TY  - BOOK
AU  - Russell,Susan Jo
TI  - But why does it work?: mathematical argument in the elementary classroom 
SN  - 9780325081144
AV  - QA 8.7 .R87 2017
PY  - 2017///
CY  - Portsmouth, NH
PB  - Heinemann
KW  - Logic, Symbolic and mathematical
KW  - Study and teaching (Elementary)
KW  - Mathematics
KW  - Mathematical analysis
KW  - Philosophy
N1  - Includes bibliographical references; Mathematical argument in the elementary grades : what and why? -- Elementary students as mathematicians -- The teaching model -- Using the lesson sequences : what the teacher does -- Mathematical argument in the elementary classroom : impact on students and teachers
ER  -