Measuring Science Instructional Practice: A Survey Tool for the Age of NGSS

Ambitious efforts are taking place to implement a new vision for science education in the United States, in both Next Generation Science Standards (NGSS)-adopted states and those states creating their own, often related, standards. In-service and pre-service teacher educators are involved in supporting teacher shifts in practice toward the new standards. With these efforts, it will be important to document shifts in science instruction toward the goals of NGSS and broader science education reform. Survey instruments are often used to capture instructional practices; however, existing surveys primarily measure inquiry based on previous definitions and standards and with a few exceptions, disregard key instructional practices considered outside the scope of inquiry. A comprehensive survey and a clearly defined set of items do not exist. Moreover, items specific to the NGSS Science and Engineering practices have not yet been tested. To address this need, we developed and validated a Science Instructional Practices survey instrument that is appropriate for NGSS and other related science standards. Survey construction was based on a literature review establishing key areas of science instruction, followed by a systematic process for identifying and creating items. Instrument validity and reliability were then tested through a procedure that included cognitive interviews, expert review, exploratory and confirmatory factor analysis (using independent samples), and analysis of criterion validity. Based on these analyses, final subscales include: Instigating an Investigation, Data Collection and Analysis, Critique, Explanation and Argumentation, Modeling, Traditional Instruction, Prior Knowledge, Science Communication, and Discourse.     

The influence of shock during response prevention upon resistance to extinction of an avoidance response

A recent study found that avoidance extinction is equally facilitated by response prevention (blocking) whether the latter involves CS-alone or CS-shock presentations. An experiment was performed to determine whether this result was due to the use of a lengthy shock (5 sec) during response prevention. Five groups of rats were extinguished: (1) without prior blocking, (2) after blocking with CS only, (3) after blocking with a lengthy (5 sec) CS-contingent shock, (4) after blocking with a brief (.5 sec) CS-contingent shock, or (5) after blocking with a brief (.5 sec) shock only. The group blocked with the brief CS-contingent shock was substantially more resistant to extinction than the other four groups. The unblocked group and the group blocked with brief shock only required more trials to extinguish than the groups blocked with CS only or with lengthy CS-contingent shock, but did not differ from each other. The groups blocked with CS only or with lengthy CS-contingent shock also failed to differ from one another. The data support a significant role for Pavlovian conditioning processes in the effect of response prevention upon avoidance extinction.     

Understanding teacher instructional change: the case of integrating NGSS and stewardship in professional development

The environmental education (EE) field has encountered persistent challenges in fostering the integration of EE practices in public schools, a challenge that may be addressed through integration of EE with the Next Generation Science Standards (NGSS) in the United States. In addition to the potential for fostering EE, the integration of EE and NGSS may provide a unique set of conditions for understanding how and why teachers shift their practice to incorporate more EE in their classrooms. Using a mixed methodology research design, this study examines the outcomes and processes of a professional development institute that integrated NGSS and student-driven environmental stewardship. This study provides evidence that integrating NGSS Science and Engineering Practices with stewardship may help infuse EE into classrooms. The research also contributes to theoretical understanding of the processes by which professional development shapes teacher change within an organizational context. Specifically, teacher instructional change was predicated on a shift in their beliefs that stewardship was possible in a standards and accountability-based educational context. The requisite shift in beliefs came about through the expectations and supportive resources provided by the professional development, teacher observation of student engagement, and the justification NGSS integration provided for stewardship activities.     

Reflections on Equipping Candidates to Teach Literacy in Culturally Diverse Schools

Abstract

This essay reflects on ways to equip teacher candidates so they are not only prepared to answer tough questions, but are educated for the linguistic and literacy challenges of today’s classrooms. We recognize that with an ever-growing majority minority population, it is time to change the teacher preparation system, and to support current teachers and the preparation of future teachers for the field; these changes need to be soon and are imperative.     

Determinants of planarian aggregation behavior

Using a filter technique, five experiments examined the role of chemical and visual cues in recruiting individual planarians to established aggregations. The results indicated thatCura foremani depend upon a combination of chemical and visual cues whilePlanaria dactyligera depend almost entirely on chemical cues for aggregation formation.     

Faculty writing: Redirection and renewal

Faculty devote their lives to higher education because of an early commitment to intellectual pursuits. Often, their interests narrow over time, as a result of publishing pressure, which may result in faculty writing burnout. Few university programs support more senior faculty to continue their writing. These faculty should be encouraged to provide their informed perspective through the popular media of the cultural, political and scientific dilemmas facing the twenty-first century. Because of the dialogue, not only will faculty feel renewed, but energy will be provided for their other scholarly pursuits. Strategies for regeneration are easily incorporated into faculty development programs.     

The ups and downs of child care: Variations in child care quality and exposure across the early years

There is considerable policy interest in understanding the role of child care in children’s development. Yet little research has examined whether individual children experience changes in child care quality across their early years, and less has included children’s varying levels of exposure to care in analyses of child care trajectories. Using data from the NICHD Study of Early Child Care, this study seeks to fill these gaps by studying the non-maternal care experiences of children whose mothers work at some point during their early years. We find that few of these children experience continuously high-quality care or continuously low-quality care. Instead, many children experience changes in child care quality. Children from low socioeconomic status families are more likely to experience low-quality care than children who are never poor, but children who are never poor are more likely to have child care histories that include both low- and high-quality care arrangements. We discuss the implications of our findings for studies of selection into low-quality child care arrangements and the effects of child care quality on children’s development.     

THE STRUCTURE AND IMPLICATIONS OF CHILDREN'S ATTITUDES TO SCHOOL

ABSTRACT:  The paper reports a study of children's attitudes to school based on a questionnaire survey of 845 pupils in their first year of secondary school in England, together with interviews with a sample of the children. A clearly structured set of attitudes emerged from a factor analysis which showed a distinction between instrumental and affective aspects of attitudes but also dimensions within these, including a sense of teacher commitment and school as a difficult environment. Virtually all children had a strong sense of the importance of doing well at school. However, a substantial minority were not sure that they would stay on after 16. There were few differences between boys and girls or between children from different socio-economic backgrounds but children planning to leave at 16 enjoyed school less and were less sure that it had anything to offer them. There was an almost universal commitment to the value of education but, for a minority, an ambivalence about the experience and relevance of schooling for them.