Making assumptions is an important step in solving many real-world problems. This study investigated whether participants who could solve well-defined physics problems could also solve a real-world physics problem that involved the need to make assumptions. The participants, who all had at least a BA in physics, were videotaped "thinking aloud"…

This paper explores the role of diagrams and text in middle school students' understanding and visualisation of human body systems. We develop a common framework based on structure and function to assess students' responses across diagram and verbal modes. Visualisation is defined in terms of understanding transformations on structure and relating…

In Singapore, 6-12 year-old students are taught to solve algebra word problems with a mix of arithmetic and pre-algebraic strategies; 13-17 year-olds are typically encouraged to replace these strategies with letter-symbolic algebra. We examined whether algebra problem-solving proficiency amongst beginning learners of letter-symbolic algebra is…

In two experiments, we examined whether 14-month-olds understand the subjective nature of gaze. In the first experiment, infants first observed an experimenter express happiness as she looked inside a container that either contained a toy (reliable looker condition) or was empty (unreliable looker condition). Then, infants had to follow the same…

Schools in the United States are faced with an increasingly diverse student population and a dramatic increase in the number of English language learners (ELLs) in all grades. As such diverse populations grow in this era of high-stakes testing and accountability, there is increased pressure to make science accessible to all. To help promote…

Computational models of analogy have assumed that the strength of an inductive inference about the target is based directly on similarity of the analogs and in particular on shared higher order relations. In contrast, work in philosophy of science suggests that analogical inference is also guided by causal models of the source and target. In 3…

Children are selective and flexible imitators. They combine their own prior experiences and the perceived causal efficacy of the model to determine whether and what to imitate. In Experiment 1, children were randomly assigned to have either a difficult or an easy experience achieving a goal. They then saw an adult use novel means to achieve the…

A number of available resources offer guidance about hypermedia design strategies, many of which rely on principles of user-centered design. Many recent efforts, however, have focused more on developing "learner-centered" hypermedia. Learner-centered hypermedia is designed to help learners achieve their educational goals, rather than offer mere…

The national imperative to improve postsecondary degree completion has led to various innovations within colleges and universities to improve student retention and academic success, particularly of non-traditional learners. One innovation that has been in use since the 1970s, but is often under-promoted and under-utilized within institutions, is…

This dissertation presents two studies designed to examine the topic of fraction division in selected Chinese and US curricula. By comparing the structure and content of the Chinese and "Everyday Mathematics" textbooks and teacher's guides, Study 1 revealed many different features presented in the selected curricula. Major differences…

The purpose of this study was to examine the characteristics of continuing professional education, professional development, and other growth activities that most heavily influence the practice of school social workers. It was a qualitative study framed by heuristic inquiry using in depth interviews with twenty participants from two western…

Individuals moving from job to job are argued as a feature of reflexive modernity. This trend is reflected in the increasing number and diversity of "career changers" or "second career teachers" recruited to teaching. Having recruited teachers, retaining them in the profession is recognised as a considerable challenge. In terms…

In this article, the author talks about "Developing Early Literacy," the report of the National Early Literacy Panel. The panel, which consisted of nine experts, was convened by the National Institute for Literacy to synthesize the research on the development of literacy from birth through age 5. Over the eight years of their work, only 190…

The ability to flexibly solve problems is considered an important outcome for school mathematics and is the focus of this paper. The paper describes the impact of a three-week summer course for students who struggle with algebra. During the course, students regularly compared and contrasted worked examples of algebra problems in order to promote…

This study examines six US social studies teachers' beliefs and curricular decisions that impact their teaching about Asia. Using interview data, the study seeks to understand the forces that influence what, how, and when teachers teach about Asia in their secondary classes, if and how they position Asians as "others", and what bearing…