Catherine Beecher - an American educator known for her forthright and innovative opinions on education as whole and female education specifically - believed that women had a natural aptitude for teaching because that was already part of what being a housewife and a a mother entitled. She believed that public schools had a duty of teaching moral, physical, and intellectual development of children, which was in part already done by women at home, also she had the belief that women had inherent traits that made them the preferred sex as teachers, thus teaching became a natural extension of women's rule at home.
Furthermore, Catherine was a true visionary, as she saw that men left teaching to pursue business and industry, which made teaching the perfect space for women's empowerment on society.