martes, 26 de febrero de 2019

Metaphors, resources for quality education. A lesson by Richard Feynman

Metaphors, resources for quality education. A lesson by Richard Feynman

The word metaphor comes from the Latin "metaphora" and this, in turn, from a Greek word translated in Spanish as "translation". It is the application of a concept or an expression about an idea or an object to which it does not describe directly, to suggest a comparison with another element and facilitate its understanding. The metaphor is an allegorical element, it manifests something that is not being said, but that can be intuited and understood through reason and the association of concepts. Aristotle defined metaphors as a comparison between two or several entities that at first glance are different; and affirmed that the human capacity to generate metaphors left in evidence the power of the mind.

Examples To praise the beauty of a lady, "Those two emeralds that her eyes had shone on her face". Or when, the balance makes us think of justice by associating both elements, which balance and allow harmony. Or, "When in a storm, a bamboo is able to bend without breaking, and return to its upright position, once the storm has passed, but strengthened from it, that is resilience."



In poetics it occupies a place similar to that of comparisons, but it is incomplete since it does not directly mention the object or element to which it wishes to refer. There are two types of metaphor, the pure and the impure. In the impure metaphor both terms appear, the real and the evoked; it is also called "in praesentia" or image. In pure metaphor the real term does not appear, but only the metaphorical, and is used to direct attention to the signifier or to give an aspect unknown to the everyday.

In the field of education, the use of metaphors is justified when it is stated that "metaphors and nearby concepts, like similes and analogies, have been used as teaching mechanisms since the early days of civilization." The metaphor of Plato's cave is a clear example. Also, "the widespread use of metaphors in the teaching texts of early times suggests that the metaphor is more than a simple stylistic instrument for literary use (...) the metaphor is an essential ingredient of communication, and therefore of a remarkable educational value "(Rodríguez, s / f, p 225)

The metaphor defined as a speech figure, with which the meaning of a term or phrase is transferred from the object usually designated to another object to which it provides a new intuition or perspective, acquires a broader meaning, since it can also " designate a process by means of which the meaning and relationships of a theory or model can be used to suggest meaning or relationships in another domain ". The extension to the field of theories or models implies something more than the substitution of a series of concepts for other equivalents, in which the situation of semantic equivalence is presented (Rodríguez, s / f, p.226)



In the early 1960s, a physics professor at the California Institute of Technology (Caltech) taught a full course to a growing audience. He was not just any teacher, he was a great teacher and he explained the most difficult things, "The Great Explainer". Privileged mind of the twentieth century and key in the history of theoretical physics. Richard Phillips Feynman was a New York theoretical physicist, mathematician, Nobel Prize winner, educator, disseminator, writer, showman, comedian, cartoonist, synesthetic, expert in safes and excellent Brazilian percussionist. In each session, Feynman displayed his enormous pedagogical and communicative capacity to expose in the simplest way very complex physical concepts.

In his book "The Character of the Physical Law", the great Feynman offers a beautiful metaphor: nature is comparable to a colossal game of chess. When you look at the game (= reality is observed) you can discover the rules of the game (= the fundamental laws of nature). The scientist is the observer or spectator.



The analogy with the development of natural events and the game of chess is a dynamic metaphor. Incredible, not only shows the similarity in a moment, but any time this similarity is revealed. During a real process, nature jumps from one state to another. The new state is one of many compatible with the laws of nature. The selection, fundamental or natural, is the one that decides and the criterion is the stability (to continue in scene, to be) or the survival (to continue alive). Is not chess the same? In general, the laws of nature (or the rules of chess) do not oblige, they only prohibit. Nature has intrinsic right to a dose of contingency; as a margin for selection, and in it lies the creativity of biological evolution, that of the chess player.

The player believes that he invents a winning game or chess move when in fact, he has only chosen one of the 10 raised to the 100,000 possible games. The efficiency does not hurt either. Natural processes tend to minimize energy, the chess player who can win in two moves does not do so in three.

Two other situations in which Feynman reveals his talent for metaphors are:

1) The use of the famous Feynman diagrams to visually show the mathematical mechanism of the interaction of particles in space and time. The technique of Feynman diagrams has influenced the way physicists work.

2) The suggestion so that all the scientists of the Manhattan project that developed the atomic bomb, will perform calculations in parallel. A grain of sand does not do anything, millions of grains dragged by the waves tear the strongest rocks. Feynman said that, instead of spending nine months to solve 3 major problems, they could now solve nine major problems in three months. Absolute genius when creating parallel computing.



References

DEFINICIÓN DE METÁFORA

LAS METÁFORAS EN LA ENSEÑANZA JOSÉ LUIS RODRÍGUEZ DIÉGUEZ

La Metáfora como Medio de Enseñanza, lunes, octubre 15, 2012

Variaciones sobre una metáfora de Feynman, JORGE WAGENSBERG, 10 MAR 2004
https://elpais.com/diario/2004/03/10/futuro/1078873205_850215.html

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