The purpose of this investigation was to determine the relationship between the acquisition of conservation skills and achievement in mathematics. The conservation skills measured were numbered, mass, area and volume. Mathematics achievement was measured by the Computation, Concepts, Problem-Solving and Total Mathematics scores on the Metropolitan…

Compared the computational performance of two groups of arithmetic teachers: one group tested in 1930 and the other in 1973. Results indicated that the 1973 teachers performed significantly better than the 1930 teachers. (JMB)

Presents the use of quantity calculus in calculations arising in volumetric analysis and in the more general field of chemical stoichiometrics. (HM)

Described are two methods of calculating developed by the Dutch WISKOBAS Project: addition and subtraction with a loop abacus and multiplication using a grid model. (MP)

The objective were to explore some of the ways in which the calculator can be used and to determine the effects. Areas covered are: computation, mathematics readiness, problem solving, and discovery learning. (MP)

This bibliography lists books containing classroom-ready materials that can be used in conjunction with routine mathematics lessons. A description is given of six of these books. (MP)

Results are given of a 14-question survey of students related to the use of calculators in school. The use of mathematical tables as opposed to calculators is discussed. (MP)

The new, and prevalent, raised-dash notation (for subtraction) appearing in school mathematics texts is examined, especially for its effects on students' computational skills. Reasons for a return to the standard notation of the centered dash are presented. (Author/MN)

Describes the use of programmable calculators to perform classroom controlled experiments on economic models. The complete program for exploring the dynamics of the Harrod-Domar equation is given. Some difficulties encountered and statistical uses are mentioned. (BC)

The use of calculators in mathematics classes of eight-year-olds was investigated. Results showed that the experimental classes were quicker and more accurate in addition, subtraction, and multiplication than the control classes at the end of the year. (MN)

A method for approximating the nth root of any positive number that requires only a four-function calculator with a square-root key and repeat multiplication capability is given. (MN)

A brief account of the controversial arrival of the use of the electronic calculator in schools and examinations in Scotland is given along with suggestions for future calculator usage. (MN)

A restaurant menu is used to apply mathematics to real situations. A variety of mathematical problems, as well as applications to other content areas, is suggested. (JT)

A motivational game providing practice in computing and problem solving is described. (JT)

Computational science is defined as science done on a computer. A computer can serve as a laboratory for researchers who cannot experiment with their subjects, and as a calculator for those who otherwise might need centuries to solve some problems mathematically. The National Science Foundation's support of supercomputers is discussed. (MLW)