From organelle to protein gel: a 6-wk laboratory project on flagellar proteins   总被引：1，自引：1，他引：0  

Mitchell BF  Graziano MR 《CBE life sciences education》2006,5(3):239-246

Research suggests that undergraduate students learn more from lab experiences that involve longer-term projects. We have developed a one-semester laboratory sequence aimed at sophomore-level undergraduates. In designing this curriculum, we focused on several educational objectives: 1) giving students a feel for the scientific research process, 2) introducing them to commonly used lab techniques, and 3) building skills in both data analysis and scientific writing. Over the course of the semester, students carry out two project-based lab experiences and write two substantial lab reports modeled on primary literature. Student assessment data indicate that this lab curriculum achieved these objectives. This article describes the first of these projects, which uses the biflagellate alga Chlamydomonas reinhardtii to introduce students to the study of flagellar motility, protein synthesis, microtubule polymerization, organelle assembly, and protein isolation and characterization.  相似文献   

From abbey to archive: managing texts and records in early modern England     

Nicholas Popper 《Archival Science》2010,10(3):249-266

This article investigates the long-term transformations in England’s documentary storage regime wrought by the Reformation. Henry VIII’s Dissolution of the Monasteries famously resulted in the dispersal and destruction of many medieval texts and records, but he and his successors sponsored efforts to retrieve lost materials, which they then used in the formation of ecclesiastical policy. Elizabethan counselors expanded the scope of this project, applying their expertise in gathering records to secular issues and assiduously preserving their own documents. During James I’s reign, the Earl of Salisbury’s patronage gave new authority to the State Paper Office, encouraging the consolidation of a centralizing archive that integrated earlier methods of collection, preservation, and indexing in its operation and construction. The article thus offers an analytic trajectory tying the practices of Reformation to the development of expanding national archives in the seventeenth century.  相似文献   

Solomon Islands school leaders readiness for inclusive education     

Beth A. Ferri 《International Journal of Inclusive Education》2013,17(8):863-880

In this paper, I critically examine the discourse surrounding response to intervention (RTI), a US-based education reform that has garnered a considerable amount of attention (as well as controversy) in a very short amount of time. A multi-pronged reform effort, RTI is a tiered approach to delivering instructional intervention to students at risk, an on-going and systematic model of monitoring student performance, as well as an alternative to the ability/achievement discrepancy model for identifying learning disabilities. In this paper, I argue, however, that RTI is not so much a reform but a tactic, aimed at returning to the status quo of segregated special education and reinvigorating many of the foundational assumptions of traditional special education practice.  相似文献   

Self-Initiated Learning Activities of Experienced Public School Teachers: Methods,sources, and relevant organizational influences     

Margaret C. Lohman  Nicholas H. Woolf 《Teachers and Teaching》2013,19(1):59-74

The self-initiated learning activities of experienced public school teachers are examined in this study. Twenty-two experienced teachers were interviewed to develop a greater understanding of the types of self-initiated learning activities in which they engage and the organizational characteristics that influence their participation in those activities. Analysis of the data showed that experienced teachers engaged in three types of self-initiated learning activities: knowledge exchanging, experimenting, and environmental scanning. Participation in these activities was influenced by the availability of resources, physical layout, and level of centralization in their schools. Implications of these findings for theory, practice, and future research in teacher learning and development are discussed.  相似文献   

Identifying Factors that Influence the Successful Transition of Criminal Justice Transfer Students     

Jennifer L. Hartman  Beth Bjerregaard  Vivian B. Lord 《Journal of Criminal Justice Education》2013,24(2):173-193

Higher educational institutions place a priority on the retention and timely graduation of students. Previous literature has identified transfer students to have unique concerns and that these concerns vary by major. While previous retention research has reported factors that influence students’ decision to remain in college, many of these studies treated transfer status as a homogenous group. The university in this study enrolls a high percentage of transfer students, and a large percentage of these transfers students enroll in Criminal Justice classes and become Criminal Justice majors. To determine if there are unique risk factors among Criminal Justice transfer students, this study uses multiple measures of transfer status to identify factors that might impact a students’ (1) university involvement, (2) GPA, (3) satisfaction with and sense of belonging to their university and (4) thereby influence their decision to remain in school. The proposition that transfer students as compared to native (nontransfer) students differ on how they face university challenges was also examined. While several variables were found to be important to students’ adjustment to the University, transfer status does not appear to be significant risk factor. Implications of the results are discussed.  相似文献   

