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Abstract

To investigate the likelihood that explicit instruction in text summarization is being provided in classrooms, an "ideal lesson" method was used. Twelve experienced K-12 teachers were asked to devise summarization lessons appropriate to their learners and course content, to deliver the lessons, and to audiotape them. Lessons were transcribed, and instances of mentioning of summarization rules were coded. Only two teachers in the sample group discussed more than one of the five summarization rules assessed. The other teachers provided instruction that emphasized words and facts, despite their having been prompted to "assist students in improving text summaries." Staff development possibilities are discussed.  相似文献   

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Although electromagnetism is an important component of upper secondary school physics syllabuses in many countries, there has been relatively little research on students’ understanding of the topic. A written test consisting of 16 diagnostic questions was developed and used to survey the understanding of electromagnetism of upper secondary school students in Turkey (n = 120) and England (n = 152). A separate test consisting of 10 questions on the visualization of spatial rotation was used to investigate the hypothesis that students’ ability to visualize three‐dimensional situations from two‐dimensional representations might influence learning of electromagnetism. Many students’ responses showed misunderstandings and inconsistencies that suggested they did not have a coherent framework of ideas about electromagnetism. Common errors included confusing electric and magnetic field effects, seeing field lines as indicating a “flow”, using cause–effect reasoning in situations where it does not apply, and dealing with effects associated with the rate of change of a variable. Performance on the spatial rotation test was, however, only weakly correlated with performance on the electromagnetism questions. The findings suggest the need to develop teaching strategies that help students to visualize magnetic field patterns and effects, and assist them in integrating ideas into a more coherent framework.  相似文献   

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Basic phylogenetics and associated “tree thinking” are often minimized or excluded in formal school curricula. Informal settings provide an opportunity to extend the K–12 school curriculum, introducing learners to new ideas, piquing interest in science, and fostering scientific literacy. Similarly, university researchers participating in science, technology, engineering, and mathematics (STEM) outreach activities increase awareness of college and career options and highlight interdisciplinary fields of science research and augment the science curriculum. To aid in this effort, we designed a 6-h module in which students utilized 12 flowering plant species to generate morphological and molecular phylogenies using biological techniques and bioinformatics tools. The phylogenetics module was implemented with 83 high school students during a weeklong university STEM immersion program and aimed to increase student understanding of phylogenetics and coevolution of plants and pollinators. Student response reflected positive engagement and learning gains as evidenced through content assessments, program evaluation surveys, and program artifacts. We present the results of the first year of implementation and discuss modifications for future use in our immersion programs as well as in multiple course settings at the high school and undergraduate levels.
Just as beginning students in geography need to be taught how to read maps, so beginning students in biology should be taught how to read trees and to understand what trees communicate. O’Hara (1997 , p. 327)
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Little research in the field of Mathematics Education is directed towards emotions of students beyond their emotions in problem-solving. In particular, the daily emotions of students in a mathematics class have been sparsely studied in the field of mathematics education. In order to fill this gap, this qualitative research aims to identify high school students’ emotional experiences in the mathematics classroom and identify the appraisal structures that support such emotional experiences. Focus group interviews were carried out until theoretical saturation of the data was achieved (N = 53 in nine focus groups interviews). Data analysis is based on the theory of cognitive structure of emotions, which specifies eliciting situations for each emotion and the variables that affect intensity. The emotional experiences in this structure are as follows: satisfaction, disappointment, hope, fear, joy, distress, boredom, interest, pride, reproach, self-reproach, like and dislike. These results show that the emotional experiences of students are based on their appraisals of events, objects and agents in terms of a structure of goals.  相似文献   

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Evolution is an important and sometimes controversial component of high school biology. In this study, we used a mixed methods approach to explore students’ evolution acceptance and views of evolution teaching and learning. Students explained their acceptance and rejection of evolution in terms of evidence and conflicts with religion and authority. Students largely supported the teaching of evolution and offered several reasons for its inclusion in high school biology. Students also offered several suggestions for improving evolution instruction. Evolution acceptors’ and rejecters’ views of evolution teaching and learning differed in a number of respects, and these differences may be explained using border crossing as a theoretical lens. Relevant implications for evolution instruction are discussed.  相似文献   

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Although the study of epistemic beliefs has received growing interest in the past decades, this research tends to focus on high school and undergraduate students, and does not address beliefs about information and truth, concepts that have been regarded as critical for learners in 21st-century educational contexts. In this study, the authors examined 87 elementary and middle school students’ beliefs about the definitions of and relations among knowledge, information, and truth through the use of a graphical and justification task, and addressed the consistency of beliefs across contexts and domains. Results indicated that students tended to regard knowledge, information, and truth as interrelated, and the majority of students described their beliefs as consistent across contexts and domains.  相似文献   

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This mixed methods investigation specifically examined Latino high school adolescents’ perceptions of teacher behaviors that demonstrate caring. A chi-square test was conducted to analyze the frequency of responses, and focus group interviews were conducted to expand on the results. The data indicated that although Latino male students were as likely to perceive the same behaviors Latina female students perceived as important or very important, a higher percentage of female students rated the same items as important. This investigation situates Latino high school adolescents’ voices as a pivotal agent to inform about the critical nature of caring for all students.  相似文献   

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This study focussed on how secondary school students construct and use mathematical models as conceptual tools when solving word problems. The participants were 511 secondary-school students who were in the final year of compulsory education (15–16 years old). Four levels of the development of constructing and using mathematical models were identified using a constant-comparative methodology to analyse the student’s problem-solving processes. Identifying the general in the particular and using the particular to endow the general with meaning were the key elements employed by students in the processes of construction and use of models in the different situations. In addition, attention was paid to the difficulties that students had in using their mathematical knowledge to solve these situations. Finally, implications are provided for drawing upon student’s use of mathematical models as conceptual tools to support the development of mathematical competence from socio-cultural perspectives of learning.  相似文献   

