A series of experiences with patterns in number pairs, each using a physical model. (MM)

In professional training of librarians, mathematical modeling can be useful in relatively sophisticated library management games if the models simulate the provision and use of library services. (33 references) (MM)

The author describes various classroom activities for teaching basic number skills under the headings (1) Understanding facts, (2) Relating facts, and (3) Mastering facts. The activities are designed to involve children in the making of models of the operations of arithmetic and the interpretation of these models with number sentences. (MM)

Describes the development of an instrument to measure student attitudes towards a tracking system. (CK)

Similarities between regression analysis and analysis of variance are noted and it is argued that the former has advantages over the latter. It is also argued that canonical correlation analysis is more suitable than factor analysis in certain cases. The argument is illustrated with four recent pieces of educational research. (DG)

Describes a graduate or senior elective course combining fundamentals of surface phenomena with practical problem-solving structured around a series of case problems. Discusses topics covered and their development through acquiring new knowledge applied to the case problem, practical calculations of solutions, and applications to additional…

Statistical procedures for measuring heterogeneity of test item distractor distributions, or cultural variation, are presented. These procedures are based on the notion that examinees' responses to the incorrect options of a multiple-choice test provide more information concerning cultural bias than their correct responses. (Author/PN)

Presented is an approach to causal models in which some or all variables are discretely measured, showing that path analytic methods permit quantification of causal relationships among variables with the same flexibility and power of interpretation as is feasible in models including only continuous variables. Examples are provided. (Author/IS)

Uses Michigan school district data to test the assumption that public school expenditures are positively related, in a straight-line fashion, to family income. Finds that expenditures are a U-shaped function of income. (Available from Sage Publications, 275 South Beverly Drive, Beverly Hills, CA 90212.) (Author/RW)

Deciding, with outline maps, what highway exits to use to reach various towns most speedily is the problem presented. The simulation is geometric, focusing on loci. (MNS)

A statistical test is described which determines homogeneity of effect size of an experiment series. An overall fit statistic is partitioned into between-class fit statistic and within-class fit statistic. These statistics permit assessment of differences between effect sizes for different classes and homogeneity of effect size within classes.…