Problem at Web International Conference - Technology, Creativity and Affect in Mathematical Problem Solving, Date: MAY 02-04, 2014, Location: Vilamoura, PORTUGAL, Sponsors: Univ Algarve, Camara Municipal Loule, Springer, Texas Instruments, Pelcor, Raiz Editora, Assoc Professores Matematica, Fundacao para Ciencia Tecnologia, Regiao Turismo Algarve, Loule Concelho, Distribuidor Mat Elect Lda