Ferramentas de ensino na conceituação da nanotecnologia na educação básica
Abstract
TEACHING TOOLS IN THE CONCEPT OF NANOTECHNOLOGY IN BASIC EDUCATION.
Nanotechnology has a high impact on people's quality of life, being present in the
development of clean energy, more efficient mobile devices, the treatment of diseases, the
production of prosthetics, cosmetics, pharmaceuticals, among others. However, the clarity
and understanding with which this topic has been discussed in the media is questioned, so
the aim is to clarify whether this knowledge is being announced to students in a way that is
dissociated from their reality. It is also clear that despite the large amount of information
available, quality is sometimes lacking in its preparation, failing to highlight fundamental
points, such as its definition, impacts and relevance for the development of society.
Therefore, through this work, it is proposed to apply a didactic sequence to a class of high
school students from a public school in São Paulo, in order to verify their level of knowledge
and familiarity with the topic of N&N, and also, teach basic and fundamental concepts
regarding nanometric materials, their benefits and risks, advantages and disadvantages of
their applications, seeking to encourage the development of a critical opinion based on
scientific knowledge. To achieve this, this sequence was carried out in four classes, the first
being a diagnostic assessment and debate, the second a demonstrative experimental
practice, the third constitutes a presentation of student seminars on N&N applications, and
the fourth was a final questionnaire on the content covered in the classes taught. It was
concluded that students' knowledge about nanotechnology and nanoscience is still
superficial, despite the profusion of currently existing technological applications and their
dissemination in the media. Furthermore, there is a lack of cohesion in the writing and
interpretation of texts in their responses and there is great difficulty in assimilating associated
chemical concepts, so that a greater focus in future work on reading and the development of
formal and chemical writing is suggested.
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