Annual records of the one-mile sun can be used to introduce a variety of statistical ideas including the scatter diagram, theoretical vs. observed values, and normal equations. (SD)

A geometric approach to the solution of quadratic equations and more general polynomials is based on finding points with minimum distance from the x-axis. The approach is useful in motivating the definition of complex numbers. (SD)

Worksheets contain instructions and patterns for use in constructing models of the platonic solids from cardboard and rubber bands. (SD)

The author argues that students do poorly with problems involving percent because they do not adequately understand ratio and proportion. Described is an instructional sequence designed to build these concepts. (SD)

Discussed is the distinction between weight and mass, and the need to distinguish these concepts in a successful metrication program. (SD)

The famous birthday problem is discussed and activities which can be used with it as an introduction to probability are examined. (SD)

A journal called the Ladies' Diary published from 1704 to 1841, presented mathematical problems, and solutions to the problems. The purposes of the journal are compared to those of Scientific American today. (SD)

Mathematics Level I and Level II Achievement Tests offered by the CEEB Admissions Testing Program are discussed. Administration and purpose of the tests, test development procedures, test content, advising students, and interpreting test scores are covered. Sample examination questions are included. (DT)

The philosophy and methodology of mathematics testing in the USSR are considered. (DT)

The five mathematics problems to be solved by high school students participating in the Fifth U.S.A. Mathematical Olympiad are given. (DT)

Definitions of giftedness, the identification of gifted students, appropriate learning materials, research, teacher education, public relations, and the role of state and local groups in the education of the gifted are discussed. (DT)

The organization and evaluation of a self-paced audio-tutorial precalculus course are described. (DT)

Activities are described in which number patterns in two-digit multiplication exercises are investigated. (DT)

These worksheets involve the use of tangram pieces in creating geometric shapes and in analyzing properties of convex quadrilaterals. (DT)

Cellular partitioning of space is discussed. Directions are given for making geometric models of cells. (DT)