TY - BOOK ED - Conference Board of the Mathematical Sciences. TI - Overview and analysis of school mathematics, grades K-12 AV - QA13 .C6 1975 U1 - 510/.7/1073 PY - 1975/// CY - Washington PB - The Board KW - Mathematics KW - Study and teaching KW - United States KW - Local N1 - Includes bibliographical references ER -