Conditional propositions: Problematic performances and didactic strategies

Resumen

We share some results obtained from a teaching experiment, where the role of the use of dynamic geometry is important, designed to help students overcome some problematic performances related to the use and comprehension of conditional propositions aspect tha affects learning to prove. We describe four strategies designed to aid students to deal with the problematic performances, the instrument used to determine efficiency of the didactic strategies and report our findings.