The NAIS office will be closed Monday, December 23, through Wednesday, January 1, for Winter Break. We will reopen at 9:00 AM ET on Thursday, January 2.
Akihiko Takahashi is associate professor of mathematics education at DePaul University in Chicago. He taught students in grades 1-6 for 19 years in Japan, where he helped lead the national shift to teaching mathematics through problem solving.