Some parts of the oecd survey are disturbing.Even though top performers in maths or science are evenly matched among males and females,a gender gap persists in terms of aspiration.More boys than girls expect to work in science or engineering-the average gap across the oecd is more than ten percentage points.The problem continues in higher education;with the exception of biological and biomedical sciences,degrees in stem subjects(science,technology,engineering and maths)are male-dominated.In America women earn just 35.5% of undergraduate stem degrees and 33.7% of phds.