Child Development and Pedagogy · Pedagogy

While teaching microbial diversity, a teacher assigns different student groups to investigate why bread sometimes becomes fluffy and at other times grows green patches. Students design small experiments using yeast and mold samples, control temperature and moisture, and observe changes daily. They record findings using tables, photos, and short videos. Later, each group explains the scientific reasoning behind their observations: the role of fungi, environmental effects, and decomposition. The teacher emphasizes that scientific ideas grow through systematic observation, questioning, and evidence-based conclusions, not only from textbooks. Which core element of science learning does this activity highlight?