Estudo dos meios de ensino de química analítica no curso de geologia da UEM

Abstract

The purpose of this work is to make an exploration of the teaching means available for teach the practical and laboratory classes of the Analytical Chemistry discipline for the Geology of the Eduardo Mondlane University (UEM) and contribute to making material available support for the development of practical and laboratory classes in this discipline This course is taught with the aid of a theoretical manual for the discipline of Chemistry Analytical in the Geology course (reference [19]), some sheets for practical classes and guidelines for laboratory classes that are also used in other UEM courses, theoretical books and practical with exercises and that most of them are not directly related to Geological practice. The preparation of this support material fits in with the purpose stated in the curriculum of Geology, which is to increase the student's connection with the practice in the area of ​​Geology, that is, there is a direct relationship between what is taught and Geological activity. For the development of this research, the qualitative research method (analysis of of documents; such as Geology curriculum, thematic program of the discipline of chemistry analysis, bibliographic references suggested in the thematic program of the subject under study and the type of mistakes made by students in the resolution of test 1 of the 1st semester, 1st year of the course of Geology) and quantitative (analysis of the workload of the contents of the discipline of chemistry analysis, analysis of the number / type of errors made by students in the subject under study and laboratory experiments to confirm the idea of ​​using reduced quantities in class laboratory), document review and interview techniques, observation and content analysis, as well as laboratory experiments to support some of the hypotheses raised here. It is The research provided important information on the teaching resources available to teach discipline and data were also obtained on how classes are taught and the method used. Then, the institutions related to Geology were identified and visited, namely National Directorate of Geology for bibliographic review; National Geology Laboratory, Laboratory of Engineering of Mozambique and Institute of Agricultural Research of Mozambique; the gravimetric chemical analysis method was selected and those situations of greatest interest as possible exercise content taking into account the results of the review of the tests on the theme and bibliographic references (references [17], [18], [19] and [20]); An analysis was also made of revision of the contents for laboratory classes and of the volumetric operative techniques with aim of achieving a more rational use of reagents without prejudice to the formation of students.