Right. So now we have tried our  best to make sure that everyone can pass but there is one crucial element left out- the text books. We have to make sure that there are enough errors in the calculations to completely destroy the learner confidence in the material- pretty easy to do if one changes the syllabus on a regular basis. Done! Oh, the next thing to make sure we get right is to not give the writers of the new text books enough time to truly check their work. Done!! Shoe, this is proving to be too easy. Lest we forget, let us use examples in the textbooks that have no relevance to the material but are politically correct. Done. Last thing to do- make sure that not even graduates can understand what it is that we are trying to do in the examples. Done.
OK. So there you have it. The textbook on how to ensure that maths and science remain un-accessible to most learners.
Have a happy day!!