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HCC class lecture 5 comments

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Title: HCC class lecture 5 comments


1
HCC classlecture 5 comments
John Canny2/2/05
2
Administrivia
3
Genetic domains
  • Vygotsky
  • concentrate not on the product of development
    but the very process by which higher forms (of
    thought) are established
  • Ontogenesis Psychological development of the
    individual.
  • Socio-historical Development of cultural
    practices in a society.
  • Micro-genesis Development of single
    competencies.
  • Phylogenesis Evolution of the human species.
  • Vygotsky viewed the developmental approach as
    an approach to all of psychology, not just
    development.

4
Qualitative shifts
  • The key to understanding of development is not
    just small changes, but revolutionary shifts
    which change the nature of development itself.
  • e.g. the development of speech radically changes
    how the child acquires knowledge.
  • e.g. The development of new meta-cognitive skills
    will change the learners learning from that time
    on.

5
Mediation
  • Humans rely on mediation with tools for many
    of their achievements. Language is one of these
    tools.
  • Vygotsky argued that acquisition of new
    mediational means can radically transform
    development (cause qualitative shifts).

6
Elementary Higher Mental Functions
  • Elementary (Natural) Functions directly driven
    by perception. Akin to Piagets sensori-motor
    operations.
  • Higher (Cultural) Functions Acquired by learning
    in the society. Reading, maps, numbers, charts,
    rituals,
  • The higher functions are consciously managed,
    social in nature, and use signs (language etc.)
    for mediation.

7
Socio-cultural development
  • Vygotsky himself did not take this very far, but
    it was the genesis of several very important HCI
    methods
  • Activity Theory, developed by Vygotskys own
    student Leontev
  • Peripheral participation, developed by Lave and
    Wenger years later, which lead to Communities of
    practice

8
Internalization
  • Vygotsky also argued that internalization is a
    complex process that involves creation of an
    internal conscious representation for an
    external, social reality.
  • The evolution of the concept extends well beyond
    the first appearance of the concept, i.e.
    beyond the time the child first begins to use a
    new word.

9
Discussion topics
  • What kinds of qualitative shifts have you
    encountered in your own learning? How did they
    reshape your learning?
  • Discuss the changes that happen after you
    acquire a new concept. How does that concept
    continue to develop?

10
Reading for next time
  • Applications of the last few lectures of theory
    to instruction and instructional technology (the
    NRC book)
  • Volunteer?
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