The Van Hiele Model of Geometric Thought and possible contributions to the dynamic geometry

This work presents the main ideas discussed in an essay written in a Computers and Education class in a Master Course at PPGI-UFRJ. We discuss the need to emphasize the topics related to euclidian geometry in primary and secondary schools. The Van Hiele model of the development of geometric thought is presented as a guideline for learning and as an instrument for the evaluation of students′ geometric abilities. Based on Van Hiele ideas and on tests created by the Fund o/UFRJ Project staff, a quantitative study on the level of geomteric thought was performed with students of a public technical high school in Rio de Janeiro. As conclusions, an exposition on possible contributions of dynamic geometry to the Van Hiele model is made.