Robolab is a graphical programming environment that allows controlling the intelligent block of LEGO RCX . This software commercialized by LEGO 1 is aimed at educational use with children and young people, aged between 6 and 16 years, and uses an adapted version of LabVIEW , from National Instruments . Robolab software is icon based, which allows you to create diagrams that are the programs that control the RCX. It offers different modes of programming adapted to the learning level of students: Pilot and Inventor. In addition, it offers the Investigator mode oriented to its use in the science laboratory.