Visual Thinking and Graphical Representation

The use of graphical systems in collaboration with visual thinking processes facilitates the generation of representations of concepts or artefacts. Graphical representations may be in the form of freehand diagrams or sketches, formal representations (orthographic projection, isometric projection, etc.), charts, schematics and three-dimensional modelling. The use of such representations serves a number of key purposes.

• Graphical representations are used to convey information that cannot easily be communicated in a verbal, non-visual manner. The representation facilitates the formation of a visual image corresponding to the original concepts depicted graphically.
  
  
• The production of graphical representations can aid the processes of thinking and problem solving through the generation and manipulation of imagery. McKim uses the term ‘graphic ideation’ to describe such activity
  
  
• Tasks that are premised on graphical representations can be developed. These tasks engage, and perhaps enhance, visual thinking skills.

Thus, a case can be made for introducing students to a range of technologies that facilitate visual thinking and communication. In particular, students engaged in learning in the areas of design & technology education will find such activities central to many learning activities that they are likely to experience.

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