Pigmentos naturais: uma abordagem contextualizada num curso de química orgânica experimental

This paper aims to present a proposed activity for the bachelor degree in chemistry, a discipline of experimental organic chemistry. A course based on the model of academic called practical rationality proposed since the early contact with the undergraduate teaching disciplines and promotes the licensing chemistry, beyond the theoretical sciences that provide the eyes on the teaching practice. Using the context for the promotion of a current teaching, constructive and meaningful, the teacher encourages student participation in the production of classes and experiments enable the construction of concepts unrelated to the recall.