Plastic brains and the dialectics of dialectics

This article advances the thinking of Lima, Ostermann and Rezende’s “Marxism in Vygotskian approaches to cultural studies of science education” and Mark Zuss’ response to their paper. Firstly, it introduces Catherine Malabou’s concept of plasticity, from which Hegel’s dialectic can be re-read as historical materialist self-determination in a way that embraces science but non-reductively, and which leads to the possibility of challenging theoretical rigidity as a form of transformative action. Secondly, this response article provides political analysis of scientific concepts as they reproduce and reinforce particular interests and are expropriated by policy makers and unaware teacher educators whose understanding lies within a technical-instrumentalism and diluted humanism framework. Both arguments feature the human brain as an object of research in science education. From Malabou, the emancipatory conceptualisation of the brain as material, historical and sociocultural; whilst ‘Brain Gym’ exemplifies a non-science and nonsensical misappropriation of scientific concepts for commercial gain via a para-educational intervention.     

Figures of Speech as Persuasive Strategies in Early Commercial Communication: The Use of Dominant Figures in the Raleigh Reports About Virginia in the 1580s

During the mid-1580s Sir Walter Raleigh, operating under letters patent of Queen Elizabeth, supported two major voyages to establish an initial colony in Virginia. These two voyages produced three major commercial reports that evaluated the economic potential of the region for English colonists and merchants. The reports, written by Arthur Barlowe, Ralph Lane, and Thomas Hariot, represent the beginnings of American commercial communication in English. Using Kenneth Burke's idea of the four major tropes, this article develops the notion of the “dominant figure”—a figure of speech that serves to focus a report's rhetorical power—to analyze the persuasive effects of these reports.     

“审美意识形态论”合法性的历史生成

20世纪80年代初,＂审美意识形态论＂甫一提出,其内部就存在逻辑断裂,其精神建构亦具有悖反性。然而,经过历次论争,并随着时代语境的变迁和学术视阈的开拓,＂审美意识形态论＂的合法性逐步得以生成。     

Development and reliability of the KIM cycling scale – a measurement tool for the development process to cycling independently

ABSTRACT

Background: Cycling has gained more attention as an important lifelong physical activity. Learning to cycle independently without assistance is a milestone for most children that requires time and practice to master. Cycling was recently added to the motor development model and so a valid and reliable measure of cycling ability is required to allow accurate assessment of the skill. Cycling has many health benefits along with being a commonly reported physical activity globally and therefore is an important skill to promote in early childhood and throughout life. To date, there are no measurement tools examining the developmental process to independent cycling in the early childhood years. The current study aimed to develop and assess the inter-rater and test-retest reliability of the ‘KIM Cycling Scale’.

Methods: Development of the scale occurred in four phases: (1) development of criteria and stages, which used observation of children when learning to cycle and expert panels to develop the initial developmental stages, (2) review of instructions and criteria and pilot inter-rater and test-retest reliability, to ensure that the scale could be used as a standalone scale without requiring further instructions (3) cycling intervention, which allowed assessment of the developmental nature of children along the scale as they learn to cycle independently and to assess typical and alternate routes to independent cycling and (4) inter-rater and test-retest reliability.

Results: Ninety children took part in phase 1, thirty-six children took part in phase 2, seventy-four children took part in phase 3 and one hundred and forty-nine children took part in phase 4. All three hundred and forty-nine children were between 2 and 6 years. The developed scale included eight stages in total. The scale was found to have excellent inter-rater reliability (ICC?=?0.97, 95% CI?=?0.96–0.98) and good to excellent test-retest reliability [(ICC?=?0.91, 95% CI?=?0.87–0.94) & (ICC?=?0.90, 95% CI?=?0.85–0.93)]. Typical routes to independent cycling along the scale were examined and reported as being step-wise on all occasions except one where a two stage jump was as common as the step-wise route. Alternate routes were also reported.

