Sobre la interpretación y uso de la letra como número generalizado en tareas y actividades sobre generalización de patrones: reporte de una experiencia con estudiantes de grado octavo (13 - 15 años)

Abstract

This thesis disclosed the results of a study using as methodology action research, which aims to promote a conceptual approach of a group of eighth graders of Secondary Basic Education , on the interpretation and use of the letter as generalized number , by the resolution of a number of tasks on generalization of patterns. A description and analysis of the conceptual development and thought from the Vygotskian theory versus cognitive approaches around comprehension levels , types of representation and deploying mathematical activity occurs when students solve these tasks , closely linked to the use of instruments of semiotic mediation.