Big Math for Little Kids: The Effectiveness of a Preschool and Kindergarten Mathematics Curriculum     

Ashley Lewis Presser  Margaret Clements  Herbert Ginsburg  Barbrina Ertle 《Early education and development》2015,26(3):399-426

Research Findings: Big Math for Little Kids (BMLK) is a mathematics curriculum developed for use with 4- and 5-year-old children. To investigate the BMLK curriculum's effect on children's mathematics knowledge, this cluster-randomized controlled trial randomly assigned child care centers to provide mathematics instruction to children, using either the BMLK mathematics curriculum or the centers’ business-as-usual curriculum, over a 2-year period when children were in prekindergarten and kindergarten. Participants in the study were 762 children and their teachers at 16 publicly subsidized child care centers. The study assessed children's mathematics knowledge using the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), Direct Mathematics Assessment, a measure of young children's mathematics knowledge that is not aligned with the curriculum. The ECLS-B scores of children in the BMLK group increased significantly more than did those of children in the comparison group. The study also included exploratory analyses to examine whether children in the BMLK group demonstrated evidence of improved mathematical language. Practice or Policy: These results indicate that the BMLK curriculum, which is designed to help teachers use play-based, developmentally appropriate mathematics instruction, has a positive impact on young children's mathematics knowledge as measured by a general mathematics assessment that is not aligned with the curriculum.  相似文献   

Increasing Parent Involvement Among Head Start Families: A Randomized Control Group Study     

Kendall Jeffries DeLoatche  Kathy L. Bradley-Klug  Julia Ogg  Jeffrey D. Kromrey  Ashley N. Sundman-Wheat 《Early Childhood Education Journal》2015,43(4):271-279

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Teaching Science as a Process,Not a Set of Facts     

Öberg  Gunilla  Campbell  Alice  Fox  Joanne  Graves  Marcia  Ivanochko  Tara  Matsuchi  Linda  Mouat  Isobel  Welsh  Ashley 《Science & Education》2022,31(3):787-817

Science & Education - The widespread misperception of science as a deliverer of irrefutable facts, rather than a deliberative process, is undermining public trust in science. Science education...  相似文献   

Hands-On: Investigating the role of physical manipulatives in spatial training     

Katie A. Gilligan-Lee  Zachary C. K. Hawes  Ashley Y. Williams  Emily K. Farran  Kelly S. Mix 《Child development》2023,94(5):1205-1221

Studies show that spatial interventions lead to improvements in mathematics. However, outcomes vary based on whether physical manipulatives (embodied action) are used during training. This study compares the effects of embodied and non-embodied spatial interventions on spatial and mathematics outcomes. The study has a randomized, controlled, pre-post, follow-up, training design (N = 182; mean age 8 years; 49% female; 83.5% White). We show that both embodied and non-embodied spatial training approaches improve spatial skills compared to control. However, we conclude that embodied spatial training using physical manipulatives leads to larger, more consistent gains in mathematics and greater depth of spatial processing than non-embodied training. These findings highlight the potential of spatial activities, particularly those that use physical materials, for improving children's mathematics skills.  相似文献   

Responding to racism at school: Ethnic-racial socialization and the academic engagement of Black and Latinx youth     

Kimberly R. Osborne  Ashley A. Walsdorf  Mia A. Smith-Bynum  Samantha Redig  Dawn Brinkley  Margaret Tresch Owen  Margaret O’Brien Caughy 《Child development》2023,94(1):219-236

Guided by the Theory of Racial Socialization in Action (TRSA; Smith-Bynum in press), this study examined observed caregiver-provided ethnic-racial socialization in response to a school-based discriminatory dilemma. Forty-five Black and 36 Latinx caregivers (88% mothers) with low-income and their children (M_age = 11.09, SD = 0.29; 46.3% female) participated in Dallas, Texas from 2018 to 2019. Dyads responded to a hypothetical scenario in which a school counselor makes a discriminatory comment to the child. Results of a factor mixture analysis suggested that caregivers engaged in the dialogue using one of four approaches: Low-engaged, Legacy, Racial Literacy, or High-engaged. Profiles were found to differ significantly by the race/ethnicity and language of caregivers and were associated with youth’s concurrent behavioral engagement (R² = .04).  相似文献   

