Navegando por Autor "Gomes, Jeneffer Raphaelle dos Santos"

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    Utilização de vídeos didáticos para o tema técnicas de extração
    (2025-07-08) Barbosa, Cândida Caroline da Silva; Ferreira Júnior, Jésu Costa; http://lattes.cnpq.br/5859354241648167; Silva, Leonardo Vieira da; http://lattes.cnpq.br/3401495568705461; Azevedo , Edmar Marinho de; http://lattes.cnpq.br/2213926589443334
    This study investigates the use of educational videos as a complementary pedagogical tool in teaching Organic Chemistry, particularly in experimental classes taught in Technical High School Chemistry courses at the Federal Institute of Alagoas (IFAL), Maceió Campus. The main objective is to address the difficulty many students face in connecting theory and practice with the content studied, including a lack of familiarity with the materials and reagents that will be used during laboratory classes. Thus, the proposal aims to promote a more dynamic (using visual resources and accessible language), contextualized (relating the content to everyday experiments), and meaningful (encouraging students' understanding and proactive role in experimental practice) teaching-learning process. Three demonstration videos of experiments included in the curriculum for third-year Technical High School students were produced and applied. All videos exclusively address extraction techniques, as this is a thematic focus defined in the research. The techniques used were: (i) solid-liquid extraction of caffeine, (ii) extraction using a Soxhlet apparatus, and (iii) acid-base extraction of Doril components. The videos were watched before the experiments. Before the practical classes and after watching and completing the practical classes, students completed questionnaires on the concepts and laboratory practices on Google Forms. The results demonstrated a significant improvement in understanding the concepts and conducting the experiments, indicating that the audiovisual resource contributes to student preparation, reducing doubts and increasing performance in the practical classes. Student evaluations of the pedagogical tool highlighted its clarity, usefulness, and appropriate structure. Therefore, the use of educational videos, integrated in a planned manner into the pedagogical process, achieved the proposed objectives and proved to be an effective tool for teaching Organic Chemistry practices, fostering knowledge construction in a more accessible, interactive, and meaningful manner.