Structural and operational mathematics: an integrated approach in e-learning

In this paper we try to combine research results in Mathematics Education with the opportunities provided by technology in order to design and implement an e-learning course. The aim of the work is to investigate how to apply theoretical constructs, such as the dual nature of conceptions and the process of the knowledge construction (Sfard, 1991), into new teaching environment such as e-learning platforms This has guided the design of some WebMathematica learning activities (WM-LA), each of them consisting in more interactive and dynamic problems (PWM), that is step-by-step algorithm