This study investigated the effect of well- vs. ill-structured problem types on: (a) group interactional activity, (b) evolution of group participation inequities, (c) group discussion quality, and (d) group performance in a synchronous, computer-supported collaborative learning (CSCL) environment. Participants were 60 11th-grade science students…

Children with only months of life experience and brain development are just beginning to learn social problem solving. No wonder young children frequently make mistakes! Teachers tend to complain about tattling more than any other behavior. To many teachers, tattling is irksome, but there is more to this behavior than meets the eye. In this…

This study examined the efficacy of an after-school program, the Challenging Horizons Program (CHP), that met four days a week and focused on improving organization, academic skills, and classroom behavior. The CHP was compared with a community control that included involvement in a district-run after-school program that met one to three days a…

An estimation tool for symmetric univariate nonlinear regression is presented. The method is based on introducing a nontrivial set of affine coordinates for diffeomorphisms of the real line. The main ingredient making the computations possible is the Connes-Moscovici Hopf algebra of these affine coordinates.

When you're a school principal dealing with multiple tasks at every moment, you're continuously at risk of getting blindsided by unspoken grievances and hidden agendas. But you can identify and reduce these risks by applying the ideas and strategies from this book. Two experienced principals describe how to keep on top of the human relationships…

This article, which describes integrating virtual manipulatives with the teaching of probability at the elementary level, puts a "virtual spin" on the teaching of probability to provide more opportunities for students to experience successful learning. The traditional use of concrete manipulatives is enhanced with virtual coins and spinners from…

Stereotype threat (ST) occurs when the awareness of a negative stereotype about a social group in a particular domain produces suboptimal performance by members of that group. Although ST has been repeatedly demonstrated, far less is known about how its effects are realized. Using mathematical problem solving as a test bed, the authors demonstrate…

In response to ongoing concerns with student academic and behavior problems, antecedent strategies have garnered increasing attention. Antecedent intervention approaches focus on structuring the environment to prevent problems and enhance motivation. At the class-wide level, implementation of these strategies can create a structured and orderly…

Charles Dodgson (Lewis Carroll) discovered a "curious" method for computing determinants. It is an iterative process that uses determinants of 2 x 2 submatrices of a matrix to obtain a smaller matrix. When the process ends, the result is the determinant of the original matrix. This article discusses both the algorithm and what may have led Dodgson…

The geometric problem of finding the number of normals to the parabola y = x[squared] through a given point is equivalent to the algebraic problem of finding the number of distinct real roots of a cubic equation. Apollonius solved the former problem, and Cardano gave a solution to the latter. The two problems are bridged by Neil's (semi-cubical)…

Michel Foucault (1926-84) is a primary thinker informing the construction of a critical theory of library and information science (LIS), or librarianship. He is widely cited and is adapted in various ways that focus on LIS forms of power, discourse, and so on. Others have addressed Foucault's topics, but he remains central. Librarianship has taken…

Reality--real life--is complex, more complex than can be imagined. The majority of our most pressing issues confronted in the management of organizations are overwhelmingly complex. I make the case for a systems design approach as a remedy. Examples introduced in this paper illuminate conceptual tools that advance how people transform their…

Gay and lesbian faculty members may no longer be desperate to hide their true identities in academe, but many are desperately seeking health insurance for their partners. With anti-gay discrimination fading, obtaining health and other benefits for partners is still a major concern for many gay and lesbian academics. A growing number of colleges…

In this article, the authors consider the exponential curves y = ba[superscript x] where a, b [is a member of] R, a [greater than] 0, a [not equal to] 1, and b [not equal to] 1. The authors show that by fixing one of a or b the points (x[subscript 0],y[subscript 0) of tangency of y = ba[superscript x] and the line passing through the origin lie on…

In this article, the author presents a six by six array in which individuals can obtain 182 in total even if they use a different set of numbers. The author then explain why this is possible. The author uses the k-translation of a sequence for this equation. (Contains 8 figures, 2 tables and 6 footnotes.)