New teachers of color and culturally responsive teaching in an era of educational accountability: Caught in a double bind

The purpose of this article is to examine how and to what extent schools’ responses to accountability policies in the United States influence the ability of new teachers of color to draw on their own and their students’ cultural resources to engage in culturally responsive teaching. A 5-year study of 17 new teachers of color reveals that these teachers identified three principal tensions which correspond to the three dimensions of culturally responsive teaching: (a) cultural and linguistic relevance versus standardization, (b) community of learners versus teacher transmission, and (c) social justice versus enhanced test scores. The teachers also described two mechanisms by which accountability-based programs and policies were enforced: fear of monitoring and internalizing the link between testing and educational opportunity. We applied the metaphor of “double bind” to explain the tensions and enforcement mechanisms encountered by these teachers. The “double bind” forced the new teachers of color to enact contradictory systemic demands promoted by government policy and the teaching profession and exacted an individual toll. We conclude with implications for policy, practice, and research.     

Coordination of hitting movement revealed in baseball tee-batting

Baseball batters must react to pitches delivered to different locations within the strike zone by modulating their movements. In tee-batting practice, such batters place a ball on a tee stand at a location, where they intend to hit the ball, assuming a particular pitch’s trajectory. In the present study, we analysed three-dimensional movements in tee-batting to identify characteristics of the batters’ intended impact locations across the strike zone, thereby investigating spatiotemporal features of movement modulation. More specifically, 10 experienced baseball batters performed tee-batting at their preferred impact locations at nine different heights and courses within the strike zone. The distribution of impact locations showed regularity, i.e., the location shifted forward for balls placed high and inside, while it shifted backward for balls placed low and outside. Furthermore, trunk and arm movements showed systematic modulation as the impact locations changed. The duration of bat movement was also location dependent, i.e., hitting the inside ball took more time than hitting the outside ball. Our results indicate that even though movements among body segments were properly coordinated to adjust the bat swing for different impact locations, fine timing adjustments were also required to hit the ball at those preferred impact locations and therefore properly react to differences in flight paths.     

Predictability of observed mother-child interaction from preschool to middle childhood in a high-risk sample

This study examined predictability of observed parent-child interaction from preschool to middle childhood in 283 mother-child dyads. Participants were welfare recipients enrolled in the Observational Study of the Job Opportunities and Basic Skills Training Program. Structured observational sessions were conducted both at preschool age and middle childhood, and were coded for maternal social behavior, child social behavior, and dyadic interaction. Analyses explored direct relations between the assessments; relations between the assessments with possible third-variable influences, such as maternal literacy, covaried out; and moderated relations. Results indicated that observed mother-child interaction in middle childhood could be significantly predicted from observed interaction 4 years earlier. Risk status moderated the relations such that those families with greater risk factors tended to show more stability, although this stability was, at times, through maintaining suboptimal functioning.     

Finance reform in Japanese higher education

One of the characteristics in Japan's system of higher education is its large private higher education sector. However, recent financing reforms have targetedmainly national universities since the largestproportion of government support to highereducation goes to these institutions. Recentreforms have been changing the structure and natureof national university finance. These changeswere also influenced by a large private sector. Private universities also compete with nationaluniversities in order to increase financialresources. Therefore, there is a need toreconsider resource allocation and thedistribution of functions among whole universities.     

Nature of worldview presuppositions among science teachers in botswana,indonesia, japan,nigeria, and the philippines

The focus of this study was to identify the nature of worldview presuppositions held by a group of science teachers from five non-western cultures. The results show that the subjects, irrespective of their cultural backgrounds, hold identical worldview presuppositions. It is not clear at this exploratory stage to what extent the subjects' alternative viewpoints influenced their scientific outlook or their science teaching. However, an analysis of the subjects' viewpoints suggests either poor conceptualizations of the nature of science or a form of collateral thinking, whereby an individual accepts or uses both mechanistic and anthropomorphic explanations depending on the context in question and without exhibiting any sign of cognitive dissonance. The implications of such a scenario for the teaching-learning process are highlighted.     

Effects of equine racetrack surface type, depth, boundary area, and harrowing on dynamic surface properties measured using a track-testing device in a laboratory setting

The dynamic behaviour of racetrack surfaces during hoof impact is a likely risk factor for racehorse injuries and fatalities. A track-testing device that simulates equine hoof impact was used to assess the effects of surface type (dirt, synthetic), surface depth (2, 3, 4 layers), test boundary area (929, 6,606, 11,381 cm²), harrowing, and impact angle (0°, 20° from vertical) on dynamic surface properties. Surfaces were tested within a laboratory track-in-a-box. Surface type and depth, boundary area, and harrowing significantly affected dynamic surface properties during impacts (P < 0.05). The synthetic surface was generally less stiff, and had 26–73% lower maximum impact forces and load rates, than the dirt surface. Harrowing decreased stiffness and differences between dirt and synthetic properties. Measured surface stiffness was larger for the smallest depth and boundary area, but most surface properties were not significantly different between the larger boundary areas. Surfaces were less stiff with angled impacts than vertical impacts.     

Band-broadening suppressed effect in long turned geometry channel and high-sensitive analysis of DNA sample by using floating electrokinetic supercharging on a microchip

A featured microchip owning three big reservoirs and long turned geometry channel was designed to improve the detection limit of DNA fragments by using floating electrokinetic supercharging (FEKS) method. The novel design matches the FEKS preconcentration needs of a large sample volume introduction with electrokinetic injection (EKI), as well as long duration of isotachophoresis (ITP) process to enrich low concentration sample. In the curved channel [∼45.6 mm long between port 1 (P1) and the intersection point of two channels], EKI and ITP were performed while the side port 3 (P3) was electrically floated. The turn-induced band broadening with or without ITP process was investigated by a computer simulation (using CFD-ACE+ software) when the analytes traveling through the U-shaped geometry. It was found that the channel curvature determined the extent of band broadening, however, which could be effectively eliminated by the way of ITP. After the ITP-stacked zones passed the intersection point from P1, they were rapidly destacked for separation and detection from ITP to zone electrophoresis by using leading ions from P3. The FEKS carried on the novel chip successfully contributed to higher sensitivities of DNA fragments in comparison with our previous results realized on either a single channel or a cross microchip. The analysis of low concentration 50 bp DNA step ladders (0.23 μg∕ml after 1500-fold diluted) was achieved with normal UV detection at 260 nm. The obtained limit of detections (LODs) were on average 100 times better than using conventional pinched injection, down to several ng∕ml for individual DNA fragment.     

The effects of polysemy for Japanese katakana words

In these experiments, the effects of polysemy were examined as a function of word frequency for Japanese katakana words, words which have consistent character-to-sound correspondences. In the lexical decision task, an additive relationship was observed between polysemy and frequency (i.e., polysemy effects were identical for high and low frequency katakana words). In the naming task, although no word frequency effect was observed, there was a significant polysemy effect which, as in the lexical decision task, was identical for high and low frequency words. The implications of these results for conclusions about the loci of polysemy and frequency effects in lexical decision and naming tasks are discussed.