Gender differences in achievement have been widely documented and a number of feminists, particularly from the West, have used the concept of identity to explain them. This paper draws on constructions on gender and achievement generated through surveying 59 boys and 103 girls from four secondary schools, as well as interviewing 40 of the girls in order to contribute to our understanding of identity construction in an African context. The data show that the majority of boys and girls support dominant gender norms, but there is some indication of fluidity. Thus, the notion of identity formation is crucial to the analysis and interpretation of the findings, as it highlights the possibility for agency and change, since gender identities are not stable.