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Geometry Proof Writing: A New View of Sex Differences in Mathematics Ability

A study of 1,364 students in 74 senior high school classes in which geometry proof was taught found equal ability among males and females to write geometry proofs. These results held as well for select high-achieving subsamples. These findings and data from other recent studies suggest that girls and boys perform equally well even on complex mathematical tasks if both in-class and out-of-class exposure to the tasks is equal.