Add Yahoo as a preferred source to see more of our stories on Google. The Advanced Placement Calculus AB exam is one of the most challenging AP tests that students can take. Students must master a ...

Corrections & Clarifications: An earlier version of this story misstated the percent of students Truman Bennet falls in. He is among 0.006% of students to achieve a perfect score on the exam this year ...

MISHAWAKA, Ind. — An Indiana high school student accomplished a feat no one else in the world could do this spring. Felix Zhang, a junior at Penn High School in Mishawaka, was the only student in the ...