EXPERIMENTAÇÃO NO ENSINO DE CIÊNCIAS: UM RELATO DE EXPERIÊNCIA SOBRE A ACIDEZ DO SUCO GÁSTRICO NO ENSINO MÉDIO

Abstract

This study aimed to report and analyze the experience developed within the Institutional Scholarship Program for Initiation to Teaching (PIBID), with emphasis on conducting an experimental activity on the acidity of gastric juice. The practice was carried out with 1st- and 3rd-year high school classes in public schools located in the municipalities of Itapaci and Ceres, Goiás, specifically at Colégio Estadual Luís Alves Machado and Colégio Estadual CEPI João XXIII. The experiment used low-cost materials to simulate the action of gastric juice on proteins, allowing students to observe and practically understand phenomena related to the digestive process. The activity was conducted in a participatory and contextualized manner, promoting dialogue, interaction, and the collective construction of knowledge. The results indicated that experimentation, even when supported by simple resources, stimulated scientific curiosity, enhanced the understanding of biological concepts, and contributed to more meaningful learning. Furthermore, the experience reinforced the importance of experimentation as a supporting tool for Biology teaching, highlighting the teacher’s role in mediating between theory and practice and demonstrating that accessible activities can effectively foster student interest and comprehension Keywords: PIBID; Experimentation; Science Teaching; Gastric juice.