Dificultades en conceptos matemáticos básicos de los estudiantes para maestro

Mathematics is important for the formation of a citizen because it constitutes a powerful instru-ment of analysis of the reality, of understanding of the world and of development of the criticalcapacity to intervene.We believe that this is the most important purpose of people’s mathematical activity, but to reachit, future teachers must have confidence in the basic mathematical knowledge on which to build fur-ther knowledge.However, in the field of mathematics education, errors constantly appear in student productions.This article discusses the errors committed by students because they provide rich and interesting information about how the mathematical knowledge is constructed. This analysis will allow usto find the common patterns that errors follow, and thus we’ll be able to make inferences about themental processes and the structures that help to organize knowledge.It is precisely the regularity in which certain errors appear that allows us to develop classifica-tions of these errors. Also, we must take into consideration that the categories are not hermeticcompartments and often overlap with each other, as errors rarely occur due to a single cause. Forthis reason, to try to better understand the causes, errors are categorized according to different cri-teria