Presents a mathematics activity to model the exponential growth of the common cold, AIDS, or any other communicable disease. Underscores the effect that a friend's or partner's previous behavior may have on a current relationship and on society at large. (ASK)

This article discusses the importance of measurement in providing a foundation for mathematical study and how measurement can be integrated with other mathematical strands. (Contains 1 table.)

This article showcases four Shel Silverstein works and how they can be used to launch mathematics investigations across the curriculum. Each selection focused on a different mathematical strand; for example, a poem titled "Where the Sidewalk Ends" demonstrates measurement and proportional reasoning, and another poem, "Falling Up," demonstrates…

Investigations with the computer can have different functions in the mathematical learning process, such as to let students explore a subject domain, to guide the process of reinvention, or to give them the opportunity to apply what they have learned. Which function has most effect on mathematical level raising? We investigated that question in…

This article advances a view of Computer Algebra Systems (CAS) as powerful inquiry-based learning tools. Through an in-depth exploration of the "Emptying the Bowl" activity, upper level mathematics students test their own mathematical hypotheses, thoughtfully analyse and manipulate computer-generated output, and answer questions…

Objective: The purpose of this article is to: (1) illustrate the application of life table methodology to child abuse and neglect report data and (2) demonstrate the use of indicators derived from the life tables for monitoring the risk of child maltreatment within a community. Method: Computerized records of child maltreatment reports from a…

Cox (1972) proposed a discrete-time survival model that is somewhat analogous to the proportional hazards model for continuous time. Efron (1988) showed that this model can be estimated using ordinary logistic regression software, and Singer and Willett (1993) provided a detailed illustration of a particularly flexible form of the model that…

A modified multiple baseline across behaviors design was used to evaluate the effects of an interdependent group contingency program with randomly selected contingency components on the academic performance of an intact middle-school class serving five male students with serious emotional disturbance (SED). During the initial intervention phase,…

Statistics education is under review at all educational levels. Statistical concepts, as well as the use of statistical methods and techniques, can be taught in at least two contrasting ways. Specifically, (1) teaching can be theoretically and mathematically oriented, or (2) it can be less mathematically oriented being focused, instead, on…

In a pair of recent studies, Fryer and Levitt (2004a, 2004b) analyzed the Early Childhood Longitudinal Study--Kindergarten Cohort (ECLS-K) to explore the characteristics of the Black-White test score gap in young children. They found that the gap grew markedly between kindergarten and the third grade and that they could predict the gap from…

Evidence that childhood maltreatment is associated with emotional and behavioral problems throughout childhood suggests that maltreatment could lead to impaired academic performance in middle and high school. This article explores these effects using data on siblings. An index measure of the intensity of childhood maltreatment was included as a…

This Brief reports on a new study that begins to fill this research gap. Using longitudinal unit record transcript data on a cohort of first-time community college students in Florida, the study sought to determine whether remedial pathways, such as enrolling in a developmental math course, and enrollment milestones, such as completing a certain…

Introduction: A recent review of the physician performance literature concluded that the risk of prematurely closing one's diagnostic search increases with years of experience. To minimize confounding variables and gain insight into cognitive issues relevant to continuing education, the current study was performed to test this conclusion. Methods:…

Social movement research suggests that protest is effective because it de-legitimizes existing policies and imposes costs on power holders. The author tests this hypothesis with data on African-American student protest and the creation of departments of African-American Studies. The author finds that nondisruptive protest, such as rallies and…

National Longitudinal Survey of Youth and census data are used to examine the effect of both individual- and contextual-level determinants on Latinas' transition to first marriage (n = 745). Hypotheses derived from 4 leading theories of marriage timing are evaluated. Discrete-time event-history models that control for clustering within Labor…