The difference between estimation (the mental skill of making an educated guess) and approximation (finding a result precise enough for a specific purpose) is discussed. (MNS)

Effective use of calculators is briefly discussed, and the importance of estimation noted. One example involving completion of a table is given. (MNS)

The calculator is used in conjunction with the measurement of the sides of right triangles to discover the Pythagorean property. (MP)

An activity unit is presented in which the minicalculator is used in determining the student's paces or steps per kilometer and their measuring distances. (MN)

Three examples are presented which involve constructions employing a compass, a centimeter ruler, and a calculator. Employing mathematical tools to support understanding and discovery of mathematical principles is viewed as being clearly a desire of mathematics educators, but it is felt such tools are not frequently used to their fullest. (MP)

The material presented is designed to help students explore geometric patterns involving Fibonnaci numbers and the golden ratio, and to aid in review of basic geometry skills. Worksheet masters intended for duplication are provided. Suggestions are made of possible classroom extensions to the initial activities. (MP)

This annotated bibliography includes activities with calculators in the areas of computational skills, geometry, measurement, number pattern recognition, and probability. (MK)

Describes six crystallographic programs which have been developed to illustrate the range of usefulness of programmable calculators in providing computational assistance in chemical analysis. These programs are suitable for the analysis of x-ray diffraction data in the laboratory by students. (HM)

This book, written for parents, presents short mathematics activities for use with young children. Most chapters contain an overview, educational objectives, needed materials, an estimate of initial time investment, introduction and preparation instructions, and activities. Activities are grouped as follows: kitchen math, calculators, measurement,…

This outline is for a pre-algebra course designed to prepare students for algebra or to satisfy a one-year mathematics requirement. A key purpose is to present a practical mathematical experience. A detailed outline is given with a suggested time allotment for each chapter. A discussion of each topic follows with teaching suggestions and examples.…

Flow diagrams developing cube roots and formulas for the square, sphere, cube, circle and sector, oblong, and cylinder are presented. Some comments on their use, along with calculators, are included. (MNS)

Changes in the elementary and junior high school mathematics curriculum that have occurred in the last 20 years and that may occur in the future are discussed. (MK)

The twenty-two essays on problem solving included in this publication give ideas and examples for use in the classroom at all levels of instruction. Topics discussed in the essays include but are not limited to: problem posing, clues from research, story problems, calculators, textbook problems, and measuring problem solving. Polya's heuristics as…

Ways of solving a problem on the connection between heat loss and the ratio of surface area to volume are described. Tables and graphs are included. (MNS)

Included are several general principles pertaining to the uses, applications, and accuracy of significant digits when mathematical computations are performed with calculators. Examples are provided that illustrate how misunderstandings can arise from the misapplication of these principles. (JJK)