This study has investigated the influence of teaching methods on the academic performance of Mathematics students in public secondary schools located within Emuhaya Constituency, Vihiga County, Kenya. Rooted in Behaviorist Learning Theories and the theory of performance, the research aimed to assess how different teaching methods affect educational outcomes in Mathematics. The study employed a survey research design, utilizing census sampling to select 156 participants from three strategically chosen secondary schools in Emuhaya Constituency. Primary data was collected through a meticulously designed structured questionnaire. The collected data underwent rigorous analysis, employing multiple linear regression to test various hypotheses. In Chapter Four, the findings were interpreted and discussed based on the study objectives. Key findings included the positive impact of the Demonstration Method and the Discussion Method on students' academic performance in Mathematics (p < 0.05) it indicates that the finding is statistically significant, meaning there is less than a 5% probability that the observed result occurred due to random chance.. Conversely, Teachers' Proficiency showed a statistically significant negative relationship with students' performance in Mathematics (p < 0.05), confirming initial research hypotheses. Chapter Five provided a summary of findings, conclusions, and recommendations. The findings highlighted the effectiveness of interactive teaching methods like the Demonstration and Discussion Methods in enhancing student performance. Recommendations emphasized the need for teacher training in effective pedagogical approaches and the importance of adequate learning resources. Further research suggestions included longitudinal studies on teaching methods and the impact of emerging technologies in Mathematics education. The anticipated results from the regression analysis confirmed the hypotheses, providing compelling insights into the factors influencing Mathematics education in Emuhaya Constituency, Vihiga County, Kenya.