A necessary consideration in the development or expansion of courses incorporating techniques such as geographic information systems (GIS) is the establishment of the infrastructure to support such instruction. Planning for the practical application of knowledge involves the determination of hardware, software, data and personnel needs.
Continuity: the tendency to perceive things as simply as possible with a continuous pattern rather than with a complex, broken-up pattern o Contiguity: the tendency to perceive 2 things that happen close together in time as being related Rods and cones, which one is less or more light/color sensitive?
For example, we perceive the pattern below as two lines crossing rather than as two angles joined at their apexes (Pettersson, 1989, p 71). Keeping the law of continuity in mind means that making sure that you guide the learner's eye. Note, how, in the instructional message below, the principle of continuity guides your eye and explains why we see the images on the left as one rather than five separate things: Five Laws of Perception.