TY  - BOOK
AU  - Gardella,Francis J.
TI  - Introducing difficult mathematics topics in the elementary classroom: a teacher's guide to initial lessons 
SN  - 9780203891179 (electronic bk.)
PY  - 2009///
CY  - New York
PB  - Routledge
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Logic, Symbolic and mathematical
KW  - Curriculum planning
N1  - Description based on print version record; Includes bibliographical references (p. 153) and index; How children learn mathematics (and why it doesn't happen!) -- Median : finding what's in the middle -- Rounding : the mystery of "rounding up for 5" -- Skipping multiplication (or at least through it) -- Learning to use division -- Fractions : what's it all about? -- Fractions : adding unlike things? Impossible! -- Fractions : dividing into small pieces? -- Decimals : operations before rules -- Measurement : make your own ruler -- Area : skipping through the rows -- Volume : it's like looking at an apartment house-- -- Mean : how much does each get? -- Percent : leveling the field of comparison -- Order of operations? : an agreement? Did you get the memo?
UR  - http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=234469
ER  -