The College Board, which administers the Advanced Placement program, and Khan Academy, an online nonprofit offering resources and videos, are teaming up to create a supply of free test-preparation and ...

How many fifth-graders in the U.S. took the AP Calculus AB exam last year? Radu Rosu of Chapel Hill wanted to find the answer. He knew of one child who did - his 10-year-old son, Paul Rosu, who earned ...

Walker Kroubalkian said he didn’t pay much mind to an advance placement test he’d taken five months ago. The University High School student took the AP calculus exam in May. He’d hoped for a 5, which ...