Dr. Teddy B. Osantowski distinguished herself as an outstanding educator in Illinois and was a college instructor at Prairie State College in Chicago Heights, Illinois. She established the Dr. Teddy B. Osantowski Textbook Fund, through the Prairie State College Foundation, to help needy students buy textbooks. She was Director of Special Education for the Posen-Robbins School District in Illinois.

She taught in Chicago's inner-city schools for 38 years. She devised an enrichment program for autistic children and presented it in Nevada's Clark County School District for 3 years. It is still used in the district. She was an adjunct faculty member at the University of Nevada at Las Vegas (UNLV) for two years.

She is a published author of "The Little Survivor" and "The Black Landed Gentry of Montgomery County." She has presented her "Hands-on Phonics in Reading" (HOPIR) at local, national, and international conferences. This program is geared toward non-readers of all ages, but is highly effective for remedial learning also. It reduces the restless behavior of the highly active male learners.

She is a member of community service organizations in Las Vegas: Delta Sigma Theta Sorority, the National Coalition of 100 Black Women, and is a Board Member of the Achievement Academy. In Illinois, she was president of the Gavin Foundation, which assists medical students with tuition; Publicity Chair of the Panel of American Women, which held workshops to improve racial relations; member of the Park Forest Photography Club, from which she won many honors; Chair of the Domestic Violence/Substance Abuse Education Committee of the Sixth Municipal Court District of Cook County, which educated community leaders about the underlying causes of domestic violence and drug abuse; and Forum leader of community spokespersons, sponsored by the Chicago Council of Exceptional Children.

She and her husband live in Henderson, Nevada and are the parents of two adult sons.