TY  - BOOK
AU  - Pimm ,David
TI  - Speaking mathematically : : communication in mathematics classrooms / 
SN  - 0710211333
PY  - 1987///
CY  - London : 
PB  - Routledge & K. Paul , 
KW  - Mathematics /x Study and teaching
KW  - Mathematical notation
KW  - Communication in education
N1  -  Includes bibliographical references (p.208-215) and index
ER  -