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1.
The synthesis of this molecule was a landmark in organic synthesis. It involved the masterful control of shapes of molecules
to create 9 chiral centres with known absolute and relative configurations. The concepts of absolute and induced asymmetric
synthesis are here explained. 相似文献
2.
Michael A. Buhagiar Roger Murphy 《Assessment in Education: Principles, Policy & Practice》2008,15(2):169-182
This paper reports a study of the classroom assessment practices of 12 sixth form college mathematics teachers in Malta. It explores the extent to which these teachers are knowledgeable about their students’ learning of mathematics and the implications that this has for their classroom practices. It reveals that these teachers’ knowledge of their students’ understanding of certain mathematical concepts is fairly limited. It then goes on to discuss this phenomenon in terms of a process that can hinder rather than promote learning. The research illuminates the position of teachers who appear to lack certain detailed information about their students which, it can be argued, could inform more effective teaching strategies. The paper concludes by exploring possible implications for similar situations where learning could be enhanced by more effective classroom assessment strategies and their use to inform future teaching and learning activities. 相似文献
3.
This paper addresses the accumulating knowledge of prospective teachers of secondary school mathematics and their acquired
proficiency during the course “Psychological aspects of mathematics education,” in which we discussed theoretical models including
the intuitive rules theory. Participants’ performances are examined by means of an extensive report of two episodes, one during
the course and one afterwards. These episodes marked different stages in the prospective teachers’ analysis of their own and
of students’ solutions, which led me to conclude that exposing prospective teachers to the intuitive rules theory is important,
since their familiarity with the theory provided them with a tool to reflect on their own mathematical solutions (subject
matter knowledge; SMK), on others’ solutions, and on the tasks (pedagogical content knowledge; PCK). 相似文献
4.
Keith Skamp 《Environmental Education Research》2009,15(1):93-110
All eight teachers and their principal, at an Australian regional primary school in New South Wales (NSW) accredited for its ongoing ‘learnscape’ developments, were interviewed. This was to ascertain their perceptions about the role of learnscapes and their self‐reported use of such outdoor areas to assist in the achievement of their State’s syllabus and environmental education learning outcomes. Teachers at the school (6) and their principal were (re)interviewed a year later to determine if changes in perceptions and practice had occurred and why. This paper interprets narratives derived from the combined interviews of these latter teachers and their principal from an educational change perspective in order to gain insight into their level of use of learnscapes. Teachers’ learnscape and environmental education content and pedagogical knowledge, their focus on the consequences of learnscape use for student learning, and awareness of multiple learning outcomes, including social learning, when using learnscapes, were among interdependent change factors identified which may assist in understanding why teachers embraced learnscapes to different degrees. Consequent avenues for increasing the future use of learnscapes for syllabus and environmental purposes are suggested. 相似文献
5.
Li Ping Chang 《Children‘s Literature in Education》2011,42(2):132-147
Louise Erdrich is one of the most influential writers of the Native American Renaissance. Her contributions to the representation
of Native American history have been great, and her masterpieces of children’s literature have won her a prominent reputation.
This article explores the (re)location of the concept of home in Erdrich’s The Game of Silence and analyzes the novel’s historical context with reference to various discourses on space/place, including those by Native
Americans. Erdrich’s narration reconstructs a space for Native American culture, religion and tradition, and for the continued
survival of Native American people. She represents the silent history of her ancestors’ displacement to the West, as white
settlers encroached upon their beloved homeland. As Erdrich’s work so poignantly illustrates, for Native American people,
home is nowhere and anywhere. 相似文献
6.
Timothy M. Flynn 《Journal of Experimental Education》2013,81(2):46-51
A multiple-choice behavioral observation scale designed to be used by preschool teachers (N = 424) was factor analyzed to obtain factor coefficients. The four factors obtained were cognitive skills, self-control, relationship with achievement model, and dependency. The factor coefficients were then applied to the ratings of 153 preschool disadvantaged children by 33 teachers and 64 teacher aides. Three multi-trait, multi-rater matrices were analyzed using Campbell and Fiske’s convergent discriminant validation procedures. The analyses supported convergent and discriminant validity of three of the four traits. 相似文献
7.
Cofré Hernán Núñez Paola Santibáñez David Pavez José M. Valencia Martina Vergara Claudia 《Science & Education》2019,28(3-5):205-248
Science & Education - There is widespread agreement that an adequate understanding of the nature of science (NOS) is a critical component of scientific literacy and a major goal in science... 相似文献
8.
9.
Science & Education - Nature of science (NOS) is considered an important aspect of scientific literacy. Despite efforts in guiding school students to develop more adequate NOS views, little is... 相似文献
10.
《少年Pi的奇幻漂流》是一部奇幻冒险小说,于2001年出版之前被五家伦敦出版社拒绝。这是作者扬·马特尔的第二部小说,成为2002年布克奖获奖作品。以下是马特尔获奖之后与PBS NewsHour主持人SUAREZ的访谈对话,谈故事,谈人物,谈创作经历…… 相似文献
11.
Lawrence S. Wrightsman Jr. 《Journal of Experimental Education》2013,81(4):367-370
Monte Carlo methods were employed to evaluate the degree to which canonical function and structure coefficients may be differentially sensitive to sampling error. Sampling error influences were investigated across variations in variable and sample sizes, across variations in average within-set correlation sizes, and in across-set population correlation sizes. Sixty-four different research situations were investigated, and for each situation 1,000 random samples were drawn. Results suggest that both sets of coefficients are roughly equally influenced by sampling error, except perhaps when some intradomain correlation coefficients are quite large. Thus, the case for emphasizing interpretation of structure coefficients must be made on a psychometric basis rather than on the grounds that structure coefficients are less sensitive to sampling error influences, notwithstanding the positions previously taken by some theorists. 相似文献
12.
