In this study with 132 secondary school geometry students, three significant aptitude by treatment interactions were found. Students with high reasoning scores and those with high processing scores profited more from the transformational treatment on point and line symmetry. (MP)

The NCTM delegation's visit to the People's Republic of China in the fall of 1977 is described. Mathematics education in China is presented in terms of mathematical content taught. (MK)

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

Shows, by a judicious exploitation of the Runge-Lenz vector, that the Kepler initial value problem is endowed with a nice geometric structure which enables one to determine, after a single trivial arithmetic calculation, the orbit associated with any given set of initial data. (Author/GA)

A discussion is given of the techniques for and advantages of using teaching aids based on the "rotogram." (MK)

Some classroom discoveries are reported concerning artistic patterns related to Pascal's triangle that can be generated by the computer. (MP)

Classroom related topics discussed are: cryptics and statistics; understanding absolute value; recognizing quadratic equations with no real roots; and two derivations of a formula for finding the distance from a point to a line. (MP)

Directions are given for making a model of a three-dimensional coordinate graph. (DT)

Highlights a mathematics program for gifted students (ages 6-8) in Beijing. Different components of the program are described, including using audiovisual geometry, emphasizing the combination of shape and number, stimulating imagination, applying the discovery method, and using the search-out model. Provides sample math problems. (CR)

Presents a plan involving routine classroom tasks to integrate mathematics with cooperative learning teams in a second-grade class. Explains the process and describes some of the ways in which the activities are used to provide an opportunity for the team and the student to apply mathematics. Concludes that cooperative learning has many merits.…

Describes an episode involving conditional statements and the notion of logical equivalence that occurred in a 10th-grade college-preparatory geometry class. Illustrates some of the confusion that can arise in connection with this topic, for both students and teachers. (ASK)

Describes a study in which Australian children aged 5-8 years old (N=70) were presented with a range of measurement tasks to determine the strategies and devices that they would choose to use to measure length. Results are in conflict with the normal curriculum sequence. Contains 30 references. (DDR)

Comments on Gregory Trandel's article that explores two teaching strategies using geometry and algebra to demonstrate the equivalence between two methods of measuring excess burden. States that for students with limited mathematics skills, measuring excess burden can be expressed algebraically using a simple formula (excess burden…

Examines values that seven secondary geometry teachers placed on their participation in a school-based study group and the organizational structure and the impact of that structure on teachers' continued participation in the study group. Shows that the teachers were supported in building community and relationships, making connections across…

Presents a project that addresses several components of the Algebra and Communication Standards for Grades 9-12 presented in Principles and Standards for School Mathematics (NCTM, 2000). Describes doing mathematical modeling and using the language of mathematics to express a recursive relationship in the perimeter and area of the Koch snowflake.…