Abstract
This study aims to utilize an adapted Cartesian Plane to teach mathematics topics to visually-impaired students. Utilizing a quasi-experimental design, this research employed a purposive sampling technique. Visually-impaired students in the mainstream served as the subjects of the study. Hypotheses of no significant relationship between the profile of the respondents and their performance in Mathematics; no significant difference between the performance of the respondents in their pretest and posttest; and no significant effect of using Adapted Cartesian Plane to the subjects of the study were tested. The following conclusions were drawn after the analysis: there is no significant relationship between the profile of the respondents and their performance in Mathematics except in terms of their age; there is a significant difference between the pretest and posttest of the respondents; and the degree of effect of using Adapted Cartesian Plane in delivering Mathematics lessons to visually-impaired students is large.
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