Estimation skills, mathematics-in-context, and advanced skills in mathematics : results from three studies of the National Assessment of Educational Progress 1996 mathematics assessmentMitchell, Julia H.National Assessment of Educational Progress (Project)National Center for Education StatisticsEnglishBook1999Washington, DC : National Center for Education Statistics, U.S. Department of Education, Office of Educational Research and Improvement : For sale by the U.S. G.P.O., Supt. of Docs., [1999]Mathematics—Study and teaching—United States—StatisticsMathematical ability—Testing—StatisticsBook9780160502095