Children ranging in age from three to six years counted 7, 10, and 14 items arranged in columns or in rows. Developmental changes in the spatial strategy and the relation of strategy to accuracy were examined. (JMB)

The role of common fractions in mathematics education and in applications is discussed in light of the increased importance of calculators and the metric system. (MP)

The computer programs require the students to show that they understand the calculations by processing one set of data correctly themselves before the remaining sets are computed for them. (MP)

The study reported is the first in a series of investigations designed to empirically test the hypothesis that calculators reduce quantitative working time and increase computational accuracy, and to examine the relative magnitude of benefit that accompanies utilizing calculators compared to manual work. (MN)

A program is presented which enables a programable calculator to become a device to check the arithmetic computational skills of students. (MP)

Conjecture and proof, as opposed to numerical calculation, are presented as being the primary focus for teaching mathematics. (MP)

Directions are given for preparing a puzzle that may be used to provide practice in computation. (MP)

The use of the calculator is suggested in teaching algorithms for the four basic operations, in place of any difficult standard algorithm. (MP)

Suggestions are given for using the calculator in junior high classrooms. Square roots, factoring, and percentages are some topics discussed. A worksheet is included. (MP)

Algorithms for generating random numbers are discussed along with disadvantages. A program for a programable calculator is given that overcomes those disadvantages. (MP)

Instructions are given for using and programing programable calculators. Several problems and examples are given that include topics such as temperature conversion, estimation, and number operations. (MP)

Discusses how electrostatic interactions can be taught quantitatively through Coulomb's Law at a variety of points in a chemistry curriculum. Each type of interaction is shown at both the intramolecular and the inter-"molecular" levels. (MR)

The topics discussed are, "Helping Students Understand the Distributive Property,""Converting from Base 10: Nonintegral Bases?,""Rapid Mental Squaring of Mixed Numbers," and "Some Nonstandard Binary Operations and their Properties." (JT)

The use of trigonometry in making astronomical calculations prior to the invention of logarithms is discussed. (JT)

A question as to the number of stitches needed for a particular triangular crocheted scarf gives rise to the use of several methods of solution including arithmetic series. (MN)