[1]Programa de Pos-GraduacaoemEducacaoemCiencias e Matematica-PUCRS Porto Alegre (RS) Brazil;
Basic Education Direction of Aelbra Canoas (RS) Brazil;
[2]Colegio ULBRA Sao Mateus Cachoeirinha (RS) Brazil;
[3]Colegio' ULBRA Sao Lucas Sapucaia do Sul (RS) Brazil;
[4]Programa de Pos-GraduacaoemEducaqaoemCiencias e Matematica-PUCRS Porto Ategre (RS) Brazil;