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.
To find the punctum proximum of convergence, the measure is drawn out to about 70 cm., its case being held beside one of the eyes of the patient, while the object of fixation is placed in the median line. of the case the spring rolls up the tape, and the fixation object is brought nearer the eye.