Within the discussion of the development of commonsense theories of motion, recent research has established that throughout middle childhood, reasoning about motion down inclines changes with increasing age. To investigate this shift in more detail, this study investigated 5- to 11-year-old children's understanding of motion down curved slopes,…

This chapter defines leader developmental readiness, presents a conceptual model, and discusses implications for practitioners supporting leaders before college, during college, and in early career stages.

Although students' personal passions typically determine the issue addressed by service-learning leadership initiatives, this chapter advocates for a community-centered alternative. This in-depth exploration of a leadership development course series models a community-need driven project and explores the benefits for both community and student…

In 2017, almost everywhere in the world, there was a boom in sales of fidget spinners. A toy that has 'multi-lobes' that can rotate freely from a thrust performed with the fingers. Thereby, we analysed the physics concepts that involved in this toy, such as angular and linear velocity. We did the analysis using the software Tracker, a laboratory…

The purpose of this study is to investigate the impact of context-based chemistry education on the metacognition and multiple-intelligences of preservice chemistry teachers, and their achievement in chemistry lessons in the laboratory environment that includes the 4Ex2 model. Within the framework of the general chemistry laboratory lesson, the…

The autobiographical memory model of posttraumatic stress disorder (PTSD) argues that centralizing a traumatic event into one's life story is a maladaptive process associated with increased PTSD symptoms. Current measures of event centralization make no reference to whether individuals centralize the event in a positive or negative way. This study…

In this paper, we present and discuss a framework for considering the quality of primary teachers' mediating of primary mathematics within instruction. The "mediating primary mathematics" framework is located in a sociocultural view of instruction as mediational, with mathematical goals focused on structure and generality. It focuses on…

Psychometric measurement models are only valid if measurement invariance holds between test takers of different groups. Global model tests, such as the well-established likelihood ratio (LR) test, are sensitive to violations of measurement invariance, such as differential item functioning and differential step functioning. However, these…

This article describes a grantmanship framework for high school science educators. The scenario described illustrates the importance of grant writing in an era of increased school accountability and tightened purse strings. The framework presented can be used for most STEM-related projects and can guide educators toward high-quality instruction…

In causal matching designs, some control subjects are often left unmatched, and some covariates are often left unmodeled. This article introduces "rebar," a method using high-dimensional modeling to incorporate these commonly discarded data without sacrificing the integrity of the matching design. After constructing a match, a researcher…

Today people learn in many diverse locations and contexts, beyond the confines of classical brick and mortar classrooms. This trend is ever increasing, progressing hand-in-hand with the progress of technology. Context-aware learning systems are systems which adapt to the learner's context, providing tailored learning for a particular learning…

While personality is relatively stable over time, it is also subject to change across the entire lifespan. On a macro-analytical level, empirical research has identified patterns of normative and differential development that are affected by biological and environmental factors, specific life events, and social role investments. On a…

We commonly ask students to compare the results of their experimental measurements with the predictions of a simple physical model that is well understood. However, in practice, physicists must compare their experimental measurements with the predictions of several models, none of which may work well over the entire range of measurements. The…

Teaching simple circuits and Ohm's law to students in the introductory classroom has been extensively investigated through the common practice of using incandescent light bulbs to help students develop a conceptual foundation before moving on to quantitative analysis. However, the bulb filaments' resistance has a large temperature dependence,…

Despite the widespread promotion of the global school, it remains unclear as to how citizenship education (global citizenship education, GCE) is developed. Educational bodies such as UNESCO, Oxfam, and the International Baccalaureate are in the full throws of developing models for GCE yet questions remain as to how such a sweeping notion might…