has been released today for this new activity called TetrisMat XO, developed by a member of CeibalJam of Uruguay.
To download click on the link:
http://drupal.ceibaljam.org/sites/default/files/TetrisMat-1.xo
(This is the portal of Ceibal Jam: http://ceibaljam.org in the download)
screen at startup:
Playing the option EASY:
Hope you like!
