This study aimed at assessing the effectiveness of school boards in promoting quality teaching and learning in secondary schools. The study focused on three specific objectives which were to examine the roles of school boards in promoting quality teaching and learning, to investigate the challenges facing school boards, and to establish the solutions to the challenges facing school boards in ward secondary schools. This study used a mixed research approach. This study employed explanatory sequential design. Data was collected through questionnaires for quantitative data. Interviews and document analysis were used to collect qualitative data. The study involved seventy two school board members (SBMs), twelve Heads of School (HoS), one District Chief of Schools Quality Assurer (DCSQA), two District Education Officers (DEOs) for Bunda Town Council and Bunda District Council, and one Zonal Chief of Schools Quality Assurer (ZCSQA). The study found that roles of school boards are such as approving or disapproving dismissal of students from school due to indiscipline cases, approving school budget and plans, and approving the hiring of part-time teachers as well as mobilizing resources from the local community so as to promote quality teaching and learning in schools. The study found that the effectiveness of school boards in Bunda is low. The study found that school boards in Bunda district face challenges such as lack of motivation to SBMs, lack of commitment among SBMs, weak board members selected including very low education level reached by SBMs, poor leadership by HOS, inadequate fund brought to schools by the government as Capitation Grants (CGs), poor support from education supervisors, and lack of regular training for capacity building. The study suggest that regular training to SBMs should be organized, modifying the system of selecting SBMs, and providing seating allowances to school board members.