Education is a necessary tool for national development and for development to take place, it is important that teachers who are the driving force of passing instructions to students in the school must be properly mentored for them to carry out their assignments. It is on the basis of this background that this study was conducted. Descriptive survey research design was found suitable for the study. A multistage sampling technique was employed in this research and 100 respondents were selected for (...) the study. Four research questions and hypotheses were raised and formulated and a questionnaire titled mentoring strategies and school effectiveness was developed for data gathering. The instument was validated and the reliability co-efficient of .84 was achieved. The finding revealed that there was significant relationship between mentoring strategies and secondary school effectiveness in Ilorin East, Kwara State. It was recommended among other things that teachers should be trained using mentoring strategies and that school administrators should ensure activities which will involve pairing new with experienced teachers so that they will gain new experience from the models. (shrink)