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In this study, 120 tenth-grade students from 8 schools were examined to determine the extent of their ability to perceive the human body as a system after completing the first stage in their biology curriculum - “The human body, emphasizing homeostasis”. The students’ systems thinking was analyzed according to the STH thinking model, which roughly divides it into three main levels that are arranged “pyramid” style, in an ascending order of difficulty: 1. Analysis of system components—the ability to identify the components and processes existing in the human body system; 2. Synthesis of system components—ability to identify dynamic relations within the system; 3. Implementation—ability to generalize and identify patterns in the system, and to identify its hidden dimensions. The students in this study proved largely incapable of achieving systems thinking beyond the primary STH level of identifying components. An overwhelming majority if their responses corresponded to this level of the STH model, further indicating a pronounced favoring of structure over process, and of larger, macro elements over microscopic ones.  相似文献   

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This study is among the first to use a large-scale dataset to better understand the driving forces behind the large outflow of Chinese international students. Based on data collected from 3,001 students at 18 high schools located in the three cities of Beijing, Shenzhen and Chengdu, this paper highlights the importance of students’ academic preparation and their families’ financial capability. It shows that sociocultural factors such as Experiencing Another Culture and Gaining Global Perspective play a significant role, but are often understudied in the case of Chinese students. In addition, the disadvantaged social strata tend to be influenced more by the pushing force of low- quality education in China, and deterred by the high cost of studying overseas, whereas the advantaged social strata tend to be influenced more by the pulling force of higher-quality education overseas and the pulling force within China such as relatively privileged lives.  相似文献   

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This study aimed to investigate the effects of inquiry-based laboratory activities on high school students’ understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental (N?=?30) and control groups (N?=?32). The experimental group was taught using inquiry-based laboratory activities developed by the researchers and the control group was instructed using traditional laboratory activities. The results of the study indicated that instruction based on inquiry-based laboratory activities caused a significantly better acquisition of scientific concepts related to electrochemistry, and produced significantly higher positive attitudes towards chemistry and laboratory. In the light of the findings, it is suggested that inquiry-based laboratory activities should be developed and applied to promote students’ understanding in chemistry subjects and to improve their positive attitudes.  相似文献   

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The present study used focus group data to explore students’ perceptions of the culture of their upper-middle-class high school. Although students described a high-pressure school with negative physical and psychological consequences, they valued the social and educational advantages this context conferred. They also simultaneously faulted and appreciated parents’ efforts to maintain the school's competitive climate and status. The discussion addresses how stakeholders work to sustain a culture of privilege, despite costs entailed.  相似文献   

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Many Iraqi refugee students in the United States suffer from posttraumatic stress disorder (PTSD) as well as acculturation stresses. These stresses often create challenges for their integration into U.S. schools. The project explored risk factors such as the length of educational gaps in transit, PTSD, and separation and marginalization acculturation, as well as protective factors such as resilience, self-esteem, and integration and assimilation. We conducted bivariate correlations and multiple regression to examine the relationship between factors and predicting school adjustment using variables among 100 Iraqi refugee high school students in the Detroit area. The results showed that the educational gaps (negatively), and assimilation and resilience (positively), are the strongest predictors for school adjustment. PTSD incurred by Iraqis as a result of events experienced before and during their migration from Iraq are related to their self-esteem and separation acculturation, while educational gaps are related to their marginalization as well as to their integration.  相似文献   

17.
The concept of the atom is one of the building blocks of science education. Although the concept is a foundation for students?? subsequent learning experiences, it is difficult for students to comprehend because of common misconceptions and its abstractness. The purpose of this study is to examine junior high school students?? (ages 12?C13) ideas about the shape and size of the atom and the evolution of these ideas over 2?years. The study??s sample size was 126 students, including 76 sixth-grade and 50 seventh-grade students. The educational curriculum and relevant literature guided the development of a questionnaire that consisted of three open-ended questions intended to determine students?? knowledge of the structure and physical properties of the atom. After administering the questionnaire, collected data were analysed qualitatively. The study shows that students had difficulty developing a mental image of the atom, and contrary to the conclusions of other studies, students demonstrated a preference for working with complex and abstract models.  相似文献   

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Research in Science Education - Classroom dialogues have special educational value because they allow students to engage critically but constructively with each other’s ideas, solve...  相似文献   

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Students in Shanghai ranked at the top in mathematics on the past two assessments of the Program for International Student Assessment (PISA). However, even though Asian students in general, and Chinese students in particular, ranked at the top in mathematics, we know little about Shanghai students’ subjective well-being (SWB). This paper reports two studies that investigated the SWB of elementary and middle school students in Shanghai, as well as their mathematics performance. It is found that the mean scores of elementary school students on all scales of SWB are significantly higher than those of middle school students, representing a large drop for students when moving from elementary to middle school. Furthermore, students’ mathematics performance is moderately correlated with their SWB. And for Grade 6, students’ SWB affects their mathematics performance, especially from academic self-concept, attentiveness in the classroom, and relationship with teachers.  相似文献   

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This article,first introduces the terms of implicit knowledge(IK),explicit knowledge(EK) and their distinctions in the process of English language learning,then advocates interactive English instruction in high schools,aiming at improving the learners' communicative competence.It provides an instruction design,which lays emphasis on the conversion of the EK into IK by practicing the former orally so as to interactively internalize the latter,thus,facilitating the learners' language communicative competence.  相似文献   

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