The Degree of Difficulties in Learning Mathematics for the Fifth and Sixth Grades from the Teachers’ Point of View and Their Suggestions for Addressing Them. jperc [Internet]. 2022 Mar. 7 [cited 2025 May 5];17(67):221-44. Available from: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/1104