A theoretical-experimental proposal, in teaching sequences about intermolecular interactions on teaching chemistry using variations of the test of adulteration in gasoline and urucum dyes
Keywords:
intermolecular interactions, urucum, teaching sequence, meaningful learning.Abstract
This paper reports presents the results of a research developed with students of the high school in the Dourados, Mato Grosso do Sul, with the objective of proposing a theoreticalexperimental teaching sequences, potentially significant, approaching the theme Intermolecular Interactions. The teaching sequence was developed with 44 students of the last year of the high school, with the duration of 9 classes of 50 minutes. The methodology presents the characteristics of the qualitative research, being based on David Ausubel's theoretical. We used, as advance organizer, the test determination of the ethanol content in gasoline, adapting, along the experiments, to the use of the natural dyes of the urucum seeds communly used through the region the research was done. The instruments used to collect the information was through the use of questionnaires and observations of the classes. At the end 32 students presented arguments, developing in each stage, as well as in participation, as in classroom discussion, evidencing the evolution conceptual on the process of significant learning.Downloads
Published
How to Cite
Issue
Section
License
IENCI is an Open Access journal, which does not have to pay any charges either for the submission or processing of articles. The journal has adopted the definition of the Budapest Open Access Initiative (BOAI), which states that the users have the right to read, write down, copy, distribute, print, conduct searches and make direct links with the complete texts of the published articles.
The author responsible for the submission represents all the authors of the work and when the article is sent to the journal, guarantees that he has the permission of his/her co-authors to do so. In the same way, he/she provides an assurance that the article does not infringe authors´ rights and that there are no signs of plagiarism in the work. The journal is not responsible for any opinions that are expressed.
All the articles are published with a Creative Commons License Attribution Non-commercial 4.0 International. The authors hold the copyright of their works and must be contacted directly if there is any commercial interest in the use of their works.