PHILLIPS MEET KHAN: One of the nation's most elite private schools, Phillips Academy, has joined forces with Khan Academy to take on Calculus. A team of 30 PA math instructors, whose students routinely score a "5" on AP Calculus exams, are developing complete problem sets that align to BC Calculus for the site. Calculus has been one of Khan's weaker math offerings. The BC Calculus course will be offered on the Khan Academy website by Fall 2014. This is the first time Sal's team has partnered with high school instructors to provide content for the world famous site, and perhaps this is just the beginning.