Since 1933, elementary and secondary student-teacher ratios have decreased, while ratios in college have increased. Until the late 1960s, the high birth rate and increasing proportion of college students demanded more teachers. Current enrollments in bachelor of education programs are three to four times too high for teacher demand. (CP)

Described is a learning activity that requires students to observe, read, and interpret graphs and organize and describe data. Included are the grade level, materials, objectives, prerequisites, directions, answers to questions, and copies of handouts. (KR)

Presents an activity in which students collect and organize data from a real-world simulation of the scientific concept of half life. Students collect data using a marble sifter, analyze the data using a graphing calculator, and determine an appropriate mathematical model. Includes reproducible worksheets. (MDH)

Solves the problem of the reproduction of rabbit pairs utilizing the Fibonacci sequence. Examines modified versions of the problem, and presents a vignette of one modification based on the author's experience in using the approach with preservice middle school teachers. Extends the approach to other related problems. (MDH)

After a year of instruction, 70 kindergarten children were individually interviewed as they solved basic, multistep, and nonroutine word problems. Thirty-two used a valid strategy for all 9 problems, and 44 correctly answered 7 or more problems. Modeling provided a unifying framework for thinking about problem solving. (Author/MDH)

Discusses the use of computer visualization to motivate and support mathematical dialogues. Describes the "Scientific Visualization Software Suite," a set of public domain visualization tools from the National Center for Supercomputing Applications. (Author/MDH)

Examines effects of tracking in high schools under different structural settings (selectivity, electivity, inclusiveness, and scope), using data for 20,762 students in 805 public and 78 Catholic high schools. Schools vary significantly in the magnitude of track effects on mathematics and verbal achievement. Catholic schools' tracking structures…

Effects of Ohio's mandatory seat belt law on seat belt use, number of car accidents, and number of fatal and severe injuries were evaluated for January 1982 through March 1988. The monthly average number of accident victims was 2,002. Implications for public policy formulation and implementation are discussed. (SLD)

Six existing statistical procedures (models) for indirectly assessing the prevalence of need for alcohol, drug abuse, and mental health services across subareas of a state are described and critiqued in terms of epidemiological and statistical characteristics. Specific advantages and disadvantages are listed for each model. (SLD)

This article discusses the analysis of a decision-making process faced by contestants on the television game show "The Price is Right". The included analyses of the original and related problems concern pattern searching, inductive reasoning, quadratic functions, and graphing. Computer simulation programs in BASIC and tables of…

Described is the use of story telling as a context to introduce mathematical concepts by providing a model, offering problem-posing situations, stimulating investigation, and illustrating concepts. Examples of appropriate stories are given for the primary and low secondary levels. (MDH)

A method was developed using a deck of cards to teach Japanese fifth graders to calculate the area of a parallelogram. Investigations with 59 male and 45 female students demonstrate the superiority of the method to that previously used in terms of recall at one week. (SLD)

A Many-Faceted Rasch Model (FACETS) for measurement of writing ability is described, and its use in solving measurement problems in large-scale assessment is illustrated with a random sample of 1,000 students from Georgia's Eighth Grade Writing Test. It is a promising approach to assessment through written compositions. (SLD)

In this study, 590 third graders from 12 Dutch schools took 32 tests indicating 16 semantic Structure-of-Intellect (SI) abilities and 1 of 4 reading comprehension tests, involving either multiple-choice or open-ended items. Results indicate that item type for reading comprehension is congeneric with respect to SI abilities measured. (TJH)

Use of the bootstrap resampling technique (BRT) is assessed in its application to resampling analysis associated with measurement of payment allocation errors by federally funded Family Assistance Programs. The BRT is applied to a food stamp quality control database in Oregon. This analysis highlights the outlier-sensitivity of the…