\input zb-basic \input zb-matheduc \iteman{ZMATH 2016d.00785} \itemau{Camporesi, Roberto} \itemti{A fresh look at linear ordinary differential equations with constant coefficients. Revisiting the impulsive response method using factorization.} \itemso{Int. J. Math. Educ. Sci. Technol. 47, No. 1, 82-99 (2016).} \itemab Summary: We present an approach to the impulsive response method for solving linear constant-coefficient ordinary differential equations of any order based on the factorization of the differential operator. The approach is elementary, we only assume a basic knowledge of calculus and linear algebra. In particular, we avoid the use of distribution theory, as well as of the other more advanced approaches: Laplace transform, linear systems, the general theory of linear equations with variable coefficients and variation of parameters. The approach presented here can be used in a first course on differential equations for science and engineering majors. \itemrv{~} \itemcc{I75} \itemut{ordinary differential equations; Green functions; instructional exposition} \itemli{doi:10.1080/0020739X.2015.1057246} \end