jaketeater writes: "I am a child care worker in Brazil at an orphanage for abused and abandoned children. The kids lack in critical/creative thinking skills, which hurts them when it comes to schooling and even relationships. When I was a child I loved playing games like The Incredible Machine, which taught critical thinking in a fun way. Are there any free/open source (we run on a tight budget) programs that I could use to help them develop better thinking skills? Or teaching material that would help me teach kids to use computers and technology?"