classes:  lecturer. teaching each part, drawing each circuit and explaining rather than explaining the whole figure chapter 4 doubledot datapath.  curriculum. teaching each part, drawing each circuit and explaining rather than explaining the whole figure chapter 4 doubledot datapath.  facility. teaching each part, drawing each circuit and explaining rather than explaining the whole figure chapter 4 doubledot datapath.  general. teaching each part, drawing each circuit and explaining rather than explaining the whole figure chapter 4 doubledot datapath.