To help alleviate the alarming performance of students in Mathematics, teachers are encouraged to devise different strategies to address the challenges of students in dealing with mathematics. This may include crafting learning materials such as Self-Directing Learning material. This kind of learning material is crucial in developing students' mathematical proficiency because it allows them to learn at their own pace and time as long as it possesses the necessary features of good learning material. Hence, the study aimed to develop a Self-Directed Learning material to provide students with another reference tool that they may use to improve their performance. It utilized pre-test and post-test design to determine the effectiveness of the treatment. A total of 50 students were involved in the study and 6 mathematics experts were included in the evaluation of the self-directed module. The instruments used to gather the necessary data were validated by experts and were administered for pilot testing. The result of the pre-test showed that the students had a very limited knowledge of Mathematics. The low performance of the students during the pre-test was mitigated with the help of the self-directed module which also revealed a very large difference effect on students' performance. Furthermore, both students and experts strongly agreed that the self-directed module possesses the necessary features of good learning material and helps mitigate students' performance in Mathematics. Hence, students may adopt the self-directed module as another reference tool to gain necessary skills and teachers may develop more learning materials to address students' needs and demands in dealing with mathematics.