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Andriatna, R., Sujadi, I., Kurniawati, I., Wulandari, A.N., Nursanti, Y.B. and Kanya Barndt 2026. Hypothetical Learning Trajectory for Negative Integer in Differentiated Instruction: A Prospective Analysis in Didactical Design Research. Hipotenusa: Journal of Mathematical Society. 8, 1 (Apr. 2026), 27–42. DOI:https://doi.org/10.18326/hipotenusa.v8i1.2195.