Resumen

GARRITZ, Andoni. Twenty-fifth anniversary celebration of Educación Química. Educ. quím [online]. 2014, vol.25, n.3, pp.286-289. ISSN 0187-893X.

This editorial work is devoted to talk a little on the 25th anniversary of this Journal. We start with an eulogy of number five, because twenty five is five times five. Immediately we aboard the description of the ten set of authors of the articles on this celebration, all of them about Pedagogical Content Knowledge or some of their equivalent names (or not, as we shall see). I remember how I met them and also to minimally describe the content of their contribution.

Palabras llave : Pedagogical Content Knowledge; anniversary; chemistry education.