Of boys and girls Anne Marie Owens National Post Thursday, February 24, 2005 When Leonard Sax noticed the parade of boys being marched into his family medical practice with notes from school seeking medication for Attention Deficit Disorder, he realized something was out of whack. A trained physician and psychologist, Dr. Sax found most schools refused to recognize innate gender differences. He became an impassioned advocate for gender-segregated classes through the National Association for Single Sex Public Education. His new book, Why Gender Matters: What Parents and Teachers Need to Know About the Emerging Science of Sex Differences (Doubleday), pulls...