I have been teaching high school science for 36 years. Over the last few years, students appear to have become less motivated. To be specific, more of the 15 year olds I teach than in prior years, are either amotivated, or motivated only by an acceptance of my relationship with them or their parents to do the bare minimum. None of the usual; motivational strategies seem to work. The curriculum is interesting and flexible. They have choices in topic and assessment and the contexts are relevant. My hypothesis is that it is a social problem and that classical approaches to motivation will not work. Otherwise it is a problem of prior schooling creating a negative mindset. Our society is relatively affluent and supportive. Is this a local or widespread phenomenon? Does anyone have any possible explanations?