As a result, there's not really the time to write a complete post this week.
In the meantime, you might want to check out this essay by Miles Kimball and Noah Smith, entitled "There's one key difference between those who excel at math and those who don't". In the first part of the MBA course, I heard a lot of people say that they were not "math people". The essay attacks this concept, arguing that mathematical ability can be learned through hard work, and to believe that such an ability is innate is to condemn yourself. And it's a premise I agree with. Mathematics is one of those skills that rewards hard work and practice.
And I promise that more of that work and practice will happen next week. But my first priority is family time... :)