In Tanzania, the education system focuses on schools and teachers as key educators of children, while little attention is paid to the home environment. This study examines motivational factors that may influence parental involvement at home and at school, using Hoover-Dempsey and Sandler's model of parental involvement as a theoretical framework. Participants were 580 parents of Grade 2 children attending primary schools in three districts of Dar Es Salaam. Parents were invited at school to complete a questionnaire. Regression analyses showed that parents' expectations for children's school success predicted home involvement, next to parents' perceived time and energy, child invitations and parents' self-efficacy. School involvement was predicted by perceived time and energy, and school and child invitations. In a mediation model role construction had an indirect effect on school involvement through child and school invitations and perceived time and energy. Implications for educational policy are discussed.