In the summer of 1921, Ware became a teacher at the Bryn Mawr Summer School for Women Workers. One of the school's main founders was Hilda Worthington Smith, a labor educator who believed female workers required a broader education than only vocational training. Smith became a lifelong friend of Ware, and influenced Ware's pedagogy. As a teacher, Ware provided the workers with a liberal arts education, many of whom had left school after the sixth grade. Following her experience at the Bryn Mawr Summer School, Ware continued to teach worker education classes throughout her life.