Knowledge and processes that predict proficiency in digital literacy

Proficiency in digital literacy refers to the ability to read and write using online sources, and includes the ability to select sources relevant to the task, synthesize information into a coherent message, and communicate the message with an audience. The present study examines the determinants of digital literacy proficiency by asking 150 students who had 50 min of access to the Internet and a word processor to produce a research report on whether or not their college should require all students to own a laptop computer. The resulting essay received a holistic rating from 1 to 5. Concerning knowledge underlying digital literacy, the major predictors of digital literacy proficiency (as measured by essay rating) were academic experience (undergraduate versus graduate status) and domain knowledge (based on a questionnaire), rather than technical knowledge about how to use computers (based on a questionnaire). Concerning processing during the task, the major predictors of digital literacy proficiency were integrating processes (such as number of unique sources, citations, or supporting details) rather than search processes (such as number of actions, web pages, websites, links, or search terms). In short, proficiency in digital literacy depended mainly on academic experience rather than technical experience, and on how learners organize and integrate the information they find rather than on how much information they peruse. Findings from this study suggest that the basic tenets of good scholarship apply to digital media.     

Mathematics teachers’ self-captured video and opportunities for learning

Numerous video-based programs have been developed to support mathematics teachers in reflecting on and examining classrooms interactions without the immediate demands of instruction. An important premise of such work is that teacher learning occurs at the time that the video is viewed and discussed with teachers. Recent advances in technology, however, offer new approaches for the use of video with teachers. We claim that these new technologies provide important opportunities for teacher learning prior to the viewing and discussion of video with colleagues. In particular, we believe that important teacher learning can occur from the activities of (1) capturing video from one’s own classroom and (2) selecting clips to share with others. The goal of this article is to introduce key strategies that three groups of middle and high school mathematics teachers use prior to, during, and after instruction as they engage in this work. We believe that increased attention to these strategies is necessary in order to better understand how to support teacher learning in the context of new digital technologies.     

Professional thinking in guided practice

The paper describes and analyzes the interactions between university tutors, cooperating teachers, and the student teachers in guided practice situations. The main aim of the study was to gain insights into the mode of interaction and the nature of massages transmitted in a variety of settings of practice teaching. The study reveals the dominance of evaluative comments made by cooperating teachers and their focus on issues of content. Alternative approaches and teaching modes were mentioned only rarely, cooperating teachers seem to rely mostly on their own wisdom of practice and tend to transmit traditions of “succesful” teaching modes. Student teachers were mostly passive and the mode of interaction authoritative. The paper suggests a distinction between an “incremental” versus a “comprehensive” practicum. It is suggested to focus on issue-specific post-lesson conferences which are planned jointly by student teachers, cooperating teachers, and university tutors.     

Play it safe or play to learn: mindsets and behavioral self-regulation in kindergarten

Metacognition and Learning - Individuals hold different mindsets encompassing beliefs about trait stability (stable vs. malleable) and goal orientations (performance vs. mastery). These...     

On the Limitations of Thought Experiments in Physics and the Consequences for Physics Education

Thought experiments (TEs) play a central role in physics. Wesuggest that erroneous TEs may be as important as correct TEs,and that both have a special role in an ongoing process ofconceptual refinement for physicists and for naive physicslearners. We analyze TEs related to stellar evolution andgeneral relativity made by Schwarzschild, Eddington, Landau,and Einstein. We identify the stages at which crucial errorsare done in these TEs, and the cognitive processes which leadto these errors. We argue that necessary conditions for asuccessful TE (i.e., a TE which leads to correct conclusions)are self-consistency and comprehensiveness of the relevantpicture of the world. We show that the TEs by expert physicistsand TEs by students are similar on a metacognitive level, butdifferent in details. Students' erroneous reasoning occur inall stages of a TE, whereas physicists usually make errors inthe first two stages of TEs. Then we bring evidence that Tesare more prone to errors than laboratory experiments. Next wediscuss the implications for naive physics learners, and makesuggestion for using TEs in physics education.     

Proportional reasoning: The effect of two context variables,rate type,and problem setting

This study investigated the effects of two context variables, ratio type and problem setting, on the performance of seventh-grade students on a qualitative and numerical proportional reasoning test. Six forms of the qualitative and numerical tests were designed, each form using a single context (one of two settings for each of three ratio types). Different ratio types appear to have a stronger impact on the difficulty of the qualitative and numerical proportional reasoning problems than small differences in problem setting. However, the familiarity of problem setting did show an increasingly large effect on qualitative reasoning as the difficulty of ratio type increased. We also investigated the nature of the relationships between rational number skills, qualitative reasoning about ratios, and numerical proportional reasoning. Qualitative reasoning appears to be sufficient, but not necessary for numerical proportional reasoning. The evidence for the requisite nature of rational number skills for proportional reasoning was equivocal. The implications of these findings for science education are discussed.     

Pelvic fractures in infants as a sign of physical abuse

OBJECTIVE: The purpose of this article is to describe pelvic fractures in two abused male infants, and to determine if the literature describes pelvic fractures in infants as suspicious for child physical abuse. RESULTS: Two infants are described with unexplained pelvic fractures. While in one case child abuse was obvious, careful attention to the radiological evaluation and case history led to the correct diagnosis of child abuse in the second case. A search for information regarding pelvic fractures in children resulted in information limited to the radiological and surgical literature. CONCLUSIONS: Medical providers frequently encounter children with fractures suspicious for child abuse. The most common fractures seen in abused children are metaphyseal, rib, skull, and long bone fractures. This report illustrates that pelvic fractures occurring in the absence of serious, well documented accidents should be considered highly suspicious for child physical abuse.