This paper presents theoretical and methodological questions related to the creation of a Linguistic Database, made up of samples from the Cazumbá Iracema Extractive Reserve, located in the state of Acre, and discusses the main challenges found and contributions to the teaching and learning process of Portuguese. The methodology for collecting and organizing this database is based on the theoretical assumptions of sociolinguistic patterns, the empirical foundations of the Theory of Linguistic Variation and Change, and the methodology for collecting and manipulating data in sociolinguistics. The implementation of the proposal involves the use of software that can be used in education. The results show contributions of this sample use for the creation of teaching proposals, focusing on the language in use, identification of the sociocultural factors that influence the emergence and permanence of linguistic variation and researches in the scope of natural languages.