It is well known that the mathematics they are capable of excitement and exasperation in equal measure, that they are thought-defying, that they create debate about whether or not they are inaccurate, that they are complex, and that they are hated or fascinating. Like it or not the maths they move the world, they are in our day to day, no matter how simple the calculations we make.
When teach math sometimes the problem is the method rather than the ability to understand. We cannot offer you the possibility of discovering an infallible system if, as a teacher, you want to get an answer as a general approval in your mathematics subject, but we are going to explain where you can get inspiration and resources that can give you a lot of play.
Lots of play and great room for maneuver, something like a total of 6 books with math problems, all of them exposed in an entertaining way that you can still download for the class or recommend to your students for the holidays, for example. Everyone the books are free, and they are at your disposal in PDF format. The one to thank for such a gesture of generosity is Adrian Paenza, an Argentine doctorate in mathematics who also works as a sports journalist, work for which he has been recognized on various occasions.
Titles like "Mathematics ... are you there?" or "How, this is math too?" point to the fact of wanting zoom in on math through a fun and entertaining vehicle. You can access the direct download of math books by Adrián Paenza through the websites of the Department of Mathematics of the Faculty of Exact and Natural Sciences of the University of Buenos Aires. Click on each book and then choose «Download the book in PDF format». You should, logically, take into account the purpose of your download, using them only for personal or educational use, and never for profit.