Aboagye GK, Graham EO. Procedural problem-solving approaches employed by students in learning extensive and intensive quantities of change of state: Procedural problem-solving approaches employed by students in learning procedural problem-solving approaches employed by students in learning extensive and intensive quantities of change of state. gje [Internet]. 2018 Dec. 1 [cited 2024 May 16];4:19-43. Available from: https://journal.ucc.edu.gh/index.php/gje/article/view/492