I studied Mathematics at the National University in Mexico and begin working 18 years ago (1980) at the National Pedagogical University in Mathematics Education with in-service teachers and Ba students in education.
In 1987 I started teaching in 7th, 8th and 9th grade in a private school. Since 1989 I start working with computers, my first programas were Logo and Basic and now I am working with the TI-92 with Cabri to teach geometry to students on 8th grade.
Last year a group of 8 teachers from our University which I belong start working in a network proyect about Mexican history the name was "Exploradores de Mesoamerica" with students of 5th grade in 12 schools. Our approach is influenced by the Vigotskis work about social learning. We are finishing the analisis of this pilot experience and planing our work for this year.