Project your documents (or objects) in the Lecture Theatre. Show your working and annontations on the big screen.
A visualiser or document camera is a real-time image capture device for displaying an object to a large audience. Like an overhead projector, a document camera is able to magnify and project the images of actual, three-dimensional objects, as well as transparencies. This allows a teacher, lecturer or presenter to write on a sheet of paper or to display a two or three-dimensional object while the audience watches. Annotate your notes as you lecture!