Reviews the development of spatial organization in children with blindness. Discusses the importance of motor exploration, tactual development, and spatial representation as critical factors in developing spatial and cognitive organizations of their surroundings. Suggests seven specific activities to improve spatial organization in blind children.…

The article suggests that Belcastro rods, which retain the basic properties of Cuisenaire rods but allow instant identification by touch, may be useful in teaching mathematical concepts to blind children. Drawings illustrate use of the rods in teaching such concepts as addition and subtraction. (Author/DB)

Two studies using the concepts and research techniques of J. Piaget were conducted to compare cognitive processes in 45 blind children (2-to-12-years-old) and a random sample of sighted children. (SB)

A follow-up account of a mother's attempts to provide her blind daughter, now aged six, with knowledge of the physical world through the manipulation of three-dimensional objects and two-dimensional tactile representations. The case is made for the value of pictures to the development of children's understanding in general; and for the child who…

Various counting tasks were presented to 24 congenitally, totally blind children, aged 3-13, to determine the behaviors employed to ensure accurate counting. Three dimensions of tactile strategies were found, including "scanning,""organizing," and "partitioning." A developmental progression in the ontogenesis of each…