Mathematical Association of America A summary of selected findings from the Mathematical Association of America’s (MAA’s) study of Characteristics of Successful Programs in College Calculus, constitutes the a nationwide investigation of college-level Calculus in the United States combining both large-scale survey data and in-depth case study analysis. The report establishes a base of knowledge of who takes Calculus I and why. Second, it identifies institutional practices that contribute to the retention of STEM students.