Productive learning of algebra is supported when students reflect on multiple strategies, compare them and discuss the rationale behind and relative merits of particular strategies. Comparison and Discussion of Multiple Strategies (CDMS) is an instructional approach designed to support these processes in math classrooms. In the current study, 16…

Background: Nanotechnology, a multidisciplinary field with increasing societal importance, demands for an increase in research abilities and capacities. Yet, nanoscience and nanotechnology (NST) are largely inaccessible to K-12 students. This situation demands efforts in research towards bringing NST learning into K-12 classrooms. Purpose: The…

Young people today are immersed in digital culture: often considered savvy navigators of online ecosystems and adept at using everyday technologies to share, create and express. These technologies are often seen as social and personal tools instead of spaces for meaningful participation. This paper shares the results of an investigation in young…

The chances of lightning striking twice are infinitesimal, at best. What are the odds, in middle age, of being struck with a jarring bolt of figurative lightning, then a few months later being an eyewitness as the same sizzle in the sky jolts a group of students--those decision-makers of tomorrow? The author describes two experiences that proved…

This article presents early evaluation data on the effectiveness of an ethics-based sex education program, the Sexual Ethics for a Caring Society Curriculum (SECS-C), which strives to develop adolescents' thinking about sex so that they might act ethically in relation to other people and reflect ethically upon sexual messages and events in the…

The racial discipline gap--the finding that Black and Latino students are more likely to be disciplined at school than White students, and often more harshly--has implications for students' academic success. This study concluded that differences in students' behavior do not fully explain the disproportionate likelihood that Black students are…

The integration of learning games into schools holds significant promise, yet faces numerous obstacles. Ubiquitous games (casual games for smart phones) attempt to motivate students to engage repeatedly with content beyond school, while enabling teachers to facilitate deeper reflection on game-related curricula during class. During a two-year…

In the United States, researchers argue that proof is largely concentrated in the domain of high school geometry, thus providing students a distorted image of what proof entails, which is at odds with the central role that proof plays in mathematics. Despite the centrality of proof, there is a lack of studies addressing how to integrate proof into…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

There is clear research-based evidence suggesting the mathematical gifts of children are not appropriately nurtured. Practices associated with the standard core curriculum renders them frustrated and bored. This paper represents an attempt to echo the voices of these children in order for their needs to be more properly met. It is based on a…

The authors evaluated emotional distress among 9th-12th grade students, and examined whether the association between being lesbian, gay, bisexual, and/or transgendered (i.e., "LGBT") and emotional distress was mediated by perceptions of having been treated badly or discriminated against because others thought they were gay or lesbian.…

This chapter discusses a three-month statewide mass media campaign to prevent teen dating violence, "See It and Stop It." The Massachusetts campaign reached out--using television, radio, and print advertising--and also encouraged anti-violence activism in select high schools. The objective was to drive thirteen- to seventeen-year-olds to…

A feasible instructional method for reducing failure in first-year algebra is the double-dose approach pioneered by Douglas MacIver. Two studies conducted in Roxbury, Massachusetts, and in Norfolk, Virginia, reveal the educational benefits of providing second math periods for ninth-grade algebra students. (MLH)

An increasing number of urban districts are scrapping traditional high school grade structures, changing their retention policies, and devising more flexible routes toward graduation to address high dropout rates. Educators in Baltimore, Boston, Houston and Rochester, New York say they are particularly focused on the 9th grade, a year when many…

Three decades of mounting academic and testing requirements are snagging growing numbers of students in the 9th grade. "The bulge" is the name education researchers give to the percentage increase in students in the 9th grade over the same period. This article reports on factors that might explain the growing 9th grade bottleneck and…