Enhancing Mathematical Teaching-Learning Process by Mathematica

In this paper we aim to show a Mathematica notebook based on a package built to demonstrate the working of Linear Time Independent Systems (LTI Systems). This notebook let the user play with a virtual LTI system, where he/she can choose things such the input signal, the system transformation given as the system response to a pulse signal, and see in real time the shape of the output signal. The user can also see the response of the LTI system to canonical signals, or also analyze the signal in the frequence domain, showing its frequence response in Bode or Polar diagrams. The pedagogical assumption we followed in the package development is that a student learn better and in a more stimulating way using the strategy of learning by doing. Manipulating data and observing the results of their manipulation a learner can reach a deeper knowledge of the learning subject. We well explain in more detail how the package works in the following sections.