Open AccessA Survey on 2009 Revised Elementary Mathematics Textbooks -focusing to 'number and operation' of 3~4th grades-
Author(s) -
Dong Hwan Lee,
Sung Joon Kim
Publication year - 2015
Publication title -
east asian mathematical journal
Language(s) - English
Resource type - Journals
eISSN - 2287-2833
pISSN - 1226-6973
DOI - 10.7858/eamj.2015.020
Subject(s) - mathematics education , mathematics , arithmetic