The research study focused on the acceptability and validity of the Per-C-Pro Mobile Application in the Academic Performance of Grade 10 students at Upland Integrated National High School, School Year 2021?2022. The study aims to identify the level of validity and acceptability of the developed Per-C-Pro mobile applications in teaching mathematics at Upland Integrated National High School.The research involved fifteen (15) mathematics and ICT teacher respondents in this study, who are the experts in validating the designed Per-C-Pro mobile application and 40 Grade 10 students at Upland Integrated National High School in the District of Nagcarlan. The descriptive method of research was employed in conducting this study, which involved the gathering of the essential data and information tested the hypothesis and answered the questions concerning the research problems of the study. Questionnaire in the form of a checklist was utilized in the gathering of needed information and in the completion of the investigation. The statistical treatments applied in the study consisted of mean and the 4 -point Likert Scale was applied to determine the level of validity and acceptability of the designed e-mobile application for teaching Mathematics. The t-test for independent samples was used to identify if there would be significant difference in the performance of Grade 10 learners in their pre-test and post-test. Findings revealed the following: (1) The teachers evaluated the developed Per-C-Pro mobile applications in terms of objectives, discussion, practical exercise, and assignment. It was highly valid and acceptable, which implies that it has content that is useful in teaching mathematics. (2) The developed Per-C-Pro mobile applications are highly acceptable in terms of clarity, usefulness, language style, and illustration, which implies that they have characteristics that are effective for engaging students in learning. (3) Post-test is higher than pre-test, maybe because they have learned more after the discussion of the lesson and after using different materials for learning. (4) "There is no significant difference in the performance of students as to pretest and posttest," is rejected and calls for the acceptance of the alternative.

Mobile Application

Mobile Learning

Mathematics Education