Mary McDonald-Lewis taught a class called "Accent Intervention" where she outlined a step-by-step process for acquiring dialects and guided students through each step. Students found the class to be empowering as it gave them a systematic way to work on dialects at home with Mary's further feedback. Reviews praised Mary as an expert who taught accents can be acquired through hard work and methodology, not just mimicry. Students were excited to continue learning scientific and practical tools from Mary to build accents like Estuary English.