Nutt and Clarke (2002) addresses th

Nutt and Clarke (2002) addresses the hidden curriculum in detail, including issues of masculinity, femininity, normed behavior of boys and girls, and the importance in attention given to observing behaviors of both teachers and students in the learning environment. For example, one of the critical issues in physical education is related to gender equity (Kirk, 2012). A common behavior in physical education settings observed is teacher’s unconscious gender-biased verbal comments (e.g., “throws like a girl”, “be the man”, “girls can’t do this”,etc.). The messages conveyed by those teacher comments often encourage gender biases among students, discourage female students’ active participation in PE classrooms, and lower self-esteem of male students who are not athletic. This consistently happens because of teachers’ lack of awareness of and knowledge about gender bias and the non-explicit stereotypes perpetuating in their classrooms (Duffy, 2013).