Deals with the conversion of electronic hand calculators to timing devices. This article illustrates a conversion of a rather versatile calculator by means of simple and inexpensive circuitry. (HM)

Ways of using the calculator as a vehicle for investigating one aspect of the square root concept are illustrated. (MK)

An example is given of a class of problems whose solutions require the use of a scientific calculator in order to plot the graphs. (MP)

Presents an activity that illustrates how data stored in a matrix or list can be plotted as a graph in the parameter plotting mode on graphic calculators. (ASK)

Discusses the overuse of calculators in mathematics classrooms. Argues that the sole purpose of teaching mathematics is for thinking and discipline and these goals cannot be obtained when using calculators. (ASK)

Offers problems involving baseball to give students the opportunity to utilize the technology of a graphing calculator such as the TI-82 to work on the area of statistics. Gives step-by-step instructions as well as explanations. (AIM)

Cooperative groups were given transparencies of eight regular inscribed polygons and overlays of corresponding circumscribed polygons and were asked to find the perimeters and ratios of perimeter to diameter. Transparencies give students a graphic illustration of limits. Includes reproducible worksheet. (NI)

Describes a calculator exercise that can help students develop a better visual and numeric feel for Newton's method. (KHR)

Describes two-line display calculators and their functions. (Author/YDS)

Demonstrates how to use graphing calculators to explore rational number approximations to irrational numbers. (Author/NB)

Presents a lesson to teach matrices that emphasizes conceptual understanding and allows students to extend their investigations into important and relevant situations by using graphing calculators after important conceptual understanding has been developed. (KHR)

Explores the extent and nature of students' calculator usage as determined from examination scripts in the Western Australian Calculus Tertiary Entrance Examination. Discusses errors made and understanding called upon for seven questions. Discusses instruction and assessment of skills associated with graphical interpretation. (Author/KHR)

Described is an activity demonstrating how a scientific calculator can be used in a mathematics classroom to introduce new content while studying a conventional topic. Examples of reading and writing large numbers, and reading hidden results are provided. (YP)

Middle school and secondary mathematics teachers' (n=94) responses on the Attitude Instrument for Mathematics and Applied Technology were analyzed to determine relationships among personal philosophy, experience, and attitudes about calculator use. Interactions between mastery orientation (calculator use before versus after conceptual mastery) and…

Uses parametric equations and a graphing calculator to investigate the connections among the algebraic, numerical, and graphical representations of functions. (MKR)