TY - BOOK AU - National Research Council (U.S.). TI - Measuring up: prototypes for mathematics assessment T2 - Perspectives on school mathematics SN - 9780309048453 AV - QA135 PY - 1993/// CY - Washington, District of Columbia PB - National Academy Press KW - Mathematics KW - Study and teaching (Elementary) KW - United States KW - Evaluation KW - Mathematical ability KW - Testing N1 - 2; Also available via the World Wide Web ER -