Documenting Science Teachers' Pedagogical Content Knowledge Through PaP-eRs

This paper examines science teachers' pedagogical content knowledge and ways in which that knowledge might be captured, articulated and portrayed to others. The research from which this paper is drawn has involved interviews with experienced science teachers in an attempt to make the tacit nature of their practice explicit. Initially, case methodology was envisaged as being a way of documenting these teachers' pedagogical content knowledge. However, over time, the form of knowledge and information that we were gathering and attempting to portray extended beyond that which could reasonably be described as being case-based. Hence we have developed an approach to articulation and portrayal based on what we call the CoRe (Content Representation) – which represents the particular content/topic of the science teaching – and PaP-eRs (Pedagogical and Professional experience Repertoire) – which help to illuminate specific aspects of the CoRe and therefore offer insights into pedagogical content knowledge itself. The results of this study offer new ways of conceptualising what pedagogical content knowledge is and how it might be captured, documented and disseminated.     

Emotional Competence, Emotion Socialization, and Young Children's Peer-Related Social Competence

This study investigated linkages between aspects of emotional competence and preschoolers' social skills with peers. Whether parental emotion socialization practices contributed to the prediction of social skill once emotional competence was statistically controlled was also of interest. Eighty-one predominantly Caucasian preschoolers were videotaped as they participated in three same-sex triadic peer situations. Four peer variables were coded from the videotapes: social initiations, the frequency with which children were the targets of positive social bids, non-constructive anger-related reactions, and prosocial acts. The emotional competence measures included situation knowledge, children's explanations of emotions, positivity of emotional expression during peer play, and emotional intensity. Maternal anger directed at the child was the measure of emotion socialization. Results revealed that the emotional competence variables were meaningfully related to the peer variables and that, for non-constructive anger reactions, maternal reports of anger explained unique variance. Results are discussed in terms of how emotional competence and emotion socialization contribute to peer behavior and the importance of designing and implementing affective intervention programs for young children and their families.     

Prevalence and demographic correlates of childhood maltreatment in an adult community sample

PURPOSE: This study had two aims: (1) to determine the prevalence of five categories of retrospectively reported childhood maltreatment in an adult community sample and (2) to examine relationships between three theoretically and practically chosen demographic variables and childhood maltreatment. METHOD: Participants were a representative sample of 967 adult men and women in the metropolitan Memphis, Tennessee area. They completed a telephone survey that included a reliable, valid questionnaire assessing five types of childhood maltreatment (i.e., emotional abuse, emotional neglect, physical abuse, physical neglect, and sexual abuse) and demographic questions. Simultaneous logistic regression analyses were used to identify demographic correlates of specific trauma types. RESULTS: Prevalence of childhood maltreatment ranged from approximately 30% for women to over 40% for men. Approximately 13% of participants reported multiple forms of maltreatment. The most common forms of trauma for both men and women were physical abuse, physical neglect, and emotional abuse, all of which were highly likely to co-occur. Race, sex, and current educational level were each associated with an increased likelihood of childhood maltreatment; differential relationships with particular maltreatment types were also observed. IMPLICATIONS: These findings highlight the importance of research on the prevalence of and risks for multiple types of childhood maltreatment, particularly in the somewhat neglected area of emotional abuse and neglect. These findings can be used to highlight the need for preventive interventions aimed at the negative sequelae of childhood maltreatment and to tailor preventive interventions to the needs and expectations of those at high risk.     

A longitudinal analysis of the alignment between children’s early word-level reading trajectories,teachers’ reported concerns and supports provided

Reading and Writing - In this longitudinal study, the word-level reading trajectories of 118 children were tracked alongside teachers’ reported concerns and types of support provided through...     

