Multimedia learning and individual differences: Mediating the effects of working memory capacity with segmentation

Research in multimedia learning lacks an emphasis on individual difference variables, such as working memory capacity (WMC). The effects of WMC and the segmentation of multimedia instruction were examined by assessing the recall and application of low (n=66) and high (n=67) working memory capacity students randomly assigned to either a segmented instruction (SI) or non-segmented instruction (NSI) version of a multimedia tutorial on historical inquiry. WMC was found to have a significant, positive effect on participants' recall and application scores; however, the use of segmentation mediated the effects of WMC to allow learners with lower WMC to recall and apply equal to those with higher WMC.     

Stem Cells and Society: An Undergraduate Course Exploring the Intersections among Science, Religion, and Law

The intersection of science and our society has led to legal and ethical issues in which we all play a part. To support development of scientific literacy, college science courses need to engage students in difficult dialogues around ethical issues. We describe a new course, Stem Cells and Society, in which students explore the basic biology of stem cell research and the controversy surrounding it. As part of the course, we highlight the nature of science, looking at the methods and norms within the scientific community. To gain a perspective on the current stem cell controversy, we examine the public debates in the 1970s surrounding in vitro fertilization, the stem cell initiative in Missouri, and the personal and religious viewpoints that have emerged relative to the stem cell debate. In the Stem Cells and Society course, students are challenged to develop and clarify their own personal positions concerning embryonic stem cell research. These positions are grounded in science, religion or personal philosophy, and law.     

翼龙的起飞

翼龙是一群会飞的爬行动物,和恐龙同时灭绝于6500万年前。传统的观点认为,翼龙骨骼构造独特轻巧,和长颈鹿差不多高,必须从悬崖上跳起来才能滑翔飞行。但是科学家提出的一种新观点引起了全世界古生物学家的关注。约翰·霍普金斯大学的博士生迈克·哈比称,这些体重最大可达500多磅的像龙一样的生物,可以从平地起飞。     

The Reliability of Free School Meal Eligibility as a Measure of Socio-Economic Disadvantage: Evidence from the Millennium Cohort Study in Wales

Over the last 20 years, the use of administrative data has become central to understanding pupil attainment and school performance. Of most importance has been its use to robustly demonstrate the impact of socio-economic status (SES) on pupil attainment. Much of this analysis in England and Wales has relied on whether pupils are eligible for free school meals (eFSM). However, very little is known about the validity of this measure as a proxy for SES. Using a recent major birth cohort study, this paper examines the relationship between pupils’ eFSM and their more detailed socio-economic circumstances.     

Premier League academy soccer players’ experiences of competing in a tournament bio-banded for biological maturation

Individual differences in the growth and maturation have been shown to impact player performance and development in youth soccer. This study investigated Premier League academy players’ experiences of participating in a tournament bio-banded for biological maturation. Players (N = 66) from four professional soccer clubs aged 11 and 14 years and between 85–90% of adult stature participated in a tournament. Players competed in three 11 vs 11 games on a full size pitch with 25-min halves. Sixteen players participated in four 15-min focus groups and were asked to describe their experiences of participating in the bio-banded tournament in comparison to age group competition. All players described their experience as positive and recommended the Premier League integrate bio-banding into the existing games programme. In comparison to age-group competitions, early maturing players described the bio-banded games more physically challenging, and found that they had to adapt their style of play placing a greater emphasis on technique and tactics. Late maturing players considered the games to be less physically challenging, yet appreciated the having more opportunity to use, develop and demonstrate their technical, physical, and psychological competencies. Bio-banding strategies appear to contribute positively towards the holistic development of young soccer players.     

Design for Scalability: A Case Study of the River City Curriculum

One-size-fits-all educational innovations do not work because they ignore contextual factors that determine an intervention’s efficacy in a particular local situation. This paper presents a framework on how to design educational innovations for scalability through enhancing their adaptability for effective usage in a wide variety of settings. The River City multi-user virtual environment (MUVE), a technology-based curriculum designed to enhance engagement and learning in middle school science, is presented as a case study. To date over 250 teachers and 15,000 students throughout the United States and Canada have participated in the River City curriculum. Designers creating and evolving interventions can use this scaling framework to help them increase effectiveness, sustainability, and spread.     

The Negotiated Project Approach: Project-Based Learning without Leaving the Standards Behind

The purpose this study was to explore how a veteran first-grade teacher collaboratively negotiated the implementation of a project with her students while, at the same time, addressed grade-level standards. Researchers investigated the teacher’s strategies for integrating the district’s standards into project topics, investigative activities, and final presentations. They also examined the teacher’s strategies for promoting students’ participation in project planning and independent problem-solving. Data sources included field notes, teacher interviews, videotaped observations, and transcribed teacher, and student interviews. As an extension to teacher-directed approaches to implementing the project approach, the results of this study revealed a collaborative approach to implementing projects that allowed the teacher and the students to work together for project planning and learning. The teacher felt successful with meeting grade level learning needs, and the students were given the opportunity to fuel their learning by expressing their natural interests and curiosities, and become problem solvers.     

The mathematical strengths and weaknesses of children with dyslexia

This paper reports the findings of two related studies that examined the mathematical strengths and weaknesses of children with dyslexia. In study one, dyslexic children were compared to children without special educational needs on tests that assessed arithmetic fact recall, place value understanding and counting speed. Study two used the same methodology, but matched the dyslexic children with the non‐dyslexic children on a number of factors, including intellectual ability. This excluded the possibility that confounding variables accounted for the differences between the groups in study one. Both studies indicated that the dyslexic children had slower and less accurate number fact recall than the non‐dyslexic children, but had unimpaired place value understanding. The results for counting speed were more equivocal, but there was a trend for the dyslexic children to be slower counters. The results suggest that dyslexia is not normally associated with a general mathematical impairment, but rather an uneven profile of skills. This profile can be explained in terms of the phonological processing weaknesses associated with dyslexia. The finding that dyslexic children have a specific difficulty recalling arithmetic facts suggests that a teaching programme that emphasises mental methods may disadvantage them.     

Human and animal perceptual learning: Some common and some unique features

A selective summary of the four contributions to this special issue of Learning & Behavior on perceptual learning is presented. Mackintosh and Hall propose an associative analysis of perceptual learning. It is argued that Tsushima and Watanabe’s psychophysical evidence and Fiser’s Bayesian-modeling work represent (in different ways) challenges to the associative approach. Some tentative suggestions are explored with regard to how animal learning theorists might meet these challenges. Finally, the role of awareness in perceptual learning is briefly examined.