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.
The Vertex axis is a point of energy derived from the intersection of the Prime Vertical and the Ecliptic. The West side of this point is called the Vertex, the East side is called the Anti-Vertex. The Ascendant-Descendant axis is found by the points of intersection of the Great Circles of the Ecliptic and Horizon.