190 research outputs found
Active Facilitation: What Do Specialists Need to Know and How Might They Learn It?
Sustained, innovative professional development is now widely acknowledged as essential to the improvement of mathematics instruction in the nationâs schools. In recent years, this recognition has prompted the production of a variety of materials designed to support new teacher development programs. However, with the availability of such materials, serious concerns arise as to the kinds of knowledge required of professional development providers, often teachers who have been assigned Mathematics Specialist roles, and the means by which this knowledge is to be acquired. The authors of this paper address such questions in the context of one professional development seminar, Developing Mathematical Ideas [1]. Our paper builds on the research of Remillard and Geist who identify the potential for learning in those moments of discontinuityââopenings in the curriculum âin which the beliefs, knowledge, and commitments of seminar participants diverge from those of facilitators or materials developers [2]. By looking closely at several such moments. we establish how successful facilitation entails deep content knowledge, awareness of seminar goals, and appreciation of the beliefs and understandings of seminar participants. We then describe the kinds of supports available to DMI facilitators to help them cultivate the skills and knowledge needed to exploit these openings productively. While the paper focuses particularly on professional development seminars. we suggest that our conclusions apply to Mathematics Specialistsâ tasks more generally
The Distance Education Evolution: Issues and Case Studies
Gisela Gil-Egui is a contributing author, Online teaching, copyrights, and the need for concerted solutions (p.185-190) and with S.F. Shields, and C.M. Stewart, Certain about uncertainty: Strategies and practices for virtual teamwork in online classrooms (p.116-141).
Book description: The Distance Education Evolution: Case Studies addresses issues regarding the development and design of online courses, and the implementation and evaluation of an online learning program. Several chapters include design strategies for online courses that range from the specific to the universal. Many authors address pedagogical issues from both a theoretical and applied perspective. This diverse compilation of contributions by Temple University administrators and faculty gives a comprehensive overview of the distance education experience that can serve as a guide to others interested in providing quality distance education.https://digitalcommons.fairfield.edu/communications-books/1011/thumbnail.jp
Conceptual Development About Motion and Force in Elementary and Middle School Students
Methods of physics education research were applied to find what kinds of changes in 4th, 6th, and 8th grade student understanding of motion can occur and at what age. Such findings are necessary for the physics community to effectively discharge its role in advising and assisting pre-college physics education. Prior to and after instruction the students were asked to carefully describe several demonstrated accelerated motions. Most pre-instruction descriptions were of the direction of motion only. After instruction, many more of the students gave descriptions of the motion as continuously changing. Student responses to the diagnostic and to the activity materials revealed the presence of a third âsnapshotâ view of motion not discussed in the literature. The 4th and 6th grade students gave similar pre-instructional descriptions of the motion, but the 4th grade students did not exhibit the same degree of change in descriptions after instruction. Our findings suggest that students as early as 6th grade can develop changes in ideas about motion needed to construct Newtonian-like ideas about force. Studentsâ conceptions about motion change little under traditional physics instruction from these grade levels through college level
AP-PA field orientation followed by IMRT reduces lung exposure in comparison to conventional 3D conformal and sole IMRT in centrally located lung tumors
Little attention has been paid to the fact that intensity modulated radiation therapy (IMRT) techniques do not easily enable treatment with opposed beams. Three treatment plans (3 D conformal, IMRT, and combined (anterior-posterior-posterio-anterior (AP-PA) + IMRT) of 7 patients with centrally-located lung cancer were compared for exposure of lung, spinal cord and esophagus. Combined IMRT and AP-PA techniques offer better lung tissue sparing compared to plans predicated solely on IMRT for centrally-located lung tumors
Mathematical practices and mathematical modes of enquiry: Same or different?
Background:
In this paper, I share a case study of a teacherâs work on mathematics tasks in the context of a âmathematics for teachingâ course aiming to develop mathematical content understandings and mathematical practices among primary teachers in one South African province. The course was developed in a national context of concerns about the nature and levels of primary teachersâ mathematical knowledge. Theories viewing mathematical practices as fundamental, contrasted with those that view mathematical practices and mathematical content in more separate and âto be integratedâ ways, are used to frame the analysis and ritically reflect on the findings.
Results: Data from this teacherâs pre-test and selected course assessments and interactions suggest that while he was able to develop some aspects of the mathematical practices described in the literature, his overall orientation remained attuned to memorization and recall. Findings also pointed to an ongoing reliance on external validation of the âcorrectnessâ of his answers.
