Galanza, J.A. and Sabado, A. 2026. Exploring the Mathematics Comprehension of Grade IV Pupils in Rizal District, Kalinga: Instruction, Motivation, and Challenges. International Journal of Sustainability and Advanced Integrated Research. 2, 2 (Jun. 2026), 3143–3149. DOI:https://doi.org/10.65339/ijsair.V2.I2.557.