O ensino de química por meio de atividades experimentais: abordagem significativa para alunos da 1ª série do ensino médio.

Abstract

The teaching of Chemistry in high school has continually sought strategies that promote more effective and meaningful learning. In this context, experimental activities emerge as a promising pedagogical approach capable of not only facilitating the understanding of chemical concepts but also stimulating students' interest in the subject. This study aims to investigate the impact of these activities on the cognitive development of first-year high school students. The methodology involved the implementation of experimental activities in the classroom, followed by questionnaires to assess students' perceptions regarding learning and interest in Chemistry. The results revealed that the majority of students showed a positive receptivity to experimental activities, reporting greater engagement with the covered content and a deeper understanding of chemical phenomena. Furthermore, students highlighted that practical activities helped visualize concepts that had previously seemed abstract, thus making learning more concrete and meaningful. Key findings include increased student motivation to participate in Chemistry classes, evidenced by heightened interest and curiosity in the subject. Students also reported improved comprehension of theoretical content after engaging in practical activities, suggesting a more effective integration of theory and practice in the teaching-learning process. In conclusion, this study reinforces the importance of experimental activities as a fundamental pedagogical strategy in Chemistry education. This approach not only enhances students' understanding of chemical concepts but also fosters the development of essential cognitive skills such as critical reasoning and problem-solving. Therefore, it is essential for schools to encourage and promote the implementation of practical activities in their teaching practices, thereby significantly enhancing student learning in the context of Chemistry education.