The nature of instruction in a computer club that is open only to seventh to ninth graders is detailed. The club has access to five TRS-80 Model II computers, and membership is limited. Students are instructed from the beginning in graphics. Examples of program assignments are listed. (MP)

The material is designed for student estimation of factors and divisors, with calculator use for checking estimations. Four worksheet masters are designed for classroom use. It is believed that problem-solving skills can be encouraged as students look for ways to improve on estimations. (MP)

Compares student performance on fraction/number line tasks which varied length and equivalence. Associating proper fractions was easier on number lines of length one rather than length two; and where number of equivalent line segments in each unit segment was the same as the denominator, rather than twice that number. (CS)

Five problems on the generation and study of prime and related numbers are discussed. Solutions to the problems posed will be in next month's presentation. (MP)

This study gathered information concerning the status of mathematical preparation of high school seniors in Wyoming, and determined the mathematics necessary for entrance into University of Wyoming programs. The results are viewed to raise serious concerns regarding the planning and preparation of college-bound students. (MP)

This study took place among undergraduates enrolled in first-year university courses and graduates enrolled in teacher-training courses. The test used is presented in full. Results indicated that misconceptions received in secondary-level courses tend to remain and factors relating to presenting and learning mathematics dominate all other…

Activities that can be used for maintenance of computational skills and can lead to the discovery of a pattern verifiable by an algebraic procedure are noted. The language of algebra is used in nonroutine settings, with several challenges for further exploration. (MP)

Activities designed for pupils to read and draw distance-time graphs and use the slopes to draw conclusions about car speeds are presented. Worksheets designed for duplication for classroom use are included, and suggestions for supplementary activities involving speed-time graphs are provided. (MP)

A method of organizing data known as a stem-leaf plot is presented in detail. This method is viewed to overcome many of the disadvantages associated with the traditional methods of grouping in the frequency distribution table and provides a convenient introduction to data organization. (MP)

Reasons why fewer females than males continue studying mathematics beyond those courses required for high school graduation or college entrance are examined. Data suggest intervention programs aimed at increasing female participation will be most successful by increasing perceptions of usefulness and generating interest in male-stereotyped…

Presents the game of Keno as an interesting, realistic model for applying mathematics that can be an excellent aid in teaching some basic probability concepts. It is felt that having students examine the probabilities may convince them that winning at Keno is unlikely, and it is an unfair game. (MP)

A program designed to plot three-dimensional graphs is described and presented. The program allows the user to select maximum and minimum ranges for X, Y, and Z, and can enlarge a graph on the screen or look at a portion away from the origin. It is in Applesoft BASIC. (MP)

A complete characterization of minimum conditions for congruence of quadrilaterals is presented. Convex quadrilaterals are treated first, then concave quadrilaterals are considered. A study of such minimum conditions is seen to provide some interesting and important activities for students. Only background in triangle congruence is necessary. (MP)

Materials designed to promote student investigation of factoring quadratic polynomials over the integers through using a physical model are presented. Pupils are expected to discover regularities that will permit them to factor such polynomials at the symbolic level. Worksheet masters designed for classroom use are provided. (MP)

The use of a computer to help honors second-year algebra students graph quadratic and higher-order polynomials is discussed. Sample computer programs are included. (MP)