As students construct and manipulate these models, they discuss the models with others and create their own representations of the phenomena they are studying. Discussion For thousands of years, people have built models in an effort to better understand the world around them. A model embodies critical aspects or features of something while ignoring or simplifying other aspects. Models take many forms, including maps, blueprints, simulations, and diagrams. Maps have been used for thousands of years to help guide explorers over unfamiliar territory.
Blueprints help contractors and builders work together to construct a building.
Simulations help scientists and engineers verify and test aspects of systems they are building or studying. Diagrams are used in a variety of fields, from business to computers science, to help people discuss and understand the behavior or structure of systems. All these types of models take advantage of visual perception, drawing on the power of symbolic representation. Visual models allow users to supplement language, for words can sometimes be ambiguous or misunderstood. Visual elements can help people reach common ground in their communication and collaborative activities.