Six teaching orientations of Holocaust educators as reflections of teaching perspectives and meaning making processes

This study explored processes of curricular reinterpretation made by teachers who teach about the Holocaust. We conducted holistic narrative analyses of in-depth interviews with 31 American Holocaust educators. Six teaching orientations were identified: passionate historical, mythologizing-transforming, social-contemporizing, empathic-personalizing, riveting-shocking, and pragmatic-socializing. We offer vignettes for each orientation and compare them to other teaching perspective typologies, highlighting the novelty and utility of the presented typology. The findings demonstrate how narrative identity, meaning-making processes and teaching perspectives interconnect and lead teachers to reinterpret the Holocaust in their teaching. These findings have implications for teaching complex and value-laden topics.     

Reinforcing the STEM pipeline in vocational-technical high schools: The effect of female teachers

Although secondary Vocational-Technical Education (VTE) is highly prevalent in low-income settings in the developing world, this sector remains understudied in the Economics of Education literature. Situated in the Chilean context, this study examines the effect of exposure to a female VTE teacher on STEM pipeline persistence from secondary to post-secondary level. We find that having at least one female teacher in secondary STEM-VTE programs increases overall enrollment in STEM higher education programs by 2.1 percentage points, primarily driven by women choosing postsecondary VTE diplomas in STEM fields. The effect of female VTE teachers in enrollment in these diplomas reaches 4.0 percentage points, equivalent to an 18% reduction in the observed gender gap. We argue that female VTE teachers, acting as role models, have the potential to mitigate the traditional barriers that young women encounter to persist in the STEM pipeline, thereby contributing to closing the STEM gender gap.     

Effect of project-based learning on high school students' state-mandated,standardized math and science exam performance

In a technologically driven society, math and science students in the United States are falling further and further behind their international counterparts, resulting in an influx of STEM focused, reformed K-12 schools, including schools focused on project-based learning (PBL). This article reports a study of the effectiveness of PBL on high school students' performance on state mandated standardized mathematics and science achievement measures. Manor New Tech High School is a nationally recognized model STEM school, with a diverse student population, where all instruction is delivered through PBL. Although there is ample research suggesting that PBL is advantageous for increasing STEM learning compared to conventional teaching approaches, there is a lack of studies randomly assigning students to receive PBL. Further, some of the effects observed for students attending project-based schools could be due to a self-selection bias for students or parents that choose such an alternative learning environment. This study addresses both of these concerns and found that students taught through PBL, as a group, matched performance of conventionally taught students on all science 11th grade and mathematics 9th, 10th, and 11th grade TAKS achievement measures and exceeded performance by a scale score increase of 133 for the 10th grade science TAKS measure by (B = 133.082, t = 3.102, p < .05). One possible explanation of the differences observed in this study could be the TAKS instrument used to capture student math and science achievement that interprets “real-life applications” of content differently between math and science questions. These results align with literature on the effects of PBL and deepen our understanding of these effects by providing a controlled study with random assignments to the PBL experience. Future research looking at the effect of PBL on achievement on the PISA could be beneficial in identifying benefits of PBL implementation in schools.     

Conversations with children: making sense of marginalization in primary school settings

This paper engages with the issue of marginalization, in relation to the notion of inclusive education, that might be experienced by children within primary school settings. The discussion draws on understandings gained through an ethnographic study that took place in one primary school in Cyprus, with 227 children enrolled (aged 5 years 8 months to 12 years) over the period of five months. Particular emphasis was given to the idea of listening to children in order to better understand notions of marginalization, and therefore of inclusive education. Hence children’s voices were at the centre of this study and, in particular, they played a significant role in the process of identifying pupils who were possibly experiencing marginalization in the particular school setting. A total of 31 children were identified as possibly experiencing marginalization. Through the process of carrying out the research and analysing the data, marginalization came to be conceptualized in four different ways within a primary school context: when a child is experiencing some kind of marginalization and this is recognized by almost everybody including himself/herself; when a child is feeling that he/she is experiencing marginalization, while most others do not recognize this; when a child is found in what appear to be marginalized situations but does not feel it, or does not view it as marginalization; and, finally, when a child is experiencing marginalization but does not admit it. It is argued that marginalization in school contexts is a complex, multifaceted process, and that educators should take this understanding into account in order to successfully include all children.     

