EJMT Abstract

In this paper we present technology-based activities in geometry that promote pre-service teachers’ mathematical reasoning. These future teachers explored carefully structured activities that allowed engaging technological skills as well as developing and evaluating geometric conjectures. The technology was used as a partner in both of the examples presented here and the students explored each activity through paper folding, technology application and constructing proofs as part of reflexive pedagogy in action. As teacher educators, we recognized technology as an important part of developing pre-service teachers’ professionally situated knowledge.