Trigonometry is a sine of the times.
~ Author Unknown
Education systems are under stress in many parts of the world. Due to the complexities of culture and society it is very difficult, if not impossible, to analyse and articulate the nature and causes of these stresses, let alone to design good remedies, to any appreciable extent.
Yet we have to try to get some grasp on the complexity, and continually re-examine our partial understanding critically. We have to act educationally on the basis of our partial understandings, and continually monitor the effects of our actions.