Zephrinus Chidubem Njoku

From 1983 to 1988, he was employed as senior science master, (chemistry & integrated science), at Premier Secondary School, Ukehe. From 1989 until 1992, he was senior science master at Queen of the Rosary Secondary School, Nsukka. In 1990, he obtained a Master of Education (M.Ed.) degree in science education from the University of Nigeria, Nsukka. He was employed as lecturer in the Department of Chemistry, Federal College of Education, Eha-Amufu, and was appointed head of the Department of Chemistry from 1992 to 1994, and again from 1996 to 1998. Njoku was promoted to principal lecturer, Department of Chemistry, Federal College of Education, Eha Amufu, in 1996.

In 1998, he earned a Doctor of Philosophy degree (PhD) in science education (chemistry) from the University of Nigeria, Nsukka. His PhD thesis was entitled, "Effects of Practical Work under Different Sex Groupings on Students' Skills Acquisition and Interest in Chemistry Practical Activities".^[4]

He left as principal lecturer at the Department of Chemistry, Federal College of Education, Eha Amufu, Enugu State in 2000. That same year, he was employed in the University of Nigeria, Nsukka, as senior research fellow/lecturer. In 2006, he was promoted to professor of science education. Njoku was appointed head of the department in 2014 and he served until 2016. Njoku delivered the 182nd inaugural lecture of the University of Nigeria, Nsukka, on June 22, 2023. The lecture was entitled, "Abstractions and misconceptions: pedagogical approaches towards reducing students' learning difficulties in school chemistry".^[5]

Njoku is a research specialist in science & technology education; gender studies; gender issues in education and training. He is also a specialist in education sector strategic planning and operational planning. Njoku is a technology education consultant in basic education and science, and, in education, and educational interventions on HIV/AIDS control efforts. Njoku is also an expert in project planning and execution; an expert in project monitoring and evaluation; and a behavior change communicator.^[1]