She supported both teachers and parents as well as governesses in a variety of settings.
Mason made a major contribution to method through the concept of narration, where children would retell what had been learnt from parent or teacher. She demonstrated that children could accurately recall what they had heard or read and believed this was of great value to developing the skills and confidence of young learners.
Home educators today often use verbal communications through a process of what Professor Roland Meighan called Purposive Conversation which draws upon similar processes described by Mason many years earlier and one that in an ever more aural world, will become ever more important.
She also believed that parents had to be heavily involved and central to the educational processes. The Times obituary said of her “her personal influence was more widespread than that of any other educationalist of her time.” And called her a “pioneer of sane education”.
Writing as she did in the turn of the 20th century, she can be regarded as a pioneer of theory and practice of home and child centered education.