Trace and long-delay fear conditioning in the developing rat

In two experiments with rats, we examined the developmental emergence of conditioned freezing following trace and short-delay conditioning and also included a long-delay comparison group. In the short-delay and trace groups, a 10-sec conditioned stimulus (CS) was paired with shock; for the trace rats, a 10-sec trace interval followed CS termination. The long-delay groups received a 20-sec CS paired with shock, to equate for the longer interstimulus interval (ISI) in the trace group. Trace conditioning emerged later in development than did short-delay conditioning (see Moye & Rudy, 1987). Importantly, long-delay conditioning emerged in parallel with trace conditioning, at a similar time, and with similar strength. These findings suggest a role for the longer ISI, as opposed to the unfilled gap per se, in the late emergence of trace conditioning. The role of the hippocampus in trace conditioning and the possibility that young rats encode the temporal relationship between CSs and unconditioned stimuli are also considered.     

Students classified as LD and the college foreign language requirement: a quantitative analysis

This study was conducted to determine whether students classified as learning disabled (LD) who were permitted to substitute courses for the college foreign language (FL) requirement at one university would display significant cognitive and academic achievement differences when grouped by level of discrepancy between IQ and achievement, by discrepancy between achievement according to different measures, and by level of performance on phonological-orthographic processing measures, on the Modern Language Aptitude Test (MLAT), and in FL courses. Results showed that there were no differences among students with different levels of discrepancy (i.e., < 1.0 SD, 1.0-1.49 SD, and > 1.50 SD) on MLAT and American College Testing (ACT) scores, graduating grade point average (GPA) or college FL GPA. Results also showed that among students who scored below versus at or above the 25th percentile on phonological-orthographic processing measures, there were no differences on measures of IQ, ACT, MLAT, and GPA, as well as most measures of academic achievement. Implications for the use of the LD label to grant FL course substitutions or waivers, use of the MLAT in the diagnostic and course substitution/waiver process, and the validity and reliability of traditional criteria for the classification as LD are discussed.     

Dynamics of list-server discussion on genetically modified foods

Computer-mediated discussion lists, or list-servers, are popular tools in settings ranging from professional to personal to educational. A discussion list on genetically modified food (GMF) was created in September 2000 as part of the Forum on Genetically Modified Food developed by Science Controversies: Online Partnerships in Education (SCOPE), an educational project that uses computer resources to aid research and learning around unresolved scientific questions. The discussion list "GMF-Science" was actively supported from January 2001 to May 2002. The GMF-Science list welcomed anyone interested in discussing the controversies surrounding GMF. Here, we analyze the dynamics of the discussions and how the GMF-Science list may contribute to learning. Activity on the GMF-Science discussion list reflected some but not all the controversies that were appearing in more traditional publication formats, broached other topics not well represented in the published literature, and tended to leave undiscussed the more technical research developments.     

The nature of lead users and measurement of leading edge status

“Lead users” are defined as being at the leading edge of markets, and as having a high incentive to innovate. Empirical research has shown the value of lead user need and solution data to new product development processes. However, the nature of the lead user construct itself has not been studied to date. In this paper we fill this significant gap by proposing and evaluating a continuous analog to the lead user construct, which we call leading edge status (LES). We establish the validity and reliability of LES and examine the characteristics of users having high levels of this variable. We also offer a first exploration of how LES is related to traditional measures in diffusion theory such as dispositional innovativeness and time of adoption (TOA). We find a strong relationship and explain how users with high LES can offer a contribution to both predicting and accelerating early product adoption.     

Teachers' Professional Noticing

Teachers' instructional practice is pedagogically vulnerable when not anchored within detailed and comprehensive observation and understanding of students' immediate responses during instruction. Professional noticing ability, then, is central to, and integrated within, teachers' ability to provide instruction appropriately adapted to students' immediate needs. This article explicates a model of expert noticing for literacy instruction and relates this model to the characteristics of microadaptive teaching decisions. Characteristics, for example, that distinguish expert from less expert noticing during literacy instruction include detailed hypothesizing, breadth and depth of elaboration, observation of learners' metacognitive behavior, and identification of pivotal events. Teacher noticing ability is generally not related to years of experience, but can be learned through participation in sustained, multilevel professional development with an explicit focus on noticing ability. This complex learning integrates teachers' pedagogical and content knowledge with observation of student behaviors, and supports teachers' learning from practice.