The current study was carried out to identify the role of schoolbased factors to influence the students' achievement in mathematics. Cross-sectional survey research under the umbrella of descriptive research of quantitative approach was carried out. With the help of a two-stage random sampling technique, the sample was selected. A questionnaire-based on two sections demographic and 3 factors (teaching methodologies, the working routine of teachers, and resources) were comprised of 5 points

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... t scale developed by the researcher. The validity of the questionnaire was assured with the help of experts whereas reliability was checked through piloting having a value of 0.72. on the other hand, the students' performance was measured through their midterm exams prepared by their mathematics teacher. The findings of this study helped the researcher to conclude that students are agreed that they have sufficient resources in their schools as its mean value is highest among other factors and students achieve satisfactory marks in mathematics as well as there is a positive as well as significant but week correlation between these two variables which highlighted there is the influence of school-based factors on students' achievement in mathematics who are learning in 10 th grade at secondary schools of Lahore. These results provide a guideline to policymakers to update their policies regarding curriculum implementation at the school level regularly by keeping in mind the students' needs, potential, and requirements of the present era.