To Chih-Han Sah, in memoriam. [No authors listed] W CONCERNED, WYOUCAN DO - math.berkeley.edu GSID: kWNW25tYO14J
Confronting reform. [No authors listed] J Kilpatrick - The American Mathematical Monthly, 1997 - Taylor & Francis GSID: uFNlSB2CTewJ
Mathematics teaching in the United States today (and tomorrow): Results from the TIMSS 1999 video study. [No authors listed] GSID: r1X0FUFbd3EJ
A brief history of American K-12 mathematics education in the 20th century. Klein D. D Klein - Mathematical cognition, 2003 - books.google.com GSID: YxqQg3qXYfQJ