education
what to teach students? concepts and strategies. if you teach students anything of a sensitive nature, then things will change to stay hidden. and what was learned is no more of value. better to teach students how to understand concepts about different things and plan strategies about different scenarios. there are lots of material that can be used: movies, news and so on example: if a method works and a teacher tells the students about it, then everyone knows about the method and the method will not be as effective any more but if the teacher teaches the students to understand concepts and strategies, then the students can plan and execute their own methods