  In this work animations of the random walk movement using a freeware Algodoo
were done in order to support teaching the concepts of Brownian Motion. The
random walk movement were simulate considering elastic collision between the
particles in suspension in a fluid, and the particles which constitute the
fluid. The intensity of velocities where defined in an arbitrary range, and we
have a random distribution of the velocity directions. Using two methods, the
distribution histogram of displacements (DHD) and the mean-square-displacement
${\langle{\Delta r^{2}}\rangle}$ (MSD), it was possible to measure the
diffusion coefficient of the system, and determine the regions where the system
presents ballistic regime or diffusive transport regime. The ballistic regime
was observed graphically when the MSD has a parabolic dependence with time,
which differing from the typical diffusive regime where MSD has a linear
dependence. The didactical strategy for combining analytical approaches as
graphic analysis, and animations in software's with easy implementation
supports the teaching and learning processes, especially in Physics were we
want to explain experimental results within theoretical models.
