A mancha

Synopsis: worried about a spot of chemical pollutants approaching your town, a farmer seeks the help of a friend to avoid catastrophe. The friend in turn suggests a mathematical model to analyze the problem. Objective: To give an example of mathematical modeling, initiating the concept of matrices and systems with more than two variables, motivating operations between matrices and vectors.
Source: Unicamp - M3, Mathematics Multimedia.
URL: http://m3.ime.unicamp.br/recursos/1133