Inasmuch as the ability to solve problems is at the heart of mathematics, visualization is at the heart of mathematical problem solving. Visualizing means summoning up a mental image of something – seeing it in your mind. An image may be of some geometrical shape, or of a graph or diagram, or it may be some set of symbols or some procedure. For instance, the image that comes to mind when the name trapezium is mentioned is not the image of a square, even though a square is a special case of a trapezium. That’s the orientation of the asked question….