Maria Theresa C. Savella teaches all levels of Tagalog (Filipino). She is co-author with John Wolff and Der-Hwa Rau of Filipino Through Self-Instruction (1991, rev. 2005), a four-volume textbook that contains sufficient teaching materials for four semesters of semi-intensive Tagalog instruction from the beginning to the intermediate level. She and Wolff also compiled reading materials in a Tagalog reader for the intermediate and advanced levels. She has continued to engage in the development of supplementary pedagogical materials and collaborative projects on assessment of language proficiency over the years.