For this experiment, students are divided into 2 groups and presented with a static equilibrium force-balance problem to solve. One group works entirely experimentally and the other group theoretically, using Newton's laws. The groups present their seemingly dissimilar results and must reconcile them through discussion. (Contains 3 figures.)

In the present study, we present analyzed profiles of observed classroom experiences in terms of emotional and instructional dimensions of quality. Over 800 first-grade classrooms across the United States were included, selected by virtue of having a student participating in the National Institute of Child Health and Human Development's Study of…

The author and his first-year algebra students explored the quadratic behavior behind the parabolic shape of fountains at the local family splash park. This hands-on discovery project has three main parts: (1) gathering data by experimenting with and photographing the fountains; (2) analyzing the photographs to obtain numerical data; and (3)…

This article examines whether correlates of cross-national homicide variation tested with data from highly developed, predominantly Western nations could also explain homicide rates in East-Central Europe. Using pooled time-series analyses of data from nine countries from 1990 through 2003, this study found that homicide rates were negatively…

Few laboratory procedures describe the use of circular dichroism (CD) at the undergraduate level. To increase the number of laboratory exercises using CD, a thermal denaturation study of myoglobin using CD is described to assess protein stability. Values obtained from a more classic linear data analysis approach are consistent with data analyzed…

The article explores the author's learning as she interviewed students who participated in a data analysis unit. The article features students' comments and raises issues that are pertinent to supporting students' understandings of data analysis and their views of their own mathematical capabilities. (Contains 1 figure.)

This paper discusses the advantages and challenges of using qualitative methods to elicit poor children's perspectives about threats and positive influences on their wellbeing. It draws on research carried out by the author on the subjective experiences of poor children in Addis Ababa, the capital of Ethiopia in terms of their understandings of…

Tables and charts are efficient tools for organizing numbers, but many people give little consideration to the order in which they present the data. This article illustrates the strengths and weaknesses of four criteria for organizing data--empirical, theoretical, alphabetical and a standardized reporting scheme.

Hypotheses about aberrant test-response behavior and hence invalid person-measurement have hitherto included factors like ability, gender, language, test-anxiety, and motivation, but these have not previously been collectively investigated with real data, or with multilevel models. This study analyzes the effect of these factors on person…

We discuss the results of a study aimed at shedding light on the influence that the sharing of professional teaching experiences may have on teachers' professional learning. The focus is on the uses that participants make of their notes about their lesson planning experience in an in-service blended learning course, and the mediation strategies…

This article begins to unpack the complex effects of the policies of both the small schools and choice on students with special needs. Drawing on qualitative data collected throughout the 2008-2009 academic year and a range of quantitative data from New York City's public high schools, the author shows that while small schools and choice are…

The purpose of the International Computer and Information Literacy Study 2013 (ICILS 2013) is to investigate, in a range of countries, the ways in which young people are developing "computer and information literacy" (CIL) to support their capacity to participate in the digital age. To achieve this aim, the study will assess student…

The shift in education reform to a goal of college and career readiness for all students is a change that has been embraced widely across the country. The challenge of designing new policies and programs that could accomplish the goal that all students should graduate from high school with the skills and knowledge necessary to succeed in college…

This paper attempts to reveal some strategies performed by a teacher which indicate that s/he is exercising power in managing and conducting language teaching and learning process. Such power may be manifested in terms of the frequency of directives or of the holding of control over the interaction process. Despite the fact that exercising power…

It is acknowledged that teacher training programmes around HIV in most of sub-Saharan Africa appear not to have been very effective in assisting teachers to respond to the demands placed on them by the pandemic. In response to the need identified by international development agencies, for research into teacher education and HIV in sub-Saharan…