A Community College Instructor’s Reflective Journey Toward Developing Pedagogical Content Knowledge for Nature of Science in a Non-majors Undergraduate Biology Course     

Sarah J. Krajewski  Renee Schwartz 《Journal of Science Teacher Education》2014,25(5):543-566

Research supports an explicit-reflective approach to teaching about nature of science (NOS), but little is reported on teachers’ journeys as they attempt to integrate NOS into everyday lessons. This participatory action research paper reports the challenges and successes encountered by an in-service teacher, Sarah, implementing NOS for the first time throughout four units of a community college biology course (genetics, molecular biology, evolution, and ecology). Through the action research cycles of planning, implementing, and reflecting, Sarah identified areas of challenge and success. This paper reports emergent themes that assisted her in successfully embedding NOS within the science content. Data include weekly lesson plans and pre/post reflective journaling before and after each lesson of this lecture/lab combination class that met twice a week. This course was taught back to back semesters, and this study is based on the results of a year-long process. Developing pedagogical content knowledge (PCK) for NOS involves coming to understand the overlaps and connections between NOS, other science subject matter, pedagogical strategies, and student learning. Sarah found that through action research she was able to grow and assimilate her understanding of NOS within the biology content she was teaching. A shift in orientation toward teaching products of science to teaching science processes was a necessary shift for NOS pedagogical success. This process enabled Sarah’s development of PCK for NOS. As a practical example of putting research-based instructional recommendations into practice, this study may be very useful for other teachers who are learning to teach NOS.  相似文献   

Associations between sexually experienced adolescents' sources of information about sex and sexual risk outcomes     

Molly Secor-Turner  Renee E. Sieving  Marla E. Eisenberg  Carol Skay 《Sex education》2013,13(4):489-500

The objective of this study was to describe prevalent informal sources of information about sex and examine associations between informal sources of information about sex and sexual risk outcomes among sexually experienced adolescents. Work involved the secondary analysis of data from the Minnesota Student Survey, a statewide survey to monitor priority risk and protective health behaviors. The study sample included 22,828 sexually experienced adolescents aged 13–20 years. Multivariate logistic regression analyses examined associations between adolescents' informal sources of information about sex and three sexual risk outcomes. Peers and siblings were the most commonly reported source of information about sex. Ninth-graders who reported parents or parents plus peers/siblings as a source of information about sex had significantly lower odds of having multiple sex partners in the past year. Ninth-graders who reported any informal source of information about sex had significantly lower odds of unprotected intercourse at last sex. Ninth-graders and 12th-graders who reported any informal source of information about sex had significantly lower odds of lifetime pregnancy involvement. Findings suggest information about sex from people in adolescents' everyday lives has the potential to diminish the likelihood of involvement in sexual risk behaviors. To maximize effectiveness, formal sex education programs should engage informal sources of information about sex in adolescents' everyday lives.  相似文献   

Observed peer victimization during early elementary school: continuity, growth, and relation to risk for child antisocial and depressive behavior     

Snyder J  Brooker M  Patrick MR  Snyder A  Schrepferman L  Stoolmiller M 《Child development》2003,74(6):1881-1898

The rate at which 266 boys and girls ages 5 to 7 years old were victimized by peers was observed on multiple occasions in kindergarten and first grade. Individual differences in victimization were observed at kindergarten entry and in growth over the subsequent 2 years. Victimization increased for some children but decreased for others. Growth in victimization was reciprocally related to growth in teacher-reported antisocial and depressive behavior for boys. For girls, kindergarten victimization was related to growth in parent-reported antisocial behavior, teacher-reported depressive behavior to growth in victimization, and growth in victimization to parent-reported depression. At a short-term group level, antisocial behavior had a lagged suppressive effect on victimization for boys but a facilitating effect for girls.  相似文献   

如何看待考研     

Renee 《中国大学生就业》2002,(7):10-11

考研无疑是大学生们毕业时选择人数最多的道路之一,从这个实际情况来看,他最适合绝大多数同学.这是什么原因呢?我们在这里尝试综合一下,也许是画蛇添足,但也许能给低年级的同学们一点启发.  相似文献   

Infants' Reliance on a Social Criterion for Establishing Word-Object Relations   总被引：3，自引：0，他引：3  

Dare A. Baldwin  Ellen M. Markman  Brigitte Bill  Renee N. Desjardins  Jane M. Irwin  Glynnis Tidball 《Child development》1996,67(6):3135-3153

The language children hear presents them with a multitude of co-occurrences between words and things in the world, and they must repeatedly determine which among these manifold co-occurrences is relevant. Social factors—such as cues regarding the speaker's referential intent—might serve as one guide to whether word-object covariation should be registered. In 2 studies, infants (15–20 months and 18–20 months in Studies 1 and 2, respectively) heard novel labels at a time when they were investigating a single novel object; in one case the label was uttered by a speaker seated within the infant's view and displaying concurrent attention to the novel toy (coupled condition), whereas in the other case the label emanated from a speaker seated out of the infant's view (decoupled condition). In both studies, subsequent comprehension questions indicated that infants of 18–20 months registered a stable link between label and object in the coupled condition, but not in the decoupled condition, despite the fact that covariation between label and object was equivalent in the 2 conditions. Thus, by 18–20 months children are inclined to establish a mapping between word and object only when a speaker displays signs of referring to that object.  相似文献   

考研:名校比一般学校好考     

Renee 《中国大学生就业》2002,(7):24-26

在选择考研的学校时,考哪个学校是和考哪个专业一样重要的问题,考名校还是考一般的学校,考本校还是外校,这是个问题.我的观点是,还是考名校比较好.  相似文献   

Gender in plants     

Renee M. Borges 《Resonance》1998,3(4):64-71

Complex evolutionary forces determine whether plants are male, female or hermaphrodite throughout their lives or whether they switch from one sex to another. This article explores these often conflicting forces and seeks answers for sex change in plants.  相似文献   

Gender in plants     

Renee M. Borges 《Resonance》1998,3(11):30-39

What is the difference between plant sex and plant gender? Why does stress sometimes cause maleness and other times result in femaleness? Do plant hedge mating bets using sex change? This article addresses these and other evolutionary questions about plant gender.  相似文献   

Information needs and information-seeking behavior in developing countries: A review of the research     

Renee Dutta 《International Information and Library Review》2009,41(1):44-51

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The validity of reading comprehension rate: Reading speed,comprehension, and comprehension rates     

Christopher H. Skinner  Jacqueline L. Williams  Jennifer Ann Morrow  Andre D. Hale  Christine E. Neddenriep  Renee O. Hawkins 《Psychology in the schools》2009,46(10):1036-1047

This article describes a secondary analysis of a brief reading comprehension rate measure, percent comprehension questions correct per minute spent reading (%C/M). This measure includes reading speed (seconds to read) in the denominator and percentage of comprehension questions answered correctly in the numerator. Participants were 22 4th‐, 29 5th‐, and 37 10th‐grade students. Results showed that reading speed accounted for much of the variance in Broad Reading Cluster scores and subtest scores of the Woodcock–Johnson III Tests of Achievement across all grade levels. Converting reading speed to the rate measure %C/M increased Broad Reading Cluster variance accounted for in the 4th‐ and 5th‐grade sample, but decreased the Broad Reading Cluster variance accounted for in the 10th‐grade sample. Discussion focuses on the importance of reading speed and the failure to enhance validity of a brief rate measure in more skilled readers by incorporating a direct measure of comprehension. © 2009 Wiley Periodicals, Inc.  相似文献