In this article we will determine the relationship between the skill level of semantic language structures and processes of analysis that can reach subjects involved in communities of vulnerability condition. First, we will identify the socio-cultural context in which the population is involved to study of the district school Jorge Soto Del Corral and its implications in the semantic structure of language. Then, it will recognize the different semantic structures as the homonymy, antonymy, synonymy and polysemy in relation to concepts from the social sciences. After we will consider the analysis processes as an inherent activity to critical thinking, own practice of social sciences and we will finish with some conclusions about the direct relationship between semantic structures present in the language of social sciences and the skill in analytical competition that the students have to solve problems of the subject concerned. In this study, qualitative methods were applied from an ethnographic approach, where the researcher was immersed in the community to identify the use of linguistic signs. Subsequently, five tests were developed consisting assess mastery and analytical use of (26) items own social sciences related to the level of a student's junior year. Finally, he made the analysis of the results with accounting tools based on a scale (low, basic and higher) which showed little knowledge on this subject because they have little grasp of the meaning of these words; situation that will allow us to conclude that there is a direct relationship between semantics and analysis processes as directed by Vygotsky "Thought is not merely expressed in words, but through them there" (1995)