I need some info from different country regarding their nationwide scheme or system by which students are properly guided in their choice of STEM track in their senior high school. I can speak for one country like in Papua New Guinea!, whee i taught for 16 months, that a test was given to the Grade 10 students so that they will be classified onto what track they should be. This is like an aptitude test and mental ability test given nationwide and students compete for slots in the university. But some countries may have unique system in place other than a test. This is what i need to know from as mqny countries possible. Thank you very much.