(Zaragoza, 1960). Bachelor of exact sciences. Professor of mathematics and computer science at the IES Matarraña Valderrobres (Teruel). I also teach and tutor at the Open University of Caspe. I have written an article on the teaching of mathematics in journals such as Sum, Sigma, One. My basic line of research is based on the mathematics from the context. Part of processed materials related to this topic can be found on my page http://catedu.es/calendas/ For my attempt to bring mathematics into the classroom have received two awards (2007 and 2008) Science in Action contest. I have published three books on mathematics with Excel (two in the Ra-Ma Editorial and another in South Project). Mathematicians write stories. Some have been awarded: the V Story Contest "Ada Byron," and the III and IV Short Story Contest RSME-Anaya. In another line, I was a finalist for the Story Contest XXII Golden Piggy, I won the X Prize International Short Story Julio Cortazar, got an honorable mention to Train Awards. These stories have been published but can be read by following the path: http://catedu.es/calendas/00litemate.htm In 2009, saw fit to publish me Graó a book a little odd: a kind of academic reports or retrospective examination of conscience ., something. It is entitled What Chinese plums? I Want to be bender movies and tenor saxophone in a jazz band.