Profiles in Change: An Alternative Look at the Marshall Hypotheses∗     

John K. Cochran  Beth Sanders  Mitchell B. Chamlin 《Journal of Criminal Justice Education》2013,24(2):205-226

U.S. Supreme Court Justice Thurgood Marshall once argued that informed opinion would oppose the death penalty for all but those who support it for retributive reasons. We examine the validity of these claims with data from a series of one‐group pre‐test–post‐test designs which stem from a formalized learning outcomes assessment for several courses on the death penalty. Results show solid, but imperfect, support for these claims. The analysis then proceeds by profiling those who changed their opinions consistent with these claims, those who did not change their opinions, and those whose opinions changed in a manner opposite to these claims.  相似文献   

Evaluating the Graduation Gap: Interventions Designed to Enhance Upper-level Student Success and Commitment     

Vivian B. Lord  Beth Bjerregaard  Jennifer L. Hartman 《Journal of Criminal Justice Education》2013,24(2):153-174

Over the past several decades, there has been a wealth of research identifying factors and conditions of persistence toward graduation for first-year students and more recently transfer students. While previous research recognizes these critical periods, some recent literature suggests that students may face a similar transitional period later in their academic careers as they advance into their major areas of study. To date, there has been a dearth of information exploring upper-level students' success and commitment to graduation. Exploring this later transition might provide a critical link to understanding the graduation gap between those students who persist to graduation and those who drop out. The purpose of this research was to review the intervention programs proscribed by the literature, design an intervention program, and examine the impact of the program on criminal justice students during this advanced transitional phase of their college careers. It examined the direct and indirect effects of the intervention program on both retention and the antecedents of successful retention while controlling for other relevant influences identified in the literature. The results indicated that the intervention had small, but significant positive direct and indirect effects on academic integration, commitment to the university, and graduating in a timely fashion. Policy implications are discussed.  相似文献   

Unequal under law: race in the war on drugs     

O. Nicholas Robertson 《Journal of Criminal Justice Education》2013,24(4):602-606

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“The Coat Traps All Your Body Heat”: Heterogeneity as Fundamental to Learning     

Ann S. Rosebery  Mark Ogonowski  Mary DiSchino  Beth Warren 《学习科学杂志》2013,22(3):322-357

This article explores heterogeneity as fundamental to learning. Inspired by Bakhtin's notion of heteroglossia, a design team consisting of an experienced classroom teacher and 2 researchers investigated how a class of 3rd and 4th graders came to understand disciplinary points of view on heat, heat transfer, and the particulate nature of matter. Through a series of planned and unplanned encounters, official versions of the Second Law of Thermodynamics and the particulate view of matter were juxtaposed with varied domains of experience of heat transfer and phase change in water. We analyze the children's discourse to examine how they populated these phenomena with meaning and what they learned in the process. We conclude by describing key principles and a conundrum that emerged from this research.  相似文献   

Estimating the Effect on Grades of Using Multiple-Choice Versus Constructive-Response Questions: Data From the Classroom     

Stephen Hickson  W. Robert Reed  Nicholas Sander 《Educational Assessment》2013,18(4):200-213

This study investigates the degree to which grades based solely on constructed-response (CR) questions differ from grades based solely on multiple-choice (MC) questions. If CR questions are to justify their higher costs, they should produce different grade outcomes than MC questions. We use a data set composed of thousands of observations on individual students in introductory economics classes at a large public university. We note that the instructors of these classes made conscientious efforts to write CR questions that assessed higher levels of learning (Bloom, 1956 Bloom, B. S. 1956. Taxonomy of educational objectives: The classification of educational goals, handbook 1: Cognitive domain. New York: McKay..  [Google Scholar]). Despite this, we find relatively little difference in grade outcomes. Our analysis suggests that switching from an all-CR assessment to an all-MC assessment would produce grade variations that are similar to the differences that are observed for students across different tests. Although other studies have focused on test scores, frequently AP test scores, our study is the first to focus attention on university grades. We hope that our inability to identify substantial benefits to CR questions in terms of grades will stimulate further research to identify substantive benefits from using the more costly CR questions.  相似文献