%0 Journal Article
%A ایزدی, مهدی, ریحانی, ابراهیم, احمدی, غلامعلی
%T Teaching addition and subtraction: A comparative study on the math curriculum goals and the content of the first-grade math textbook in Iran, Japan, and the USA
%J Research in Curriculum Planning
%V 12
%N 46
%P 55-74
%D 2015
%R 
%U https://sanad.iau.ir/fa/Article/898543