Describes a program written in BASIC, called BIGNUM, that was designed to aid in handling big numbers. The program adds, subtracts, multiplies, divides, and raises to a power integers of up to 1024 decimal digits and is thought to be usable on many types of machines. (MP)

Sixty children aged 2-3 to 5-6 were given four quantity tasks that tested their understanding of "more" and "same." Tasks involving a manipulative response were significantly easier than those involving a yes/no judgment. (Author/RH)

Suggests that ordinal and ratio criteria for equity are independent of one another, but that a plausible mathematical definition of equity must satisfy both criteria under all outcome/input ratio situations. Demonstrates that a modification of the Harris linear formula for equity meets these criteria. (Author/RD)

This article estimates to what extent changes in the unemployment rate over the past two decades have reflected basic cyclical factors in the demand for labor and to what extent they may stem from noncyclical factors. (BM)

Described is the calculator's place in the classroom and its potential for reshaping our computationally oriented curriculum. Activities are suggested for ways calculators can effectively be used to develop four types of mathematical thought. (Author/DS)

Twenty-eight sources on calculators are listed in this partially annotated bibliography. (MK)

The article seeks to illustrate that calculators and problem solving complement each other perfectly. (MK)

A discussion is given of calculators in the classroom. Opinions and recommendations of various groups are incorporated. (MK)

Included are a detailed example of a calculator demonstration, the general principles to be followed in preparing a calculator demonstration, a list of demonstration topics for a calculus course, and some suggested topics for other courses. (MK)

An activity is described for introducing some fundamental notions in inferential statistics to students in elementary high school statistics courses. (MP)

A description is given of an approach to teaching a remedial mathematics course using calculators as a complete substitute for paper-and-pencil calculation. (MP)

Specially designed materials were used for teaching trigonometric ratios to 131 ninth- and tenth-grade students, one group using calculators and one not. Results on achievement were mixed. (MP)

Comparison of the computation ability in addition, subtraction, multiplication, and division of 155 students (ages 9-14) with learning disabilities (LD) and 266 normally achieving (NA) students demonstrated that NA students outperformed students with LD. Students with LD had more algorithmic errors, and failed to show growth patterns by age. NA…

Discussion of connectionist views for adaptive clustering in information retrieval focuses on a connectionist clustering technique and activation spreading-based information retrieval model using the interaction information retrieval method. Presents theoretical as well as simulation results as regards computational complexity and includes…

Suggests use of the quadratic formula to build understanding that connections between factors and solutions to equations work both ways. Making use of natural connections among concepts allows students to work more efficiently. Presents four sample problems showing the roots of equations. Messy quadratic equations with rational roots can be solved…