February 24 of the Mystery Year is a day to remember Katherine Johnson — for whom the movie Hidden Figures is based. The math clues for finding the year involve computer program skills involving a loop, exponents, and prime numbers . The puzzle discusses Johnson's amazing work as a mathematician during the early years of the U.S. space program — while overcoming constraints of segregation and gender bias. Your PDF Download Includes:1-page Student Puzzle prepped for Easel1-page Answer Key with