The article focus on the new challenges that the computer science has been introducing the teachers' education process, taking into account the data obtained from a research developed in Rio de Janeiro, Brazil. The aim of the research was to rethink the pedagogical practice of the teacher who is seeing the computer being introduced in every area of life, including schools. It was analysed the teaching practice in the communication and text processing by children in the first grades of the primary school. The data were interpreted according the contributions of Jean Piaget 's, Emilia Ferreiro 's, Lev Vygotsky 's and Seymour Papert 's investigations. For the use of the computer with children, it was chosen the language Logo, proposed by Papert, which enables real linguistic work in the classroom. The Megalogo was the software used in the study beside other educational softwares, in order to develop some basic abilities.