Suggests important roles for the mathematics test: certifying procedural skills, informing instruction, and preparation for sense-making. Offers cautions about the limitations of the teacher-produced test. (MKR)

Discusses various ways to explore graphs on the TI-82 graphing calculator by using the three different cursors: the free-moving, trace, and result cursors. (MKR)

Adopted from the Presidential Address at the 1995 NCTM Annual Meeting in Boston. Discusses reforms of the past; answering critics; and reaching out to parents, university colleagues, and policymakers. (MKR)

Presents results from research aimed to design and experiment with a set of units for teaching plane isometries in grades 3 through 12 and applies the van Hiele model of geometric reasoning to isometries. Includes a table of characteristics of teaching objectives for the van Hiele Levels in Isometries. (MKR)

Offers suggestions for a unit on word study in geometry, including defining, recognizing, producing, and appreciating the concepts of geometry. Includes lists of terms and Greek and Latin word roots. (MKR)

Contains tips from readers about using technology in the classroom, including notebook computers, classroom sets of calculators, geometry software, LOGO software, publisher discounts, curriculum materials in CD-ROM, and volunteer help in computers and computer networking for schools. (MKR)

Presents Cevian geometry problems (involving a segment that joins a triangle's vertex to a non-vertex point on opposite side) that illustrate how to implement methods for developing flexible strategies of problem solving, finding multiple representations, and making connections to other areas of mathematics and the real world. (ASK)

Provides a brief historical explanation of the multiplication sign in mathematics. (ASK)

Presents activities to demonstrate some of the properties and relationships among the Platonic polyhedra. (ASK)

Explains that the way in which teachers view algebra has important implications for their instructional goals such as algebra as symbol manipulation versus algebra as a language for generalizing arithmetic. Contains 14 references. (ASK)

Students have difficulty associating equations of vertical and horizontal lines with their respective graphs. Presents an activity using a TI-82 graphing calculator to eliminate this confusion and to strengthen students' understanding. (ASK)

Provides a cooperative-learning activity in which students calculate the horsepower of an individual by collecting and analyzing data. (ASK)

Presents an activity that uses an inexpensive paper plate and a short length of adding machine tape to help students experience the concept of radian measure. Focuses on radian measurement and connects many geometric concepts regarding the circle. (ASK)

Describes preparation for instruction using a problem-based approach as part of a teaching-strategy repertoire. Describes classes that use the approach successfully, and identifies pitfalls. Suggests ways that mathematics teachers can get assistance in successfully implementing a problem-based teaching approach. Presents research results that…

Presents an activity to introduce the concepts of average rate change and instantaneous rate of change of a function and to explore the relationship between the value of the exponential function and its instantaneous rate of change. (ASK)