Butler University was host on September 18, 2009 to 25 students of Peggy Boulden's class from Broad Ripple High School in Indianapolis. The students were all mathematically astute and we wanted to show them something new and decided to present a Martin Gardner magic effect.
"Martin Gardner's Word Magic Enthralls Broad Ripple Teens,"
Word Ways: Vol. 42
, Article 15.
Available at: https://digitalcommons.butler.edu/wordways/vol42/iss4/15