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  • Articles  (4)
  • conceptual change  (3)
  • Chemistry
  • Lepidoptera
  • Springer  (4)
  • NOAA/National Centers for Coastal Ocean Science
  • Singapore
  • 1995-1999  (4)
  • Natural Sciences in General  (4)
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  • Articles  (4)
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  • Springer  (4)
  • NOAA/National Centers for Coastal Ocean Science
  • Singapore
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Foundations of science 4 (1999), S. 133-153 
    ISSN: 1572-8471
    Keywords: conceptual change ; negation ; falsification ; conventionalism ; diagnostic reasoning
    Source: Springer Online Journal Archives 1860-2000
    Topics: Natural Sciences in General
    Notes: Abstract There has been little research into the weak kindsof negating hypotheses. Hypotheses may be unfalsifiable. In this case it is impossible tofind a contradiction in some area of the conceptualsystems in which they are incorporated.Notwithstanding this fact, it is sometimes necessaryto construct ways of rejecting the unfalsifiablehypothesis at hand by resorting to some external forms of negation, external because wewant to avoid any arbitrary and subjectiveelimination, which would be rationally orepistemologically unjustified. I will consider akind of ``weak'' (unfalsifiable) hypotheses that arehard to negate and the ways for making it easy. Inthese cases the subject can ``rationally'' decide towithdraw his hypotheses even in contexts where it is``impossible'' to find ``explicit'' contradictions: theuse of negation as failure (an interestingtechnique for negating hypotheses and accessing newones suggested by artificial intelligence) isilluminating. I plan to explore whether this kind ofnegation can be employed to model hypothesiswithdrawal in Poincaré's conventionalism of theprinciples of physics and in Freudian analyticreasoning.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of science education and technology 8 (1999), S. 83-91 
    ISSN: 1573-1839
    Keywords: conceptual change ; misconceptions ; microscopic views of phase change ; analogy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Natural Sciences in General , Technology
    Notes: Abstract This study was conducted to examine the effectiveness of an analogy activity, which was designed to overcome junior high students' misconceptions about the microscopic views of phase change. Eighty Taiwanese 8th graders were randomly assigned to either a control group or an experimental group. For the control group, the subjects were instructed through traditional teaching whereas for the experimental group, an analogy activity was conducted on students. This specific analogy activity was presented in the form of role-playing in which students acted as particles and worked together to perform the conditions of phase changes. Through analyzing these students' drawings of the atom arrangements for the three states of some substances, it was found that the students of experimental group, though in many cases, did not perform statistically better than did those of control group in an immediate posttest. The comparisons of a delay test between these two groups indicated that the analogy activity had clearly positive impacts on students' conceptual change on these scientific concepts in terms of long-term observations.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of science education and technology 7 (1998), S. 149-161 
    ISSN: 1573-1839
    Keywords: Student researchers ; student conceptions ; conceptual change ; student scientist partnerships (SSPs) ; authentic science
    Source: Springer Online Journal Archives 1860-2000
    Topics: Natural Sciences in General , Technology
    Notes: Abstract A research effort between science educators at the University of New Hampshire and Valley High School (pseudonym) was initiated to examine the conceptual development of high school students' understanding of scientific research over an entire school year. Students were involved in a series of classroom projects that were guided by curricula designed to foster “student scientist partnerships” (SSPs). Data for this research consist of audio-recorded, semi-structured student interviews which were transcribed verbatim. Seven students were interviewed six times over the school year. A content analysis of the transcripts was performed and the results were compared to a model of scientific research developed for the purpose of this study. This model comprises the major phases of the scientific enterprise, including the development of researchable questions, data collection, data analysis, drawing of conclusions, and communication of results. Results indicate that students' conceptual understanding of scientific research rarely evolved over the course of the year, remaining rudimentary. Students had uniformed notions of scientific questioning, viewed data collection as only following prescribed steps and ultimately repetitive, and had little experience with data analysis or the communication of scientific findings. Critical factors contributing to these student perceptions were insufficient exposure, a lack of a sense of partnership by students, and the design of the SSP.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of science education and technology 5 (1996), S. 193-201 
    ISSN: 1573-1839
    Keywords: Chemistry ; chemistry education ; multiple intelligences ; imagery ; visual-spatial thinking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Natural Sciences in General , Technology
    Notes: Abstract Chemistry has evolved from a science dominated by mathematics into a science highly dependent on spatial-visual intelligence. Yet the chemical content of introductory courses remains taught essentially the same as 40–50 years ago. Chemistry, today, is recognized by chemists as the molecular science. Yet, school chemistry is alienated from that perception. Thanks to the computer, young people are more comfortable with visual imaging than their instructors were at the same age. Thus the time is rife to reinvigorate chemistry education by means of the visual-spatial approach, an approach wholly in conformance with the way modern chemistry is thought about and practiced.
    Type of Medium: Electronic Resource
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