Abstract
This study assessed the level of performance in Mathematics of Grade 3 learners at Francisco Balagtas Elementary School, District III, Division of Manila, during the School Year 2024–2025 using a quantitative-descriptive research design. The study aimed to determine the learners’ level of performance in Mathematics, identify their specific areas of weakness, develop support learning materials to address these weaknesses, and evaluate the acceptability of the proposed materials as assessed by the school head and Mathematics teachers. The respondents of the study consisted of 328 Grade 3 learners and three Mathematics teachers. Data were gathered through Mathematics assessment results and evaluation instruments for the support learning materials. Findings revealed that 38.11% of the learners demonstrated a high level of performance, 48.48% showed an average level of performance, and 13.41% exhibited a low level of performance in Mathematics. The major weaknesses identified among the learners included two-step word problems involving addition, addition of dissimilar fractions and whole numbers, equal fractions, and other fundamental mathematical skills. Based on these findings, support learning materials were developed focusing on targeted lessons and exercises to improve learners’ mathematical understanding and skills. The acceptability of the support learning materials was evaluated in terms of content, quality of presentation, and physical make-up. Results showed that the materials were rated “very acceptable” by both the school head and Mathematics teachers, indicating their suitability for classroom use. The study concludes that the developed support learning materials can effectively address the identified weaknesses of Grade 3 learners and contribute to improving their overall performance in Mathematics.