Learning from Singapore Math by Steven Leinwand and Alan L. Ginsburg:
What is AIR?
The American Institutes for Research (AIR) is one of the largest behavioral and social science research organizations in the world.
What is the purpose of this study?
Funded by the U.S. Department of Education, the study What the United States Can Learn From Singapore’s World-Class Mathematics System (and what Singapore can learn from the United States) identified major differences between the mathematics frameworks, textbooks, assessments, and teacher preparation in the U.S. and Singapore.
What else does the study include?
The study also includes initial results from four pilot programs that used the Singapore Math ® curriculum in place of their previous curriculum. The pilot programs involved students in Baltimore, Md., Montgomery County, Md., North Middlesex, Mass., and Paterson, N.J.
What Singapore Math® books did these pilot programs use?
All four pilot programs used the Primary Mathematics series.
Where can I find the full AIR report?
Please visit the AIR web site for the summarized report.
Quoted from https://www.singaporemath.com/Singapore_Math_Story_s/10.htm