Danica Mae McKellar (born January 3, 1975) is an American actress, author,
mathematician, and education advocate. She played
Kevin Arnold's on-off girlfriend
Winnie Cooper in the television series
The Wonder Years, and later wrote four non-fiction books:
Math Doesn't Suck,
Kiss My Math,
Hot X: Algebra Exposed and
Girls Get Curves: Geometry Takes Shape, which encourage middle-school and high-school girls to have confidence and succeed in
mathematics.