This is just a short post to share two projects that I wrote for Instituto Superior de Profesorado Pbro. Dr. Antonio M. Sáenz, the teacher training college where I worked. The projects are written in Spanish since in Argentina they are supposed to be written in this official language.
These projects are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported Lincence.
Please, feel free to make comments on them, tweak them and share them again.