TAGLE (Transformation Acquired from Good Learning Environment): THE DEVELOPED LOCALIZED SUPPLEMENTARY INSTRUCTIONAL MATERIALS FOR ARALING PANLIPUNAN 9 LEARNERS IN LOS BAÑOS NATIONAL HIGH SCHOOL-POBLACION

The main objective of the study was to developed Localized Supplementary Instructional Materials in Araling Panlipunan 9. This study aligned to the Design and Development Research Method design. Through a simple random sampling technique, the respondents of the study were 80 Grade 9 learners from Los Banos National High School Poblacion and 18 Araling Panlipunan secondary school teachers compose of Head Teacher, Master Teacher, Coordinator, and Araling Panlipunan Teachers from the District of Los Banos. Using four-point Likert Scale and the simple mean, t-test for independent samples findings revealed that the developed localized supplementary instructional materials in Araling Panlipunan 9 based on the assessment of the Araling Panlipunan teachers in terms of objectives, directions, topics and practical exercises were all highly valid. Meanwhile, the level of acceptability of the developed localized supplementary instructional materials in Araling Panlipunan 9 were all highly valid based on the assessment on the Araling Panlipunan teachers in terms of clarity, usefulness, presentation, and suitability. There was a significant difference in the academic performance level of the learners comparing the mean scores of the learners during the pretest and posttest. The developed localized supplementary instructional materials in Araling Panlipunan 9 evidently increased the acquisition of learning of Grade 9 learners based on the difference in their performance in the pretest and posttest.