Kyeong Hah Roh 《Educational Studies in Mathematics》2010,73(3):263-279
This study explored students’ understanding of a logical structure in defining the limit of a sequence, focusing on the relationship
between ε and N. The subjects of this study were college students who had already encountered the concept of limit but did not have any experience
with rigorous proofs using the ε–N definition. This study suggested two statements, each of which is written by using a relationship between ε and N, similar to the ε–N definition. By analyzing the students’ responses to the validity of the statements as definitions of the limit of a sequence,
students’ understanding of such a relationship was classified into five major categories. This paper discusses some essential
components that students must conceptualize in order properly to understand the relationship between ε and N in defining the limit of a sequence. 相似文献
13.
《Teaching and Teacher Education》2001,17(3):321-331
This study was designed to examine the nature and accuracy of teachers’ judgments about students’ motivation related to mathematics. Seventeen fourth- through sixth-grade teachers and 100 of their students participated in this study. Teachers were asked to rate six target students’ motivation four times during the school year. At each of these times students also rated their own motivation. Teachers’ ratings were more stable over time and across mathematics topics and were less differentiated across motivation dimensions than were students’ ratings. The findings suggest that teachers need to pay careful attention to evidence related to children's motivation that might contradict their perceptions and therefore support more effective interventions. 相似文献
14.
Melissa Gross 《Children‘s Literature in Education》2007,38(2):115-126
Alice Miller’s work provides a theoretical framework to assess the effects of child abuse and its relationship to the development
of creativity, hatred, and violence in the novel Ender’s Game. Analysis focuses on the extent to which children are manipulated in order to meet the needs of adults, the presence of behaviors
such as the repression of feelings and memories, the idealization of perpetrators, blind obedience to authority, and the expression
of repressed feelings in destructive acts, and identification of a helping witness as predictors for the actions and outcomes
in this story.
相似文献
| Melissa GrossEmail: |
15.
《The Journal of educational research》2012,105(10):446-449
AbstractThe study, with 536 second-sixth graders as subjects, attempted to investigate the relationships between teacher and “idea”-teacher discrepancies (hereafter designated as discrepancies) and six dependent variables. Results of the study were summarized as: (a) high-school achievement scorers tended to manifest low discrepancies, and vice versa; (b) boys appeared to exhibit higher discrepancies than girls did; (c) those more socially acceptable children seemed to exhibit low discrepancies, and vice versa; (d) those children who indicated higher school attitude scores had a tendency to show low discrepancies, and vice versa; (e) those children who rated themselves high on aggressiveness were inclined to show high discrepancies, and vice versa; and (f) there was no statistically significant relationship between peer-report aggressiveness and such discrepancies. 相似文献
16.
Chinese homeroom teachers’ performance of professional school counselor activities was explored. A total of 109 homeroom teachers
in Beijing and Harbin, China reported their performance of 68 different school counseling activities as part of their regular
actions as a homeroom teacher. Results found that on average homeroom teachers performed a wide variety of counseling tasks
and together almost all tasks were performed by homeroom teachers. Further, participants reported frequently providing individual
counseling to students on a range of concerns. Findings in this study support calls for the continued development of school
counseling in China, hiring more school counselors, and additional training for homeroom teachers. Limitations, recommendations,
and avenues for future research are described. 相似文献
17.
Students’ judgments about “what counts” as mathematics in and out of school have important consequences for problem solving and transfer, yet our understanding of the source and nature of these judgments remains incomplete. Thirty-five sixth grade students participated in a study focused on what activities students judge as mathematical, and how they make their judgments. Students completed a photo sorting activity; took, viewed, and captioned their own photos of mathematics; viewed and commented on classmates’ photos; and participated in a small group discussion. Across multiple sources of data, findings showed that students attended to two major features of photos and activities when making judgments: surface cues present in the photos, such as numbers and money, and the possibility for mathematical action. Some students looked for the possibility of mathematics, while others asked if mathematics was necessary. Students also gave higher ratings to activities with which they had personal experience. The article concludes with possible implications for practice. 相似文献
18.
This article examines the historical fantasy world created by Joan Aiken in the eleven volumes of her Wolves of Willoughby Chase series. In particular it looks at her subversion of historical reality by the creation of an alternative yet recognisable representation of our own world, using a wide range of events, and the remoulding of aspects of language and geography. It also discusses her reasons for writing in this form and explores the character of Dido Twite as heroine and major raison dtre of the series.This revised version was published online in May 2005 with corrections to the article title. 相似文献
19.
This article examines Philip Reeve’s novel for children, Mortal Engines, and M.T. Anderson’s young adult novel, Feed, by assessing these dystopias as prototypical texts of what Ulrich Beck calls risk society. Through their visions of a fictional future, the two narratives explore the hazards created by contemporary techno-economic progress, predatory global politics and capitalist excesses of consumption. They implicitly pose the question: “In the absence of a happy ending for western civilisation, what kind of children can survive in dystopia?” 相似文献
20.
Evaluation of teaching in higher education has drawn much attention due to the need for greater accountability and improvement in student learning. Our review of literature on Student Evaluation of Teaching (SET) surveys suggests that considerable controversy and criticism have surrounded its use, fairness, and validity. Yet, many universities in Hong Kong are depending primarily on student feedback in SET surveys to provide evidence for their improvement of teaching and learning, and for their decisions made on teachers' pay-rise and tenure. If universities are to continue to use SET surveys as the main source of mechanism for measuring teaching effectiveness, teachers will have to understand and be aware of its purposes. But how much do we know about teachers' perceptions of teaching and learning and, consequently, their opinions of using SET surveys as the primary standardized evaluation mechanism of teaching for promotion and tenure and for teaching effectiveness? 相似文献