The objective of this work was to highlight the conceptions of force held by students aged 10-17 years old, in situations where animate and inanimate objects interact. In the proposed experimental situations, we varied parameters such as the motion and position of an object and the agent's effort. We asked questions about both inanimate and…

Jedediah Purdy's (2000) "For common things" laments the ironic mode of thought that characterizes our culture's mindset. He calls for a return to devotion, homage, and allegiance rather than what he sees as a jaundiced detachment that has overcome us. Purdy may be on to something, but Alexandra Day (1985) does not seem to adopt his call to a…

This study describes English language learner (ELL) student enrollment and achievement trends in Delaware public schools from 2002/03 to 2008/09. Two research questions guide this study: (1) How did the enrollment of ELL students in Delaware public schools change between 2002/03 and 2008/09?; and (2) How did performance (the percentage scoring at…

This study describes English language learner (ELL) student enrollment and achievement trends in Delaware public schools from 2002/03 to 2008/09. Two research questions guide this study: (1) How did the enrollment of ELL students in Delaware public schools change between 2002/03 and 2008/09?; and (2) How did performance (the percentage scoring at…

Stoichiometry and related concepts are an important part of student learning in chemistry. In this interpretive-based inquiry, we investigated Thai Grade 10 and 11 students' conceptual understanding and ability to solve numerical problems for stoichiometry-related concepts. Ninety-seven participants completed a purpose-designed survey instrument…

The traditional pedagogical approach for teaching chemical bonding is often overly simplistic and not aligned with the most up-to-date scientific models. As a result, high-school students around the world lack fundamental understanding of chemical bonding. In order to improve students' understanding of this concept, it was essential to propose a…

For many of the students in the author's American history class, early twentieth-century American history seems far removed from their daily lives. Being first and second-generation American citizens, many of the students do not have the luxury of hearing grandparents and great-grandparents telling stories about FDR and Henry Ford. More…

This longitudinal study examined peer contagion of depressive symptoms over an 18-month interval within a sample of 100 11th-grade adolescents. Three types of peer contagion moderators were examined, including characteristics of adolescents (social anxiety, global self-worth), friends (level of friends' peer-perceived popularity), and the…

In grade 8 (the only grade in which subgroup trends were analyzed by achievement level), New Mexico showed across-the-board gains--improvements in reading and math at the basic-and-above, proficient-and-above, and advanced levels for all major racial/ethnic subgroups and low-income students. Progress in narrowing achievement gaps at grades 4, 8,…

This report summarizes AISD 2008-2009 program evaluation results for a state grant to improve students' grades in science courses, to increase students' chances of graduating, and to increase 10th and 11th-grade students' scores on the state science test.

This report presents the number of high school graduates, the Averaged Freshman Graduation Rate (AFGR), and dropout data for grades 9 through 12 for public schools in school year 2006-07. The counts of graduates, dropouts, and enrollments by grade (which serve as the denominators for the graduation and dropout rates) are from the National Center…

As technology advances continue to impact K-12 schools, online education options offer alternative choices for both teaching and learning. Library media specialists, long committed to providing physical and intellectual access to instructional materials, have responded to changing needs in this online world. They had previously created a virtual…

In this article I explore how teachers and learners position themselves in relation to use of language(s) in multilingual mathematics classrooms. I draw from two studies in multilingual mathematics classrooms in South Africa. The analysis presented shows that teachers and learners who position themselves in relation to English are concerned with…

In this paper we studied the effectiveness of the writing criteria that are proposed to be applied during the construction of physics texts so that students with dyslexia do not confront reading difficulties with them. The effectiveness of the criteria has been assessed by the accomplishment of an investigation among students with and without…

Our main goal in this study was to explore whether the use of models in high school molecular genetics instruction can contribute to students' understanding of concepts and processes in genetics. Three hundred and nineteen students from four comparable groups of 11th- and 12th-grade students participated. The control group (116 students) was…