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Title |
Ανάπτυξη Διδασκαλίας Νανοτεχνολογίας στη Δευτεροβάθμια Εκπαίδευση Μελέτη Οπτικών Ιδιοτήτων - Αλλαγή Χρώματος στην Νανοκλίμακα |
Alternative Title |
Development of Teaching Material for Nanotechnology in Secondary Education Study of Optical Properties - Color Change at the Nanoscale |
Author
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Βεναρδάτου, Σοφία
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Thesis advisor
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Σταύρου, Δημήτρης
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Reviewer
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Παπαδάκης, Ιωσήφ
Μιχαηλίδη, Αικατερίνη-Αιμιλία
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Abstract |
In recent years, Nanoscience and Nanotechnology (NET) have become important
scientific fields of study. The term Nanoscale refers to objects (Nanomaterials) with
dimensions ranging from 1 to 100 nanometers (10−9 𝑚) in at least one of their dimensions.
Nanomaterials present new and often unexpected properties on which many innovative
applications are based. The development of Nanoscience and Nanotechnology (NET) and
their ever-increasing penetration into our daily lives push the integration of their aspects
in compulsory education.
The purpose of this dissertation was the development of teaching material on the subject
of changing the optical properties of materials in the Nanoscale using analogies. The
possibility of integrating aspects of NET in secondary education is also being studied.
In the present dissertation, the model of "Educational Reconstruction - MER" was used
as a theoretical framework. This model offers a feedback interaction between: (a) the
analysis of the structure of scientific content from a didactic point of view, (b) empirical
research on students' perceptions and learning processes, and (c) the design of learning
environments. Applying the MER on a High School environment, two fundamental notions
were studied. First the perceptions of high school students about the change of color in
nanogold solutions were investigated and last the learning processes of students towards
the acquisition of scientific knowledge.
The empirical research involved students of the 2nd Lyceum of Souda was organized in
two axes. The first axis was the creation and elaboration of a preliminary open
questionnaire recording the students' perceptions (prequestionnaire): (a) for the
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Nanoscale sizes, (b) for the properties of the materials, (c) the conditions under which the
properties change and (d) the use of Nanotechnology in everyday life. The second and
central axis of the research was the development of the didactic unit for the change of
optical properties (color) in the Nanoscale and the recording of students' perceptions. Pptx
presentations, audiovisual material (video) reproduction, analogies and experimental
activities were used as teaching aids.
In conclusion, the research shows the following: The students who encountered
Nanoscience and Nanotechnology (NET) acquired a positive attitude towards it. The
students, while initially they did not think that size affects the properties of materials,
modified this view, finally arguing that the change in color (optical property) of a material
may be due to a change in its size or shape at the Nanoscale. Finally, it seems that the use
of analogy in the experimental activities developed as part of the teaching helped most
students to explain the different behavior of the materials (color change) based on their
size and shape. The research gave encouraging results for future integration of other
aspects of NET in compulsory education.
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Language |
Greek |
Subject |
Change of size-dependent optical properties (color) |
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Model of educational reconstruction |
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Nanoscience Nanotechnology (NET) in Secondary Education |
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Use of analogies in teaching |
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Αλλαγή οπτικών ιδιοτήτων με βάση το μέγεθος (χρώμα) |
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Μοντέλο διδακτικής αναδόμησης |
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Νανοεπιστήμη Νανοτεχνολογία (ΝΕΤ) στην Δευτεροβάθμια Εκπαίδευση |
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Χρήση αναλογιών στην διδασκαλία |
Issue date |
2021-03-24 |
Collection
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School/Department--School of Sciences and Engineering--Department of Physics--Graduate theses
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Type of Work--Graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/2/4/7/metadata-dlib-1615462873-912535-30328.tkl
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Views |
1022 |