Exploring identities to deepen understanding of urban high school students' sexual health decision‐making

Sexual health is a controversial science topic that has received little attention in the field of science education, despite its direct relevance to students' lives and communities. Moreover, research from other fields indicates that a great deal remains to be learned about how to make school learning about sexual health influence the real‐life choices of students. In order to provide a more nuanced understanding of young people's decision‐making, this study examines students' talk about sexual health decision‐making through the lens of identities. Qualitative, ethnographic research methods with twenty 12th grade students attending a New York City public school are used to illustrate how students take on multiple identities in relation to sexual health decision‐making. Further, the study illustrates how these identities are formed by various aspects of students' lives, such as school, family, relationships, and religion, and by societal discourses on topics such as gender, individual responsibility, and morality. The study argues that looking at sexual health decision‐making—and at decision‐making about other controversial science topics—as tied to students' identities provides a useful way for teachers and researchers to grasp the complexity of these decisions, as a step toward creating curriculum that influences them. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 47:742–762, 2010     

Leveraging the power of peer-led learning: investigating effects on STEM performance in urban high schools

The Peer Enabled Restructured Classroom (PERC) is an instructional innovation developed to address gaps in science, technology, engineering, and math (STEM) in urban high schools. The PERC model changes instruction from teacher led to peer led by bringing peer students into the classroom to lead small-group work. Our study sought to provide empirical evidence in support of the peer-led model as a means of improving STEM learning for tutored students in urban schools. We used propensity score matching to evaluate the innovation's impact on students’ achievement on standardized end-of-course tests in two 9th-grade courses – Integrated Algebra and Biology. Results suggest that by the 2nd year of implementation, enrolment in PERC Biology increased the likelihood of passing. Similar effects were not observed for PERC Integrated Algebra, but when comparing cohorts, we found that the 2nd year was twice as likely to pass as the 1st year. We discuss implications for programme improvement.     

Teaching energy in high school by making use of history and philosophy of science

How to improve students' understanding of energy transformation and conservation remains one of the main challenges of energy teaching. To address this challenge, we developed a new teaching strategy suited to high school based on history and philosophy of science (HPS). It involves five key ingredients: study and reproduction of Joule's paddle-wheel experiment, introduction of Rankine's definition, study of a historical text of Joule, use of an “ID card of energy,” and early introduction and multiple application of the principle of energy conservation. This strategy was built and implemented in the frame of a collaborative and iterative work involving researchers and teachers. We examined the effects of this HPS-based teaching strategy on students' understanding of energy. We used a quantitative method based on pre- and post-tests (N = 95/87) completed by a qualitative analysis using both video recordings of classroom activities and videos produced by students during one of the teaching sequences. The outcomes show that the teaching strategy had an overall positive impact on students' learning of energy: in particular, Joule's paddle-wheel experiment seems to favor their understanding of the notion of energy transformation, while the early introduction and multiple application of the conservation principle appears as a relevant option to facilitate its mastering. This study illustrates how HPS might actually be introduced in classrooms and brings to light its usefulness for building new science teaching strategies.     

The effectiveness of student team-achievement division (STAD) for teaching high school chemistry in the United Arab Emirates

Education in the United Arab Emirates (UAE) faces major problems which may hinder its future development. These include low achievement in science and a negative attitude toward science subjects, which have resulted in a high number of student dropouts from the science track in high school. It is believed among UAE educators that the main reason is the way science that has been taught in its schools. A solution to this problem depends on finding effective teaching methods, which maintain student achievement, improve students' attitude and provide opportunities to develop essential scientific skills. The effectiveness of Student Team-Achievement Division (STAD) for teaching science to high school classes in the UAE was investigated. The sample was selected randomly. A representative group of UAE high school students was chosen from the northern province, which includes urban areas, and from the eastern province, which includes rural areas. The study involved sixteen tenth grade classes. During the second semester of the academic year 1998/1999, three units in the chemistry curriculum were covered. This study was designed to investigate the effectiveness of STAD in teaching high school chemistry in the UAE and to find out which groups, gender, area, and ability benefitted most.     

Trajectories of self-perceived math ability,utility value and interest across middle school as predictors of high school math performance

Although many studies have documented developmental change in mathematics motivation, little is known about how these trends predict math performance. A sample of 288 participants from the United States reported their perceived math ability, math utility value and math interest in 5th, 7th and 9th grades. Latent growth curve models estimated developmental trajectories in each of these constructs. Mathematics interest and utility value decreased across time, but there was no significant change in self-perceived math ability. Slopes and intercepts of all mathematics motivation variables correlated with one another. Even when controlling for prior mathematics performance, students who self-reported high math ability in 5th grade had higher standardised test scores than their peers in high school five years later. Neither math utility value nor math interest intercepts or slopes predicted later performance. Understanding the predictors of math performance is important for supporting students’ success in science, technology, engineering and mathematics careers.     

