In 1980, Agwu returned to Nigeria. She studied mathematics at the
University of Nigeria, Nsukka, earning a bachelor's degree with honours in 1984. On the recommendation of two of her university teachers,
James O. C. Ezeilo and Isabelle Adjaero, she went to the
University of Connecticut for graduate study, the same university where Adjaero earned her PhD. Agwu started her studies there in 1987, after working as a government statistician and as a lecturer at
Kaduna Polytechnic. Her start at the University of Connecticut was delayed as she spent a few years lecturing at
Kaduna Polytechnic. Agwu was not able to attend at first due to lack of finance but, her studies were funded by a
Mathematical Association of America travel award and an award to fund the study of the uses of the history of mathematics in teaching. Agwu completed a master's degree in mathematics at the University of Connecticut in 1989. She moved to the
Syracuse University, where she completed her Ph.D. in mathematics education in 1995. Her dissertation,
Using a Computer Laboratory Setting to Teach College Calculus, was supervised by Howard Cornelius Johnson. At Syracuse, her course of studies also included gender studies and multicultural education, and she was president of the African Students Union and of the Association of International Students. ==Career and contributions==