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This study aims at highlighting young children’s reasoning about human interventions within a forest ecosystem. Our focus
is particularly set on whether preschoolers are able to come up with any basic ecological interpretations of human actions
upon forest plants or animals and how. Conducting individual, semi-structured interviews with 70 preschoolers (age 4–5), we
first tested their ability to consider the forest as a habitat and recognize simple food chains in it, and then we traced
their reasoning about the consequences that human actions upon plants or certain forest animals may possibly have for other
animals that also live in the forest. The analysis of our qualitative data with “NVivo” software does reveal an ecological aspect in preschoolers’ reasoning, which is thoroughly discussed in the paper. 相似文献
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Marida Ergazaki Konstantina Saltapida Vassiliki Zogza 《Research in Science Education》2010,40(5):699-715
This paper is concerned with highlighting young children’s ideas about the nature, location and appearance of germs, as well
as their reasoning strands about germs’ ontological category and biological functions. Moreover, it is concerned with exploring
how all these could be taken into account for shaping a potentially fruitful learning environment. Conducting individual,
semi-structured interviews with 35 preschoolers (age 4.5–5.5) of public kindergartens in the broader area of Patras, we attempted
to trace their ideas about what germs are, where they may be found, whether they are good or bad and living or non-living
and how they might look like in a drawing. Moreover, children were required to attribute a series of biological functions
to dogs, chairs and germs, and finally to create a story with germs holding a key-role. The analysis of our qualitative data
within the “NVivo” software showed that the informants make a strong association of germs with health and hygiene issues,
locate germs mostly in our body and the external environment, are not familiar with the ‘good germs’-idea, and draw germs
as ‘human-like’, ‘animal-like’ or ‘abstract’ entities. Moreover, they have significant difficulties not only in employing
biological functions as criteria for classifying germs in the category of ‘living’, but also in just attributing such functions
to germs using a warrant. Finally, the shift from our findings to a 3-part learning environment aiming at supporting preschoolers
in refining their initial conceptualization of germs is thoroughly discussed in the paper. 相似文献
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This paper is part of a larger study that aims at highlighting students’ interpretations of the idea of the ‘Balance of Nature’,
as well as its use in their reasoning about the future of an ecosystem, in order to subsequently develop a learning environment
that might promote a reconsideration of its validity and usefulness. Our focus here is particularly set on whether and how
non biology-major students use this idea when making predictions about (a) the future of an ecosystem that is supposed to
have suffered a human-driven disturbance, and (b) the future of an ecosystem that is supposed to be protected against such
disturbances. Administering a questionnaire of 12 items - 4 of which concern us here - to 61 1st-year educational sciences
students at the University of Patras, we traced - among others - their reasoning about (a) the future of three ecosystems
(forest, sea, lake), supposed to have suffered different human-driven disturbances (fire, oil spill, new population introduction),
and (b) the future of a protected forest ecosystem of a national park. According to our findings, most of the students found
it very likely for a disturbed ecosystem to fully recover its initial state - mainly due to a ‘recovery process’ or inherent ‘recovery mechanisms’ - showing a strong belief in an extremely resilient ‘Balance of Nature’. Moreover, most of them appeared to believe that
if human-protected, an ecosystem will be in a continuous ‘balance’, while very few were skeptical enough to claim a non-predictable
future for it. 相似文献
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Marida Ergazaki Aspa Alexaki Chrysa Papadopoulou Marieleni Kalpakiori 《Science & Education》2014,23(2):303-323
This paper aims at exploring (a) whether preschoolers recognize that offspring share physical traits with their parents due to birth and behavioural ones due to nurture, and (b) whether they seem ready to explain shared physical traits with a ‘pre-biological’ causal model that includes the contribution of both parents and a rudimentary notion of genes. This exploration is supposed to provide evidence for our next step, which is the development of an early years’ learning environment about inheritance. Conducting individual, semi-structured interviews with 90 preschoolers (age 4.5–5.5) of four public kindergartens in Patras, we attempted to trace their reasoning about (a) whether and why offspring share physical and behavioural traits with parents and (b) which mechanism could better explain the shared physical traits. The probes were a modified six-case version of Solomon et al. (Child Dev 67:151–171, 1996) ‘adoption task, as well as a three-case task based on Springer’s (Child Dev 66:547–558, 1995) ‘mechanism task’ and on Solomon and Johnson’s (Br J Dev Psychol 18(1):81–96, 2000) idea of genes as a ‘conceptual placeholder’. The qualitative and quantitative analysis of the interviews showed overlapping reasoning about the origin of physical and behavioural family resemblance. Nevertheless, we did trace the ‘birth-driven’ argument for the attribution of the offspring’s physical traits to the biological parents, as well as a preference for the ‘pre-biological’ model that introduces a rudimentary idea of genes in order to explain shared physical traits between parents and offspring. The findings of the study and the educational implications are thoroughly discussed. 相似文献
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Marida Ergazaki Eftychia Valanidou Maria-Christina Kasimati Mara Kalantzi 《International Journal of Science Education》2013,35(18):3118-3142
This paper reports on a mixed-model case study of designing and implementing a constructivist teaching intervention about reproduction and physical family resemblance for young children. The objective of the study was to explore whether the ways that preschoolers reason about the resemblance between offspring and parents can be improved with a teaching intervention that introduces a rudimentary idea of genes through reproduction. The participants were 60 preschoolers (age 5–5.5 years) from public kindergartens of Patras. The qualitative analysis of their pre- and post semi-structured interviews showed a remarkable improvement in their reasoning, which was found to be statistically significant as well. After the three-part teaching intervention, children appeared to recognize the biological contribution of both parents to a child's creation. Moreover, most of them appeared able to attribute a child's species and body traits to the parental genes passed to the child through reproduction and not to the parents’ or child's intention. 相似文献
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Science & Education - This article reports on the theoretical output of a design research study, which concerns the design of a learning environment (LE) for helping students challenge the... 相似文献
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Marida Ergazaki Vassilis Komis Vassiliki Zogza 《International Journal of Science Education》2013,35(8):909-933
This paper highlights specific aspects of high‐school students’ reasoning while coping with a modeling task of plant growth in a computer‐supported educational environment. It is particularly concerned with the modeling levels (‘macro‐phenomenological’ and ‘micro‐conceptual’ level) activated by peers while exploring plant growth and with their ability to shift between or within these levels. The focus is on the types of reasoning developed in the modeling process, as well as on the reasoning coherence around the central concept of plant growth. The findings of the study show that a significant proportion of the 18 participating dyads perform modeling on both levels, while their ability to shift between them as well as between the various elements of the ‘micro‐conceptual’ level is rather constrained. Furthermore, the reasoning types identified in peers’ modeling process are ‘convergent’, ‘serial’, ‘linked’ and ‘convergent attached’, with the first type being the most frequent. Finally, a significant part of the participating dyads display a satisfactory degree of reasoning ‘coherence’, performing their task committed to the main objective of exploring plant growth. Teaching implications of the findings are also discussed. 相似文献
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