Single gender refers to the practice of separating men and women in public areas, typically in educational institutions. This is often referred to as single-sex education.
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Single gender education involves the complete separation of males and females in an educational setting. Typically, this means that females are educated in separate classrooms, buildings, or institutions from men. This practice was particularly common in higher education, such as middle school, high school, or post-secondary education. This practice is fairly outdated in North America, but it does still occur in many areas of the world.