U-shaped development

U-shaped development, also known as U-shaped learning, is the typical pattern by which select physical, artistic, and cognitive skills are developed.[1] It is called “U” shape development because of the shape of the letter U in correlation to a graph, skills developed in the “U shaped” fashion begin on a high position on a graph's Y-axis. The skills start out at a high performance level and over time the skills descend to a lower position on the Y-axis. After another period of time the skill once again ascends to a higher position on the y-axis. A U-shaped time line is created of the skills development.[2] U-shaped development can be seen in cognitive skills such as learning new words, or doing high-level algorithms in mathematics. The skill can also be artistic such as painting or playing a musical instrument, and physical skills such a walking and weight lifting.[3]

The two blue lines are the start and stop of one "U" Graph segment

Artistic skill development

This U-shaped curve is different from the other types of skill development because this skill has an artistic rating with it, which means there could be differences in opinion, but in studies where children, adult artists, and non-artist adults were all given the same directions to draw a self portrait, the children's and the artists' were the closest of the three to depicting the face when picked by an outside group.[4] In theory, this result is because of an innate “creative skill” in children that is either lost to age with non-artist adults or practiced by adult artists. In artists the Y-axis would be the “creative skill”, and the X-axis would be time, but in non artists the U-shaped curve would not apply.[4]

Physical skill development

The U-shaped development in physical skill comes from the development and recession of muscular strength, on the graph the Y-axis is muscular strength and the X-axis is time. Muscular strength develops and recedes over time because of necessity; one example of this is a baby learning to walk.[1] The baby will gain the strength in its legs to be able to support itself and walk (which is the left top of the “U”), but it then grows larger, and the strength in its legs becomes less than required to support itself (the bottom of the “U”), but then the baby's leg strength increases again which gives it the ability to support itself again (the right top of the “U”).[1]

Cognitive skill development

This developmental curve reflects the progression of intuitive thinking processes as a person develops more advanced knowledge structures in a specific area.[5] The shape of the curve reflects the variability of general intuitional availability.This means once intuition levels increase but also s/he can make more higher order intuitive connections/understandings given a corresponding increase in expertise.[1] In this graph the axes would be availability of intuition (being th Y-axis) and level of expertise (being the X-axis), instead of the skill level (being the Y-axis) and time (being the X-axis). The “U” curve represents two different types of intuition: which are referred to as immature intuition(the top left of the "U") and mature intuition (the top right of the "U").[5]

Other theories

There have been other human development theories in the past such as

There are branch theories that relate to these theories and the theories have different notions on how environmental stimuli change a person, but none dismiss or disprove the U-shaped development theory.[1]

See also

References

  1. ^ a b c d e Gershkoff-Stowe, Lisa; Thelen, Esther (February 2004). "U-Shaped Changes in Behavior: A Dynamic Systems Perspective". Journal of Cognition and Development. 5 (1): 11–36, 26. doi:10.1207/s15327647jcd0501_2.
  2. ^ McNeil, Nicole M. (2007). "U-Shaped Development in Math: 7-Year-Olds Outperform 9-Year-Olds on". Developmental Psychology. 43 (3): 687–695. doi:10.1037/0012-1649.43.3.687. PMID 17484580.
  3. ^ Davis, Jessica (1997). "Drawing's Demise: U-Shaped Development in Graphic Symbolization". Studies in Art Education. 38 (3): 137–152. doi:10.2307/1320290. JSTOR 1320290.
  4. ^ a b Haanstra, Folkert; Damen, Marie-Louise; Van Hoorn, Marjo (Summer 2011). "The U-Shaped Curve in the Low Countries: A Replication Study". Visual Arts Research. 37 (72): 16–29. doi:10.5406/visuartsrese.37.1.0016.
  5. ^ a b Baylor, Amy L. (December 2001). "A U-shaped model for the development of intuition by level of expertise". New Ideas in Psychology. 19 (3): 237–244. doi:10.1016/S0732-118X(01)00005-8.
  6. ^ a b c Smith, M.K. "'Learning theory', the encyclopedia of informal education". George Williams College. Retrieved 2011-11-28.

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