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The Power of Metaphors in Enhancing Cognitive Processing in Computing

Metaphors serve as vital tools for thought, crucial in extending our cognitive capacities. They encapsulate three main aspects: compactness, vividness, and inexpressibility. Effective metaphors must be complete, coherent, concrete, conceptual, correct, and considerate, ensuring learners can grasp complex ideas easily. The relationship between metaphors and computing is exemplified in concepts like the "desktop" and "walled garden," which illustrate how linguistic tools influence understanding and cognitive processing in technology. Metaphors, therefore, play a fundamental role in effective communication in the digital realm.

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The Power of Metaphors in Enhancing Cognitive Processing in Computing

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  1. Metaphors we compute by...

  2. Hammer, eye glass and... • the metaphor acts as a tool • the metaphor is a tool for thought • the metaphor is a means of extending our cognitive capacity

  3. Three aspects of metaphors • Compactness • Vividness • Inexpressibility >>>

  4. Metaphoric terms • The model • The product • The tension

  5. Linearity and the metaphor • The metaphor as a speech act • The constructivist would say… • The behaviourist would say…

  6. Metaphor characteristics • complete - the totality of the product should be represented by elements in the model Based upon the work of Mayer (1989) the following characteristics are indicators of an effective metaphor: complete, coherent, concrete, conceptual, correct and considerate. • coherent - the level of detail should be appropriate to the needs of the learners • concrete - the structures and actions of the metaphor should be obvious to the learner • conceptual - the underlying concepts should be clear • correct - where a tension exists this should be clarified • considerate - the metaphor should use appropriate vocabulary and representation

  7. Desktop, Director and the walled garden • The computer screen is the desktop • I would like to consider a slightly more narrow metaphor adopted by a leading software company Macromedia • The Walled Garden

  8. Close • The metaphor is a linguistic tool that has moved from linguistics to pragmatics • The ‘product’ based upon the ‘model’ enables better cognitive processing • Metaphors relate to compactness, vividness and inexpressibility • The metaphor is popular in the world of computing

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