1. A system for conveying body movements, comprising: a plurality of sensors configured to be positioned at a plurality of locations on a body; an optical capturing unit configured to sense positions of the plurality of sensors relative to a reference frame; a library of data related to body movements within discrete ranges of motion and discrete instructions associated with the body movements; a video processing component coupled to the optical capturing unit and configured to compare the positions of the plurality of sensors over a time period to at least a portion of the data in the library, to identify the body movements over the time period as within at least one of the discrete ranges of motion according to data in the library, and to select a discrete instruction associated with the body movements over the time period; and a display subsystem coupled to the video processing component and configured to display a graphic representation of the discrete instruction associated with the body movements.