Star, JonKenyon, MartinaJoiner, RebeccaRittle-Johnson, Bethany2011-05-152010Star, Jon R., Martina Kenyon, Rebecca Joiner, and Bethany Rittle-Johnson. 2010. Comparing pays off! Mathematics Teacher, 103, no. 8: 608-612.0025-5769http://nrs.harvard.edu/urn-3:HUL.InstRepos:4889492en-USNewspaper or Magazine article2011-05-15