关于加强中学德育工作的若干思考——中学德育工作的新视角：德育生活化

加强中学德育建设关乎国家的前途和民族的命运,关乎学生良好品德的形成。当前中学德育存在着学生拒绝、排斥接受道德教育的倾向,学生普遍存在心理问题,且很难较好地处理现实生活中的道德冲突问题。德育生活化为中学德育建设提供了新视角。实现德育生活化的原则是:(1)重视中学生作为德育主体的要求;(2)适合中学生的心理特点;(3)实现德育主体充分参与。为此,应突出德育的“生活”特性,丰富德育内容;注重德育的“实践”特性; 改革德育方式;构建学校、家庭与社会共同参与的德育体系。     

Engagement and knowledge building in an afterschool STEM Club: analyzing youth and facilitator posting behavior on a social networking site

Social networking sites (SNSs) are popular technologies used frequently among youth for recreational purposes. Increasing attention has been paid to the use of SNSs in educational settings as a way to engage youth interest and encourage academically productive discussion. Potential affordances of using SNSs for education include knowledge building, collaborative communities, and the ability to document and share processes and designs. In this study, the SNS, Edmodo, is examined as an educational tool used with Studio STEM. Results indicated that youth appropriated Edmodo to exhibit engagement and articulate knowledge through reciting facts, acknowledging learning, and documenting progress with the guidance of instructors and facilitators. Based on results, we suggest that efforts to include SNSs in integrative science, technology, engineering, and mathematics programming for youth prioritize consistent monitoring and guidance by supportive and more knowledgeable others as this serves to develop community and encourage youth engagement.     

低聚壳聚糖的制备及应用

不同分子量的壳聚糖具有不同功效 ,低分子量壳聚糖的生理活性与其化学结构紧密相关。本文介绍了壳聚糖的物理、化学、生物降解方法以及低聚壳聚糖在保健食品、医药领域及化妆品等方面的应用     

The role of non-formal contexts in teacher education for STEM: the case of horno3 science and technology interactive centre

Abstract

Teacher education can benefit directly from experiences in non-formal settings. This article presents a research study with elementary teachers who were teaching in public schools in the state of Nuevo León, México, and participated in a STEM Continuous Professional Development (CPD) workshop. The workshop provided a platform for teachers to interact with scientists and disseminators of science, allowing the appropriation of scientific knowledge applied to everyday activities and settings. Participants improved the quality of their teaching practices in classrooms and gained a new understanding of STEM subjects, enabling them to promote inspiring learning experiences with their students, where dialogue, experimentation and elucidation became an important part of their lessons. The study was carried out using ethnographic tools for analysing recorded videos, 15 sets of field notes, and 49 questionnaires. The sequential analysis of talk and gestures in their participation in the CPD workshop demonstrated high levels of involvement, creativity, and collaborative solution of STEM problems.     

高中生物实验员的职能与素质的思考

实施高中生物新课程教学,贯彻生物新课程理念,对培养学生创新精神和探究能力提出更高的要求．生命科学是实验科学,因此对生物实验员的职能及素质也提出了新的要求．结合长期实验室工作实践,对新时期高中生物实验员的基本职能及基本素质进行思考,并对提高实验员基本素质的方法与途径进行了探讨．     

对中学政治创新教育的尝试与思考

创新是一个国家兴旺发达的不竭动力 ,培养创新人才 ,也是中学政治教师的使命。为此 ,中学政治教师在教学中应做到三点 :切实转变教育观念 ,树立创新教育思想 ;积极汲取新知识 ,大胆运用现代化教学手段 ;组织丰富多彩的活动 ,营造创造思维的空间     

基于地理信息系统的信息技术与中学地理教育有机整合

文章通过对地理信息系统在中学地理教育中应用现状的分析,提出了地理信息系统在中学地理教育中的应用必要性及优势,并举例分析与中学地理教育整合的途径。在实际教学对比中分析传统教学和GIS教学的优劣势。     

网络文化对高校学生思想教育工作的影响及对策

网络化这一新型的化现象，正像一把双刃剑，对正处于人生观和价值观形成期的青少年来说，有着正反两方面的影响。如何正确引导他们趋利避害，利用好网络这一巨大资源，是一项长期而艰巨的任务。本就网络环境下高校学生思想教育工作面临的严峻挑战，提出了一些应对措施。     

The effects of prior informal science and math experiences on undergraduate STEM identity

ABSTRACT

Background

Recent reports have noted a need for increasing both the recruitment and retention of young people into the STEM disciplines. While many studies have reported on the benefits of classroom reform in formal education environments, less is known about the role of informal education programs in young people’s academic aspirations, interest and competence in science and math domains.