1. The study helps the teachers and the program designers of the visually handicapped pupils to acknowledge the ways concrete manipulatives materiales are used in some activities - that make use of the rest of the senses - to teach and improve some mathematical concepts and skills.
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2. Designing some activities that are based on using concrete manipulatives materiales, and that can be used with the visually handicapped pupils.
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3. Getting the teachers of the visually handicapped to consider the importance of using concrete manipulatives materiales in teaching mathematics to their pupils.
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4. Presenting a humble contribution in answering the increasing need for large number of studies in the field of mathematics for the visually handicaped. The suggested unit is considered a step towards designing and using precisely measured progams for such students.