Students can learn to make algebra, trigonometry, and geometry work for them by using matrices to rotate figures on the graphics screen of a graphing calculator. Includes a software program, TRNSFORM, for the TI-81 graphing calculator which can draw and rotate a triangle. (MKR)

Addresses issues related to the use of microcomputers for solving problems. Includes considerations of the impact of software availability, the nature of software for chemical education, general-purpose software, and dedicated software. (JN)

Focuses on two teachers who had made no use of DERIVE with their classes but who agreed to make regular use of DERIVE with one of their classes over the course of one year. Presents teachers' accounts of what they did. Discusses time issues in using DERIVE, the use of materials, pressures on teachers that influence their use of DERIVE, and the…

Presented are instructions for activities in which a calculator is used to investigate algebraic concepts. Also presented are short computer programs involving topics taught in prealgebra and an activity in which a trapezoid is transformed into a circle. (JN)

Discusses the Texas Instruments calculator the TI-92 and how it can be an effective tool in the mathematics classroom. Provides examples of combining the algebra capabilities of the calculator and Cabri-Geometry II with graphing, tables of values, statistics, programming, and a simple text editor to enhance mathematics instruction. (DDR)

This article discusses the impact of symbolic-manipulation systems on secondary school mathematics curriculum. Characteristics and possible roles for the symbolic systems are explored. Four references are listed. (YP)

Describes how students in a 10th-grade geometry class discovered relationships that led to the development of conjectures, theorems, and directions of proofs regarding the centroid of a triangle. (ASK)

Discusses the impact of technology such as graphing calculators or statistical software packages on statistics instruction and curriculum as it makes teaching some topics unnecessary, makes instruction in some topics better, and allows for the teaching of some topics that have never been taught. (ASK)

Argues that before topics are added to or deleted from the traditional mathematics curriculum, it should be determined how technology can be used to teach that content. (PK)

Activities to extend the core curriculum through the study of the periodicity of rational numbers to help students develop calculator and research skills are presented. Four worksheets are included, to be used as discovery activities. A computer program is listed, as well as examples of periodic pictures. (MNS)

Describes the preparation of preservice secondary mathematics teachers in the uses and implications of classroom technology. Presents four areas of technology: (1) programing; (2) utility programs; (3) calculators; and (4) implementation of instructional software and communication packages. (Author/YP)

Presents activities which use graphing calculators to explore parametric equations of spirals, circles, and polygons. (MKR)