Salsabila, E. and Hajizah, M.N. 2023. Hypothetical Learning Trajectory of Sector Area and Arc Length Using the Clockwork Context. PYTHAGORAS Jurnal Matematika dan Pendidikan Matematika. 18, 2 (Dec. 2023), 176–186. DOI:https://doi.org/10.21831/pythagoras.v18i2.67027.