ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA PADA MATERI PYTHAGORAS BERDASARKAN TEORI KASTOLAN DI SMP NEGERI 2 LANGOWAN: ANALYSIS OF STUDENTS’ ERRORS IN SOLVING STORY PROBLEMS ON PYTHAGORAS MATERIAL BASED ON KASTOLAN’S THEORY AT SMP NEGERI 2 LANGOWAN. jsoscied [Internet]. 2024 Nov. 17 [cited 2026 Apr. 19];7(2):610-7. Available from: https://jurnal.poltekstpaul.ac.id/index.php/jsoscied/article/view/860