The use of programmable calculators for the simulation of experiments is discussed and five examples of specific applications are provided. (DT)

The study involving 183 learning disabled and 852 nondisabled children (grades 3 through 6), investigated students' performance on arithmetic basic fact problems in addition, subtraction, and multiplication. Three separate group administered tests were devised, covering 98 basic addition, 98 subtraction, and 98 multiplication facts. Children were…

An approach to teaching mildly retarded children math skills using finger calculation is discussed. Drills progress from using one to two hands and doing multiplication and division. The appropriateness of finger calculation with children in the sensory motor and preoperational stages of development is noted, and the approach's ability to enhance…

The first step of an energy conservation program is to monitor energy consumption. A system is explained that, in order to determine which buildings are energy efficient (considering all types of energy that a building might use), monitors total energy consumption. All such consumptions can be reduced to a common denominator: Barrels of Energy…

An explicit model of the process of quantification which involves the operations of subitizing and counting is described. The general model states that quantification of n items takes place via subitizing when n is less than five and via subitizing and addition (that is, counting) when n is five or larger. The explicit model is stated in the form…

Binomial coefficients are used to prove two conjectures concerning the partitioning of an N-dimensional space. (MP)

Three calculation methods were compared in solving problems involving frequency distributions, manual, basic calculator, and advanced calculator. Calculators were more efficient but there was no difference in calculator type. (MP)

The cognitive and psychomotor processes involved in working with the modern Japanese version of the abacus were investigated by distracting expert abacus operators in various ways. (Author/MV)

Two experiments (N=36) using a new, objective methodology for measuring relative image generation time demonstrate that images of three-dimensional objects evolve a part at a time. It also appears that the images are generated in a near-to-far sequence. Results are discussed in terms of computational and ecological considerations. (TJH)

Six easy-to-learn strategies are offered to help students with learning problems in mathematics make error-free subtraction calculations when either the subtrahend or remainder is a 9, 8, or 7 and when the minuend is in the teens. (CB)

The study compared the improvement in computational skills of two similar groups of accounting students, one using calculators in examinations and the other not. Not using calculators seems to improve the arithmetical ability of students, but does not significantly improve students' feel for numbers or ability to solve word problems. (CH)

After reviewing several assumptions that support the future ubiquitousness of computers in society and in scholarly research, summarizes three interrelated frameworks for developing instructional computing. (GC)

Proposes the hypothesis that preschoolers have number concepts based on the numbers 1-5 rather than on the decimal structure. Results suggest that children understand numbers to 5 as a privileged anchor. Proposes a new model for a representational system of numbers. (Author/DR)

This paper on the language of zero (1) deals with the spoken and written symbols used to convey the concepts of zero; (2) considers computational algorithms and the exception behavior of zero which illustrate much language of and about zero; and (3) the historical evolution of the language of zero. (JN)

Although breathing is a universal activity among physicists (and others), few have bothered to estimate the number of molecules inhaled in a single average breath. Some simple calculations and comparisons related to this phenomenon are provided to improve students' appreciation of the awesome numbers related to Avogadro's number. (JN)