TY  - BOOK
AU  - Gardella,Francis J.
TI  - Introducing difficult mathematics topics in the elementary classroom: a teacher's guide to initial lessons 
SN  - 9780415965026 (pb : alk. paper)
PY  - 2008///
CY  - New York
PB  - Routledge
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Logic, Symbolic and mathematical
KW  - Curriculum planning
N1  - Includes bibliographical references and index
ER  -