Conclusion: The current study developed a reliable measurement tool for assessing children between 2 and 6 years of age on the developmental process to independent cycling. Having a cycling scale will allow teachers and practitioners to assess competence in cycling and moreover, track changes in skill development. Furthermore, parents could also use the scale to better understand and better asses their child’s progression when learning to cycle.     

The Effects of Paraphrasing Interventions on Problem‐Solving Accuracy for Children at Risk for Math Disabilities

The purpose of this study was to examine effectiveness of paraphrasing interventions on mathematics word problem‐solving accuracy in third grade children (N = 72) at risk for mathematics disabilities (MD). Three instructional conditions directed students’ attention through paraphrasing, via writing, to different propositions within word problems. Students were randomly assigned to one of four intervention conditions: paraphrase question propositions (restate), paraphrase relevant propositions (relevant) and paraphrase all propositions (complete) or an untreated control. A mixed ANCOVA indicated that paraphrasing relevant and complete propositions significantly increased posttest accuracy when compared to the control and restate condition. Results from the study provide support for the effectiveness of paraphrasing interventions that directs students to restate/paraphrase propositions of mathematics word problems relative to the control condition.     

Cut points of the Actigraph GT9X for moderate and vigorous intensity physical activity at four different wear locations

ABSTRACT

Accelerometer cut points are an important consideration for distinguishing the intensity of activity into categories such as moderate and vigorous. It is well-established in the literature that these cut points depend on a variety of factors, including age group, device, and wear location. The Actigraph GT9X is a newer model accelerometer that is used for physical activity research, but existing cut points for this device are limited since it is a newer device. Furthermore, there is not existing data on cut points for the GT9X at the ankle or foot locations, which offers some potential benefit for activities that do not involve arm and/or core motion. A total of N = 44 adults completed a four-stage treadmill protocol while wearing Actigraph GT9X sensors at four different locations: foot, ankle, wrist, and hip. Metabolic Equivalent of Task (MET) levels assessed by indirect calorimetry along with Receiver Operating Characteristic (ROC) curves were used to establish cut points for moderate and vigorous intensity for each wear location of the GT9X. Area under the ROC curves indicated high discrimination accuracy for each case.     

Examining organizational climate in institutions of higher education

Two major questions related to organizational climate have existed in the organizational theory literature for the past twenty years. First, at what level of analysis should the construct of climate be operationalized (i.e., does climate have greater relevance at an organizationwide or subunit level?). Second, in what specific ways do organizations with positive climates differ from those with comparatively more negative climates. This study examines organizational climate in nine four-year public colleges and utilizes data from 2,937 respondents. The most significant findings are: (1) Climate does have relevance at the organizational level in that it distinguishes carnpuses from one another, but subunits, particularly academic departments, account for the largest proportion of variance; (2) administrators have significantly and consistently more positive perceptions of organizational climate than do faculty; (3) faculty at campuses with comparatively more positive climates report greater goal clarity and performance standards.     

Nurturing Emergent Readers Through Readers Theater

Readers theater is a familiar literacy strategy for children who can read independently; however, it can also be used with younger children who have not yet developed independent reading skills. The purpose of this article is to adapt the concept of readers theater for use with emergent readers. It focuses first on defining readers theater and its many benefits, particularly in the areas of literacy development. Finally, it includes suggestions for successfully implementing a readers theater program with young children.     

“I am not simply learning and regurgitating information,I am also learning about myself”: learning portfolio practice and online distance students

This case study explored the experience of learning portfolio practice and whether learning portfolio practice facilitated the development of critical thinking skills among online distance students. Data were generated using the participant learning portfolio entries and two-time semi-structured interviews. Five themes were constructed in the data-led thematic analysis: being an online distance student, the experience of learning with a learning portfolio, my approach to learning, thinking critically in my learning portfolio, the sociology discipline context. Findings indicate that learning portfolio practice can enhance the nature of the learning experience by providing students with a personal space to evaluate their own learning, to process their thoughts and experience and to document their lives and learning in an authentic and meaningful way. The findings suggest that learning portfolio practice can facilitate the development of critical thinking skills within a disciplinary context.