Early experience with grouping objects is valuable for later understanding of and work with place value, division, and multiplication. Examples are drawn from the Developing Mathematical Processes Curriculum Project at the Wisconsin Research and Development Center for Cognitive Learning. (RS)

Mathematical concepts to be used in the classroom - Pythagorean Triads" A Chain of Parabolas," and others. (RP)

Presents three algorithms for changing decimal fractions to basic five (quinary) fractions, or for any base to "b-ary fractions. (RP)

Four computer programs (Applesoft Basic) on prime numbers are described, including programs for factoring a positive integer as a product of primes, listing all divisors of a given A, and for exploring primes representable as prescribed sums/differences involving squares, cubes, Fibonnaci numbers, or other primes. Program listings are included.…

The use of fingermath, a form of arithmetic computation with the fingers, is compared to use of the abacus in helping visually impaired and blind students develop mathematic concepts. Fingermath is explained to be more concrete, simple, and accessible. (CL)

Programing a computer to list subtraction palindromes is discussed. Sample programs and output are included. (MNS)