*The results and recommendations of the previous studies and international projects in the field of teaching mathematics related to the subject of the study in general and teaching to the visually handicapped in particular, which have shown the importance of teaching mathematics for the visually handicapped in a manipulative method that depends on the rest of the senses. | *The results and recommendations of the previous studies and international projects in the field of teaching mathematics related to the subject of the study in general and teaching to the visually handicapped in particular, which have shown the importance of teaching mathematics for the visually handicapped in a manipulative method that depends on the rest of the senses. |