Effects of different warm-up modalities on power output during the high pull     

Matthew John Barnes  Ashley Petterson  Darryl J. Cochrane 《Journal of sports sciences》2017,35(10):976-981

This study compared the effects of six warm-up modalities on peak power output (PPO) during the high-pull exercise. Nine resistance-trained males completed six trials using different warm-ups: high-pull specific (HPS), cycle, whole body vibration (WBV), cycle+HPS, WBV+HPS and a control. Intramuscular temperature (T_m) was increased by 2°C using WBV or cycling. PPO, T_m and electromyography (EMG) were recorded during each trial. Two high-pulls were performed prior to and 3 min after participants completed the warm-up. The greatest increase in PPO occurred with HPS (232.8 ± 89.7 W, P < 0.001); however, this was not different to combined warm-ups (cycle+HPS 158.6 ± 121.1 W; WBV+HPS 177.3 ± 93.3 W, P = 1.00). These modalities increased PPO to a greater extent than those that did not involve HPS (all P < 0.05). HPS took the shortest time to complete, compared to the other conditions (P < 0.05). EMG did not differ from pre to post warm-up or between modalities in any of the muscles investigated. No change in T_m occurred in warm-ups that did not include cycling or WBV. These results suggest that a movement-specific warm-up improves performance more than temperature-related warm-ups. Therefore, mechanisms other than increased muscle temperature and activation may be important for improving short-term PPO.  相似文献   

Effects of extracurricular activities on postsecondary completion for students with disabilities     

Ashley N. Palmer  William Elliott III  Gregory A. Cheatham 《The Journal of educational research》2017,110(2):151-158

The authors focused on participation in extracurricular activities as a way of improving the educational outcomes of children with disabilities. Regarding students in the general population, adolescent involvement in extracurricular activities has been shown to have a positive association with school involvement and adolescent self-esteem, academic achievement, and adolescent development. Using the Educational Longitudinal Study dataset, the authors conducted logistic regression analyses to examine the relationship between participation in high school–sponsored extracurricular activities and postsecondary degree completion for students with disabilities. Findings show a statistically significant association between postsecondary degree completion for students with disabilities and extracurricular activity participation, including extent and type of extracurricular activity. Students with disabilities who participate in high school extracurricular activities may have increased likelihood of completing a postsecondary degree. Implications for policy, practice, and future research are discussed.  相似文献   

“Nobody Really Wants to be Called Bossy or Domineering”     

Samiyyah Black  Carolina Estrada  Mirza Carolina de la Fuente  Ashley Orozco  Andrew Trabazo  Sofia de la Vega 《Journalism Practice》2019,13(1):35-51

This article examines talks given by 12 female media professionals at a Southern US university’s center on women in communication between 2013 and 2015 to identify the influence of hegemonic masculinity in industry speak about women and professionalism in the fields of journalism, advertising, and public relations. This paper applies a feminist critique of discussions about “work–life balance,” “leaning in,” “emotion,” and language about the role of technology and innovation in women’s careers, to argue that inherent in these discussions about media professionalism are traits that perpetuate binary notions of feminine–masculine traits of the workplace. As a whole, these messages fail to account for notions of intersectionality and perpetuate inequality and masculine power for future professionals.  相似文献   

The effects of laboratory-oriented experiences in SCIS on the stability of cognitive style of teachers     

Rhodell G. Pringle  Ashley G. Morgan 《科学教学研究杂志》1978,15(1):47-51

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Effect of a semi electro-mechanical engine valve on performance and emissions in a single cylinder spark ignited engine     

Bülent 《浙江大学学报(A卷英文版)》2010,11(2):106-114

In this study, an electro-mechanical valve （EMV） system for the intake valve ofa fottr stroke, single cylinder, overhead valve and spark ignition （SI） engine was designed and constructed. An engine with the EMV system and a standard engine were tested to observe the effects of the EMV on engine performance and emissions at different speeds under full load. The EMV engine showed improved engine power, engine torque and break specific fuel consumption （BSFC）. A 66% decrease in CO emissions was also obtained with the EMV system, but hydrocarbons （HC） and NOx emissions increased by 12% and 13% respectively.  相似文献