Raheem al-Hayd, Teacher Dr. Mo’ayad. “Classroom Management Faced by the Math Teacher for the Preparatory Phase Problems”. ALUSTATH JOURNAL FOR HUMAN AND SOCIAL SCIENCES, no. 226 ( 3) (September 1, 2018): 185-204. Accessed November 26, 2019. http://alustath.uobaghdad.edu.iq/index.php/UJIRCO/article/view/91.