Conclusions: The data suggest that the presence of elements of mathematical practices cannot be viewed as equivalent to the presence of mathematical modes of enquiry. The analysis presented in this paper suggests that while elements of mathematical practices can be developed, moving towards an encompassing orientation to
mathematical modes of enquiry may require more central focus on problem-solving approaches to achieve a change in orientation
Renal obstructive dysplasia: Ultrasound diagnosis and therapeutic implications
57 cases of renal obstructive dysplasia (defined as the abnormal development of nephronic and ductal structures due to in utero obstruction of the urinary tract) were evaluated in terms of sonographic findings, renal and other associated anomalies, and current status of the child. More than one-third of the cases had bilateral disease and although not uniformly fatal bilateral involvement was associated with significant morbidity and mortality. In 12 of the 33 cases with unilateral dysplasia there was an association with contralateral renal problems including ureteropelvic junction obstruction, vesicoureteral reflux and aplasia. Almost one-half of the cases had congenital anomalies, these included VACTERL association, congenital heart disease, cranial abnormalities and gastrointestinal malformations. Fifteen stillborns and 12 of the patients with bilateral involvement and four with unilateral involvement have died. Four patients are on dialysis (two with bilateral involvement and two with unilateral renal obstructive dysplasia). Only one-quarter are otherwise normal. More serious problems are reported in this mixed age population of patients with obstructive renal dysplasia than has been identified in previous studies. Management decisions of the fetus and child must be based on this new age-expanded population.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46696/1/247_2005_Article_BF02018623.pd
Advances and unmet needs in genetic, basic and clinical science in Alport syndrome::report from the 2015 International Workshop on Alport Syndrome
Alport syndrome (AS) is a genetic disease characterized by haematuric glomerulopathy variably associated with hearing loss and anterior lenticonus. It is caused by mutations in the COL4A3, COL4A4 or COL4A5 genes encoding the α3α4α5(IV) collagen heterotrimer. AS is rare, but it accounts for >1% of patients receiving renal replacement therapy. Angiotensin-converting enzyme inhibition slows, but does not stop, the progression to renal failure; therefore, there is an urgent requirement to expand and intensify research towards discovering new therapeutic targets and new therapies. The 2015 International Workshop on Alport Syndrome targeted unmet needs in basic science, genetics and diagnosis, clinical research and current clinical care. In three intensive days, more than 100 international experts including physicians, geneticists, researchers from academia and industry, and patient representatives from all over the world participated in panel discussions and breakout groups. This report summarizes the most important priority areas including (i) understanding the crucial role of podocyte protection and regeneration, (ii) targeting mutations by new molecular techniques for new animal models and potential gene therapy, (iii) creating optimal interaction between nephrologists and geneticists for early diagnosis, (iv) establishing standards for mutation screening and databases, (v) improving widespread accessibility to current standards of clinical care, (vi) improving collaboration with the pharmaceutical/biotech industry to investigate new therapies, (vii) research in hearing loss as a huge unmet need in Alport patients and (viii) the need to evaluate the risk and benefit of novel (including 'repurposing') therapies on an international basis
Physicians' use of the 5As in counseling obese patients: is the quality of counseling associated with patients' motivation and intention to lose weight?
<p>Abstract</p> <p>Background</p> <p>Physicians are encouraged to counsel obese patients to lose weight, but studies measuring the quality of physicians' counseling are rare. We sought to describe the quality of physicians' obesity counseling and to determine associations between the quality of counseling and obese patients' motivation and intentions to lose weight, key predictors of behavior change.</p> <p>Methods</p> <p>We conducted post-visit surveys with obese patients to assess physician's use of 5As counseling techniques and the overall patient-centeredness of the physician.. Patients also reported on their motivation to lose weight and their intentions to eat healthier and exercise. One-way ANOVAs were used to describe mean differences in number of counseling practices across levels of self-rated intention and motivation. Logistic regression analyses were conducted to assess associations between number of 5As counseling practices used and patient intention and motivation.</p> <p>Results</p> <p>137 patients of 23 physicians were included in the analysis. While 85% of the patients were counseled about obesity, physicians used only a mean of 5.3 (SD = 4.6) of 18 possible 5As counseling practices. Patients with higher levels of motivation and intentions reported receiving more 5As counseling techniques than those with lower levels. Each additional counseling practice was associated with higher odds of being motivated to lose weight (OR 1.31, CI 1.11-1.55), intending to eat better (OR 1.23, CI 1.06-1.44), and intending to exercise regularly (OR 1.14, CI 1.00-1.31). Patient centeredness of the physician was also positively associated with intentions to eat better (OR 2.96, CI 1.03-8.47) and exercise (OR 26.07, CI 3.70-83.93).</p> <p>Conclusions</p> <p>Quality of physician counseling (as measured using the 5As counseling framework and patient-centeredness scales) was associated with motivation to lose weight and intentions to change behavior. Future studies should determine whether higher quality obesity counseling leads to improved behavioral and weight outcomes.</p
Repositioning Ourselves: acknowledging contradiction
The essence of this paper is to present a self-study that resulted in the awareness of discrepancies that existed between our beliefs and practices as teacher educators and educational researchers. On the one hand, we assessed the impact of our teaching on participants of a professional development program. We analyzed the participants’ abilities to explore student voices as input for improving the teaching of mathematics. On the other hand, as we categorized and characterized our participants’ reflections using the tools of qualitative inquiry, the end effect was to distort and even silence those voices as an input for improving our own instruction, denying participants both agency and identity. This presented us with a living contradiction since this stance conflicted with our belief that learners deserve both agency and identity.  
- âŠ