Learning through global contexts helps teachers and students answer the important question Why are we learning this?

I do believe that the most important answer will be : How are we learning this ? If we are realistic 95% of the content we teach is useless in everyday life and will be useless when our students will go to college. However, how we are going to learn is going to make the difference.
On the other hand, global contexts will provide opportunities to link our teaching to the outside world and to other subjects, through interdisciplinary projects or not, and most of all NOT depending on the content.
So, we will not link Maths and Experimental Sciences because Physicians use Maths, but we will link Maths and History because the concepts match.