Data analysis problems, particularly involving the likelihood of obtaining visually ambiguous graphs, pose a barrier to efforts to promote increased use of single-case evaluation by practitioners. Uses findings from an evaluation of a cognitive-behavioral intervention with adolescent sex offenders to illustrate data analysis problems. (JPS)

Investigates the practices required for reading graphs in high school textbooks and scientific journals. Discusses the role of high school textbooks in the appropriation of authentic scientific graph-related practices. Finds that scientific journals provide more resources to facilitate graph reading and feature more elaborate descriptions and…

Describes how multicultural children's literature was used to launch a series of lessons to help children gain insights into a wide range of mathematics concepts and cultures. (ASK)

A deliberate attempt is made in Business Mathematics oriented text books as well as in some reform calculus oriented text books to interpret the derivative f[prime](a) of a function y = f(x) at the value x = a as the change in the y-value of the function per "unit" of change in the x-value. This note questions the above interpretation and suggests…

Given a conic section, the locus of a moving point in the plane of the conic section such that the two tangent lines drawn to the conic section from the moving point are all mutually perpendicular is a curve. In the case of an ellipse and hyperbola this curve is a circle referred to as the director circle. In the case of the parabola this curve…

There is much research that documents what many teachers know, that students struggle with many concepts in probability and statistics. This article presents two sample activities the authors use to help preservice teachers develop ideas about how they can use technology to promote their students' ability to understand mathematics and connect…

This article examines levels of involvement of weekly church attenders in Catholic parishes in Australia, New Zealand and the United States through an analysis of data from the International Congregational Life Survey. Factor analysis was used to identify four questionnaire items related to parish involvement which were then combined to produce a…

This year, Congress is scheduled to review the No Child Left Behind Act (NCLB). In 2002, this law signaled an important change in federal education policy by focusing on accountability for results rather than simple compliance and by seeking to set the performance bar high for all children, regardless of where they live. The time is now to learn…

Science and mathematics educators are expected to use existing educational technologies effectively and to keep informed about emerging technologies that might become important educational tools in the not-so-distant future. This monograph offers some help in that regard by highlighting a number of existing and emerging educational technologies.…

This paper has two goals. The first is to present a model of the acquisition of a concept image of function. Theories describing the objectification of function are outlined through two different but related paths, and both stem from the conception of function as a process. The first path to objectification involves the generalization of the…

The goal of the DataSpace project is to develop a computer learning environment for data analysis and statistics and associated materials for high school mathematics. DataSpace software will provide a concrete metaphor for data, along with interactive visual explanations of statistical concepts. Users will be able to change data smoothly and…

This report presents statistical data on the dropout rates in Massachusetts public schools for 1990. The data were gathered through a state mandated annual survey of the state's public schools. Dropouts are defined as students aged 16 years or older who leave school prior to graduation for reasons other than transfer to another school. The report…

Information coordination tasks are tasks that require concurrent performance of two or more component tasks and the subsequent coordination of component information. In this experiment, different procedures, componential and contextual, were used to train separate groups of college campus community members (n=35 and n=33) in a coordination task…

To study how the organization of information affects the way that information is interpreted, a total of 404 undergraduates in two studies (151 and 253 students, respectively) solved statistical reasoning problems based on data presented in a variety of types of graphs and tables. When assessing relative probabilities, students were equally…

This publication presents the results of the Iowa State Adult Literacy Survey as referenced in the publication "Adult Literacy in Iowa: Results of the State Adult Literacy Survey" in graphic form. The State Adult Literacy Survey was a research project in which 12 states assessed the literacy skills of their adult populations. As a…