The Role of Concrete Manipulative Materials in Improving Achievement Level of Visually Handicapped Pupils in Mathematics: Unterschied zwischen den Versionen

# There is a significant statistical difference at the level of 0.05 between the mean ranks of marks of the two groups of the study i.e. the experimental and the controlling groups, for the experimental group. This appears in the post achievement test on the unit of the algebraic terms and expressions studied by the first preparatory students.

# The effectivness of the modified concrete manipulative materials in enhancing the achievement level of the first preparatory visually handicapped students concerning the unit of algebraic terms and expressions.