacher can be immediately incorporated to the presentation. The accomplished experiments have been showing that the proposed system possibilities most dynamic classes, because the annotations done during the explanations become available for the teacher and also for their students. Although the system has revealed a big one differential in classes, it is in the distance learning that it turns of fundamental importance. Different from other systems of electronic panel board, where the teacher should stay close of the panel during the interaction with it, in the proposed system it is possible to do annotations and also access its menu at a good distance, what guarantees a larger mobility to the teacher in the classroom.
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