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Residual categories are those which cannot be formally represented within a given classification system. We examine the forms
that residuality takes within our information systems today, and explore some silences which form around those inhabiting
particular residual categories. We argue that there is significant ethical and political work to be done in exploring residuality. 相似文献
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This paper explores the development of students’ knowledge of mathematical procedures. Students’ tendency to develop rote knowledge of procedures has been widely commented on. An alternative, more flexible endpoint for the development of procedural knowledge is explored here, where students choose to deviate from established solving patterns on particular problems for greater efficiency. Students with no prior knowledge of formal linear equation solving techniques were taught the basic transformations of this domain. After instruction, students engaged in problem-solving sessions in two conditions. Treatment students completed the “alternative ordering task,” where they were asked to re-solve a previously completed problem but using a different ordering of transformations. Those completing alternative ordering tasks demonstrated greater flexibility. 相似文献
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Video has assumed an increasingly prominent role in teacher education, particularly in the form of the viewing of videotaped
class lessons by preservice teachers. Yet there is little research that confirms whether preservice teachers attend to the
aspects of the video(s) that teacher educators anticipate or desire. This article explores this issue and reports on the impact
of video viewing as a means to improve teachers’ ability to be observers of classroom practice. We utilized a pre- and post-test
design to measure the quantity and type of classroom events that preservice mathematics teachers noticed before and after
a teaching methods course where improving observation skills was an explicit goal. The results of the pre-assessment suggest
that preservice teachers generally do not enter teaching methods courses with well-developed observation skills. The post-assessment
indicates that the course led to significant increases in preservice teachers’ observation skills, particularly in teachers’
ability to notice features of the classroom environment, mathematical content of a lesson, and teacher and student communication
during a lesson.
相似文献
| Jon R. StarEmail: |
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The importance of feedback for learning has been firmly established over the past few decades. The question of whether feedback plays a significant role in the statistical learning abilities of adults with dyslexia, however, is currently unresolved. Here, we examined the role of feedback in grammaticality judgment, type of structural knowledge, and confidence rating in both typically developed and dyslexic adults. We implemented two artificial grammar learning experiments: implicit and explicit. The second experiment was directly analogous to the first experiment in all respects except training format: the standard memorization instruction was replaced with an explicit rule-search instruction. Each experiment was conducted with and without performance feedback. While both groups showed significantly improved learning in the feedback-based explicit artificial grammar learning task, only the typically developed adults demonstrated higher levels of conscious structural knowledge. The present study demonstrates that the basis for the grammaticality judgment of adults with dyslexia differs from that of typically developed adults, regardless of increase in the level of explicitness. 相似文献
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Brittany Star Overstreet Scott E. Crouter George A. Butler Cary M. Springer David R. Bassett 《Measurement in physical education and exercise science》2016,20(3):140-145
The purpose of this article was to examine the validity of self-reported pedometer steps/day. Forty-seven participants were provided a New Lifestyles NL-2000 (NL-2000; Lees Summit, MO, USA) pedometer and a physical activity (PA) diary for 3 weeks, but not informed of the data-storing capabilities. For weeks 2 and 3, each participant was given a step goal of 3,000 steps/day above week 1 average. A 2 × 3 repeated measures analysis of variance (ANOVA) was used to examine differences between reported steps/day. Bland–Altman plots assessed the mean bias and limits of agreement between reporting methods. Mean self-reported and NL-2000 steps/day were 9,264 ± 3,555 and 8,971 ± 3,590 steps/day (n = 26, p > .05). Mean biases were 216 ± 1,753 (week 1), –506 ± 1,355 (week 2), and –590 ± 1,360 (week 3) steps/day. Negative mean bias values indicate higher self-reported steps/day. Mean steps/day were similar between recording methods, but large differences were observed among individuals, suggesting self-reported steps/day may be valid for PA research at the population level, but not the individual level. 相似文献
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The impact of national curriculum context on mathematics related beliefs of 12 beginning middle grades mathematics teachers was investigated after the teacher education program and first-year teaching through interviews and a combination of three belief frameworks. National curriculum requirements, lack of effective mentoring programs, and preservice tutoring experiences were detected as the major factors impacting beliefs. Participants simultaneously had teacher-centered and student-centered beliefs, causing inconsistency in beliefs and practices. While participants’ preservice and first-year experiences contrasted, they developed contextual beliefs to deal with the difficulties. Reflections on teacher education and beginning teacher support policies in national curriculum contexts were discussed. 相似文献
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Lisa L. Frey Denise Beesley Rebecca Hurst Star Saldana Brian Licuanan 《Journal of College Counseling》2016,19(1):17-30
Using the relational–cultural model (Jordan, Kaplan, Miller, Stiver, & Surrey, 1991), the authors hypothesized that instrumentality, expressivity, and the individual affective experience of same‐sex friendships would predict increased relationship mutuality, with college women and men showing different predictive patterns. Overall, results supported the hypotheses. Gender moderated the associations among variables, notably between mutuality and individual affective experiences of same‐sex friendships. Implications for counselors serving college student populations are discussed. 相似文献
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