In learner-centred methods, the teacher/instructor is both a teacher and a learner at the same time. In the words of Lawrence Stenhouse, the teacher plays a dual role as a learner as well âso that in his classroom extends rather than constricts his intellectual horizonsâ.
Two-point perspective has one set of lines parallel to the picture plane and two sets oblique to it. Parallel lines oblique to the picture plane converge to a vanishing point, which means that this set-up will require two vanishing points. Walls in 2-point perspective, converging toward two vanishing points.
All edges parallel to the ground plane will have a vanishing point at the same level as the central vanishing point. In fact, all these vanishing points will be in the line of the horizon. Particular examples of such lines are those connecting the corners of a square grid projected in perspective (Fig. 2).