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Belcastro, Frank P. – Focus on Learning Problems in Mathematics, 1993
This experimental study compared the use of Belcastro rods with the use of traditional methods in teaching addition and subtraction of whole numbers to five blind students. Results showed a significant difference favoring the use of Belcastro rods. (Contains 30 references.) (MKR)
Descriptors: Addition, Blindness, Elementary School Students, Grade 1
