Make a synoptic table on topics 3 (first order differential equations part I), 3.1 linear differential equation, 3.2 solution of a complete linear equation, 3.3 applications of systems of differential equations and topic 4 (first order differential equations part II ), 4.1 special integral factors, 4.2 grange equation, 4.3 clairaut's equation 4.4 trajectory problems. in order to know the most important elements of first order differential equations. 3) Investigate two examples of applications in real life on systems of differential equations, these have to be different from the ones seen in your course, attach them at the end of your synoptic table.