Maximizing the Impact of Professional Development for Earth Science Teachers

This study examines the extent to which follow-up sessions can provide support for earth science teachers as they apply what they learn from professional development coursework during the academic year with their own students. Data include direct observation of follow-up sessions of courses for teachers; interviews with course co-instructors and teacher participants; and, document analysis of teacher products with a focus on the lesson plans, laboratory/activity sheets for students, and virtual field trips that teacher participants submitted and shared during follow-up sessions. Strategies are recommended to assist earth science content faculty in increasing the impact of their work with teachers and hence, student instruction

A New Technique for System-to-system Transfer of Surface Data

The purpose is to describe a recently developed technique aimed at providing a universal interface between surface types. In brief, a software package was developed which functions a common denominator of CAD/CAM surface types. This software enable one to convert from any given surface representation to any other target representation. The tiles maintain the same slope continuity as the target surface gram, bicubic patches are used since they allow one to match point, slope, and twist vectors to the target surface. Thus, slopes can be continuous or discontinuous as they are on the target surface. The patches can be of lower order if desired. For example, if only point information is available, the patches produced will be bilinear; however, the number of patches required is likely to increase correspondingly. The patches can be of higher order although many systems will not accept patches of more than order four. The final result of the program is a rectangular grid of bicubic patches. The patches fit the target surface exactly at their corners. Also, the patch corners have the same tangent and twist vectors. Adjacent patches will have slope continuity, unless a discontinuity was indicated by the target surface

Science Leadership: Impact of the New Science Coordinators Academy

This article discusses the impact of the New Science Coordinators Academy (NSCA) on two cohorts of participants. The NSCA is one of four components of the Virginia Initiative for Science Teaching and Achievement (VISTA), a United States Department of Education (USED) science education reform grant. The NSCA is designed to support new school district science coordinators (with less than five years of experience) and to continue building the state science education infrastructure. Research in education leadership traditionally focuses on teacher leaders, principals, and district office personnel. Interestingly, research on district office personnel rarely distinguishes between the different roles of district personnel. This article seeks to inform the field by sharing the impact of an academy designed for new science coordinators on their learning, and to begin to understand their role and impact in their district. The five-day Academy engaged participants in a variety of experiences designed to facilitate the following: 1) build leadership skills; 2) build a common understanding and vision for hands-on science, inquiry, problem-based learning, and nature of science in the science classroom; 3) investigate data to improve student learning goals; 4) and, develop a science strategic plan. The data indicate that the NSCA was successful at meeting its goals to support the participants and to build a common language among these new coordinators. Initial data also support the variety of responsibilities of these participants and the positive impact of the Academy on their district work

From No Hope to Fertile Dreams: Procreative Technologies, Popular Media, and the Culture of Infertility

Throughout history, both popular and scholarly literature depicted infertility as a devastating experience in a woman’s life. Infertility was unbearable, filled with stigma, and a perpetual state of conflict between those who cannot have children and the rest of the world who can. Until recently as treatments for infertility developed, families assumed childlessness as hopeless. While the process of overcoming infertility is still arduous, unpleasant and unpredictable, many options are available today to overcome infertility and have children. As a result, the portrayal of involuntary childlessness and infertility especially by popular media, changed significantly over the years. Current procreative technologies encouraged families to believe that the dream of having a baby was achievable for all. Using social constructionist and feminist theories, I analyzed the culture of infertility between 1960 and 2010. I used a mixed-method approach to the historical study of the infertility culture tracing the way the public became aware of the various medical treatments for infertility. First, I utilized a modified grounded theory approach to analyze the norms, values, beliefs, attitudes, and goals pertaining to infertility and the treatment of infertility as reflected in popular magazines. Next, I interviewed six fertility specialists who practiced reproductive medicine and the treatment of infertility between 1960 and 2010 to gain their perspectives regarding how the expectations about infertility and treatments changed over time from the medical point-of-view. Finally, I analyzed data available from the Center for Disease Control and Prevention’s population-based National Survey of Family Growth describing public attitudes and behaviors with regard to infertility, infertility diagnoses, and the utilization of infertility treatments over all the years that the survey was conducted. Shaped heavily by issues related to power, patriarchy, gendered expectations, social stratification, and heteronormativity, the cultural story of infertility between 1960 and 2010 was much more complex and diverse than typically told by social science researchers. Overall, I found that although the increased media attention and the availability of procreative technologies changed the landscape of family building, the underlying social forces influencing decisions about procreation did not