TY  - BOOK
AU  - Sowder Judith
TI  - Reconceptualizing Mathematics : Reasoning About Numbers And Quantities Reasoning About Algebra And Change Reasoning About Shapes And Measurement / Judith Sower Larry Sowder And Susan Nickerson
SN  - 1429224274 (Pbk.)
PB  - New York : W. H. Freeman And Company 2009
ER  -