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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A contextualiza??o do ensino de qu?mica no curso t?cnico em agropecu?ria utilizando a aduba??o do guaranazeiro (Paul?nia cupana var. sorbilis) como tema integrador. / The contextualization of Chemistry teaching in Technical Course in Agriculture using the fertilization of guaranazeiro (Paul?nia cupana var. sorbilis) as an integrating theme

Oliveira, Luiz Ant?nio Tavares de 29 June 2016 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-07-20T14:21:51Z No. of bitstreams: 1 2016 - Luiz Antonio Tavares de Oliveira.pdf: 1568115 bytes, checksum: 669684073f4278b0aae4285989b23a74 (MD5) / Made available in DSpace on 2017-07-20T14:21:52Z (GMT). No. of bitstreams: 1 2016 - Luiz Antonio Tavares de Oliveira.pdf: 1568115 bytes, checksum: 669684073f4278b0aae4285989b23a74 (MD5) Previous issue date: 2016-06-29 / Teaching chemistry in most high schools traditionally emphasizes memorization and transmission of fragmented and isolated contents. In technical education, however, that is less functional, because a connection between the National Base contents with more practical technical themes is necessary. In the absence of such connections, future technicians remain unprepared to make links and not able to apply his full skills. The scope of this research is to develop an innovative teaching model that enhances chemistry learning along with development of other technical and significant skills and competencies. Hence, ?Guaran?? was chosen, because it is a product symbol of Mau?s city, to become an integrating element: it would bring practical significance to chemistry classes for first year technical students. The specific objectives were: to verify whether the theme ?fertilizers for guaran? production? enhances significant chemical learning through lectures and projects development; and to verify whether this approach influences student?s approvals in chemistry courses. This research was conducted at the Federal Institute of Education, Science and Technology of Amazonas - IFAM, campus Mau?s in 2015, with thirty-three students of first year in Agricultural Technical Course. A new chenistry course description having ?guaran? produciton? as integrating element was designed. Topics such as: factors affecting the growth of guaran? plants, types of fertilizers used for this crop based on the essential macro and micronutrient demands. An initial survey followed by a second one afer claases were performed, at the end of the term, were applied to verify whether the main chemistry concepts were incorporated into the practical technical ones. Also the academic performance was looked into.The performance of the experimental group was compared to previous years?classes. The outcome of the two questionnaires revealed growth of 300 % in correct or expected answers; with respect to the final approval in Chemistry, experimental group increased by 84.85 %, surpassing all others from previous years. It is therefore concluded that the teaching method proposed, that is, connected to an integrating figure of tangible significance for the students, in this case the ' Guarana of Mau?s ' can contribute to better articulation of chemistry teaching/learning, with the development of skills and competences within a real context. / O ensino m?dio de qu?mica, na maioria das escolas tem por tradi??o a memoriza??o e a transmiss?o de conte?dos fragmentados e de forma isolada. No ensino T?cnico isso ? menos v?lido, pois se faz necess?rio uma conex?o maior entre os conte?dos da Base Nacional com as disciplinas de natureza t?cnica. Na aus?ncia desse enfoque, o futuro t?cnico fica com o conhecimento compartimentado, o que n?o colabora para a sua aprendizagem integral. Assim, o objetivo geral foi o de se desenvolver uma estrat?gia de ensino de qu?mica inovadora, para que a aprendizagem melhore e que o estudante desenvolva de forma mais ?ntegra as suas habilidades e compet?ncias t?cnicas. Assim, elegeu-se o fruto s?mbolo da cidade de Mau?s, o guaran?, como figura integradora do ensino de qu?mica no primeiro ano do ensino m?dio. O objetivo espec?fico foi verificar se o tema ?adubos e aduba??o do guaranazeiro? nas aulas de qu?mica, associada a projetos de pesquisa, revela potencialidades para se desenvolver conceitos qu?micos significativos e verificar se a nova metodologia repercute na evolu??o das notas finais e aprova??es da disciplina. A pesquisa foi realizada no Instituto Federal de Educa??o, Ci?ncia e Tecnologia do Amazonas ? IFAM, campus Mau?s em 2015, com trinta e tr?s alunos do Curso T?cnico em Agropecu?ria do 1? ano. Organizou-se um ement?rio de qu?mica por meio de um mapa conceitual partindo da cultura do guaran?, destacando-se os fatores que interferem no crescimento das plantas, os tipos de adubos usados na cultura de acordo com os macro e micronutrientes essenciais. Aplicou-se no in?cio um question?rio diagn?stico e ap?s ministradas as aulas com esse novo ement?rio, coletaram-se dados por meio da aplica??o de question?rio final, para verificar se os conceitos qu?micos foram incorporados aos conceitos t?cnicos e se isso refletiu no rendimento escolar. O desempenho da turma experimental foi comparado ao das turmas anteriores. O resultado da avalia??o dos dois question?rios - diagn?stico e final-, revelou evolu??o de 300% nas respostas esperadas ou corretas; com rela??o ? aprova??o final de Qu?mica da turma experimental houve aumento de 84,85%, superando todas as demais. Conclui-se assim que o ensino contextualizado proposto, conectado a uma figura integradora de significado tang?vel para os estudantes, no caso o ?Guaran? em Mau?s? pode contribuir para melhor articula??o do ensino-aprendizagem disciplinar com o desenvolvimento de habilidades e compet?ncias dentro de um contexto real.

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