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)

In this article, the author shows some simple examples of ways in which "Autograph" can enhance learning in the KS3 curriculum. He began using version 2 with A-level students to help them visualise concepts in pure mathematics. He has "Autograph" projected to the front board to keep learners focused on mathematical activity…

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…

"Measuring College and Career Readiness" represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, it is not intended to be comprehensive but instead is designed to help…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…

The "Measuring College and Career Readiness" report for each state represents a snapshot of the ACT-tested graduates in the class of 2009 and focuses on their readiness for college and careers. Designed to inform policymakers and practitioners about selected indicators of effectiveness, the report is not intended to be comprehensive but…