The Development of Professional Learning Communities and Their Teacher Leaders: An Activity Systems Analysis

Professional learning communities can be effective vehicles for teacher learning and instructional improvement, partly because they help change professional culture. However, little is known about how these changes occur. We used activity systems analysis to investigate the development of professional learning communities and their teacher leaders (N = 9) based on interviews and observations over 2 years. Activity systems analysis enables researchers to understand change within complex qualitative data sets by finding systemic relations within the activity, specifying contradictions in the system, and explicating outcomes. The resulting activity system illuminates the transformation of a mostly private, autonomous, and egalitarian culture to one of nascent collaboration, reflection, and shared values, as well as teacher leaders’ development of agency.     

Contradictory Tendencies in Engineering Education

The progress of technology has resulted in substantial changes in the process of modem engineering education. Three domains of subjects constituting the curriculum can be distinguished in this process. With time, certain contradictions between this triad of domains have developed. These contradictions manifest themselves in both negative and positive ways. This paper considers some aspects of this confrontation and proposes some recommendations to minimize the negative effects in education and to strengthen the positive outcomes.

The gap between practice, as typified by design, and academe, as typified by the scientific approach, has grown too great. Closure will depend largely upon the willingness and ability of young academics to assimilate the industrial point of view and build bridges between the two cultures [1].     

Technical Communication Coaching: A Strategy for Instilling Reader Usability Assurance in Online Course Material Development

ABSTRACT

Online course material development requires much writing, often catching faculty by surprise because of either the sheer volume or the specialized role and function of writing in an online only and multimodal environment. technical and professional communication (TPC) faculty are uniquely suited to coach faculty in producing readable writing for online courses. This article explores the professional development strategies and coaching skills necessary for TPC instructors and/or practitioners to serve in this role in online course development training.     

An Approach to Improving Science Knowledge About Energy Balance and Nutrition Among Elementary- and Middle-School Students

Unhealthy diets, lack of fitness, and obesity are serious problems in the United States. The Centers for Disease Control, Surgeon General, and Department of Health and Human Services are calling for action to address these problems. Scientists and educators at Baylor College of Medicine and the National Space Biomedical Research Institute teamed to produce an instructional unit, “Food and Fitness,” and evaluated it with students in grades 3–7 in Houston, Texas. A field-test group (447 students) completed all unit activities under the guidance of their teachers. This group and a comparison group (343 students) completed pre and postassessments measuring knowledge of concepts covered in the unit. Outcomes indicate that the unit significantly increased students'' knowledge and awareness of science concepts related to energy in living systems, metabolism, nutrients, and diet. Pre-assessment results suggest that most students understand concepts related to calories in food, exercise and energy use, and matching food intake to energy use. Students'' prior knowledge was found to be much lower on topics related to healthy portion sizes, foods that supply the most energy, essential nutrients, what “diet” actually means, and the relationship between body size and basal metabolic rate.     

Excitatory and inhibitory effects of free reinforcers

Rats’ responding was maintained on a random-interval 1-min food schedule. In addition, non-contingent pellets were delivered, independently of the animals’ behavior, at either fixed intervals (Experiment 1) or at random intervals (Experiment 2). As the rate of delivery of the periodic and aperiodic free reinforcers increased, the rate of responding decreased. But these free reinforcers, in addition to having this inhibitory effect, had also a local excitatory effect upon responding: lever-pressing increased to a level above its mean rate following the delivery of a free food pellet. The time course of this behavioral aftereffect of free reinforcers, for both fixed and random intervals, was dependent upon the proportion of the interval between successive free food deliveries. The relation of these results to those obtained with response-contingent reinforcement, free punishment, and in schedule-induced phenomena is discussed.     

X Marks the Spot—Not: Pirate Treasure Maps in <Emphasis Type="Italic">Treasure Island</Emphasis> and <Emphasis Type="Italic">Käpt’n Sharky und das Geheimnis der Schatzinsel</Emphasis>

This article explores the functions of paratextual and intra-textual pirate treasure maps in works of literature for children and young adults. Based on an examination of how the indexical X that “marks the spot” operates as the focal point of the semiotic endeavours of treasure maps, the article outlines the fragile stance of maps between referentiality (thus kindling readers’ imagination) and the potential to disappoint reader expectations (since maps are never congruent with the territory they refer to). The discussion is exemplified by specific consideration of the treasure map from Robert Louis Stevenson’s Treasure Island (1883) and the map of the turtle island in the German children’s picturebook Käpt’n Sharky und das Geheimnis der Schatzinsel (2006), which are also seen as examples of treasure maps which play with the expectations of both readers and characters alike, all tied to the X found on any treasure map. The article ends with an analysis of the function of both maps and treasures in the context of open-ended reading games of imagination.     

Positioning as not‐understanding: The value of showing uncertainty for engaging in science

Not understanding is central to scientific work: what scientists do is learn about the natural world, which involves seeking out what they do not know. In classrooms, however, the position of not‐understanding is generally a liability; confusion is an unfortunate condition to resolve as quickly as possible, or to conceal. In this article, we argue that students' public displays of uncertainty or confusion can be pivotal contributions to the classroom dynamics in initiating and sustaining a class's science inquiry. We present this as a central finding from a cross‐case analysis of eight episodes of students' scientific engagement, drawing on literature on framing to show how participants positioned themselves as not‐understanding and how that was consequential for the class's scientific engagement. We show how participants enacted this positioning by asking questions or expressing uncertainty around a phenomenon or model. We then analyze how participants' displays of not‐understanding shaped the conceptual, epistemic, and social aspects of classroom activity. We present two cases in detail: one in which a student's positioning helped initiate the class's scientific engagement and another in which it helped sustain it. We argue that this work motivates considering how to help students learn to embrace and value the role of expressing one's confusion in science.     

Science Teachers’ Misconceptions in Science and Engineering Distinctions: Reflections on Modern Research Examples

The aim of this exploratory study was to learn about the misconceptions that may arise for elementary and high school science teachers in their reflections on science and engineering practice. Using readings and videos of real science and engineering work, teachers’ reflections were used to uncover the underpinnings of their understandings. This knowledge ultimately provides information about supporting professional development (PD) for science teachers’ knowledge of engineering. Six science teachers (two elementary and four high school teachers) participated in the study as part of an online PD experience. Cunningham and Carlsen’s (Journal of Science Teacher Education 25:197–210, 2014) relative emphases of science and engineering practices were used to frame the design of PD activities and the analyses of teachers’ views. Analyses suggest misconceptions within the eight practices of science and engineering from the US Next Generation Science Standards in four areas. These are that: (1) the nature of the practices in both science and engineering research is determined by the long-term implications of the research regardless of the nature of the immediate work, (2) engineering and science are hierarchical, (3) creativity is inappropriate, and (4) research outcomes cannot be processes. We discuss the nature of these understandings among participants and the implications for engineering education PD for science teachers.