This document discusses gender concepts and roles. It describes how gender roles are defined by perceived biological differences between men and women, leading to different treatment and opportunities in social, economic, political and educational spheres. Specifically, it notes differences in access to careers/resources, social roles and expectations, involvement in power/authority, and educational opportunities between genders. It also defines equality as equal resources/opportunities, equity as allocating what is needed for equal outcomes, and discusses how to achieve gender equality and equity. Finally, it outlines four common manifestations of gender bias: violence against women, subordination, economic marginalization, and gender stereotyping.