Stomata: Versatile Sensory Devices but Difficult Experimental Subjects

This study examined what worldviews are present among Dutch students and teachers and how the students cope with scientific knowledge acquired in the biology classroom. Furthermore, we investigated what learning and teaching strategies teachers adopt when they teach about evolution and worldviews. For this survey, 10 schools for higher general secondary education or pre-university level were selected. The data showed that most teachers did not have an articulated learning and teaching strategy. Controversial topics and discussions with students about their own worldviews were ignored in the classroom. Furthermore, the data revealed that students and teachers have a large variety of different worldviews. Some students acknowledged having difficulties coping with the knowledge gained from the classroom, because it contradicted their own worldviews. These results support our hypothesis that there is need for an explicit learning and teaching strategy that supports both teachers and students to teach and learn about evolution in multiple contexts.     

Investigating high school students' conceptualizations of the biological basis of learning

Students go to school to learn. How much, however, do students understand about the biological basis of this everyday process? Blackwell et al. (1) demonstrated a correlation between education about learning and academic achievement. Yet there are few studies investigating high school students' conceptions of learning. In this mixed-methods research study, written assessments were administered to 339 high school students in an urban school district after they completed their required biology education, and videotaped interviews were conducted with 15 students. The results indicated that the majority of students know little about the biological basis of learning, even with prompting, and they recall having learned little about it in school. Students appear to believe that people control their own ability to learn, and some have developed personal hypotheses to describe the learning process. On written assessments, 75% of participants demonstrated a nonbiological framework for learning, and, during interviews, 67% of participants revealed misconceptions about the biological basis of learning. Sample quotes of these interviews are included in this report, and the implications of these findings are discussed.     

Teaching skeletal muscle adaptations to aerobic exercise using an American Physiological Society classic paper by Dr. Philip Gollnick and colleagues

The use of primary research in the classroom enhances the critical thinking abilities of students. The present article describes a strategy for using the American Physiological Society classic paper "Enzyme activity and fiber composition in skeletal muscle of untrained and trained men" by Dr. Philip D. Gollnick and colleagues to enhance the students' ability to understand research, increase their knowledge of the adaptations to exercise, and learn computer skills in data analysis and presentation. By having students read, study, prepare graphs, and discuss the data from a classic paper, they gain an improved understanding of the factors that influence aerobic exercise ability. This study is especially useful for illuminating the exercise-specific differences in bioenergetic enzymes, muscle fiber type, and fitness characteristics that exist between untrained and trained individuals.     

Navigating Contradictory Communities of Practice in Learning to Teach for Social Justice

In this article, I explore the contradictions that four new teachers experienced as their commitments to social justice collide with urban school culture. Framed within Jean Lave and Etienne Wenger's (1999) theory of situated learning and development concepts of identity, practice, and relationships illustrate how teachers' ideals are challenged as socializing features of two communities of practice—the universities and schools—intersect in new teachers' development. This research contributes empirical evidence of the application of critical multicultural teacher preparation into practice, a cultural representation of how educational inequities are reproduced or disrupted in the situated contexts of urban schools, an application of Lave and Wenger's theory of Legitimate Peripheral Participation that incorporates formal and informal education across multiple activity settings, and a call for collaborative communities of practice that support teachers' situated learning in creating transformative practices.     

Using Web‐Based Technology to Bring Hands‐On Urban Material Flow Analysis to the Classroom

The main objective of this article is to introduce an open‐source, online software tool called OMAT as a teaching tool for performing economy wide‐material flow analysis (EW‐MFA) at urban or regional level in industrial ecology curricula. To that intent, we present a classroom and project activity that was developed for a masters‐level industrial ecology course offered by the Autonomous University of Barcelona. Insights are provided with regards to the outcome of the classroom exercise as well as lessons learned from both an academic and a software development point of view. The OMAT software provides users with a specialized tool to enter and process MFA data in a simple, intuitive way. The usefulness of OMAT as a teaching tool was tested by engaging students in a classroom activity that entailed using OMAT as a tool to perform an EW‐MFA applied to the Metropolitan Area of Barcelona for the years 2005‐2011. The aim of this exercise was to teach students specific skills required in performing an EW‐MFA, not through theory classes, but hands‐on through a learn‐as‐you‐go approach. The exercise not only equipped the students with knowledge about MFA, but also introduced them to solving problems as a team, meeting project deadlines, and communicating effectively with colleagues from different disciplines and backgrounds. Even though there is room for further improvements, this exercise showed that OMAT provided a useful addition to traditional methods that allowed students to get a more practical and thorough understanding of the MFA methodology.     

Examining Students’ Perception of Classroom Openness as a Predictor of Civic Knowledge: A Cross-National Analysis of 38 Countries

Civic knowledge is critical to interpreting various policy and candidate issues that are necessary to participating in certain political activities, such as voting in elections or attending public demonstrations. Various studies have examined students’ perceptions of classroom openness, which reflects perceived levels of political discussion supported by peers in the classrooms, to understand how this measure relates to students’ civic behaviors. This study analyzes data from the 2009 International Civic and Citizenship Education Study, in which approximately 134,000 students were sampled from 38 countries across Europe, Asia, and Latin America. Results from three-level hierarchal linear modeling suggest that students’ perceptions of classroom openness are strongly related to their civic knowledge scores. Further analyses indicate that the relationship strength between these two measures do not vary across students from different socioeconomic backgrounds. These findings reaffirm the importance of curricular approaches that emphasize political discussions in classrooms to prepare students for active citizenship.     

??Are Humans Evolving??? A Classroom Discussion to Change Student Misconceptions Regarding Natural Selection

Natural selection is an important mechanism in the unifying biological theory of evolution, but many undergraduate students struggle to learn this concept. Students enter introductory biology courses with predictable misconceptions about natural selection, and traditional teaching methods, such as lecturing, are unlikely to dispel these misconceptions. Instead, students are more likely to learn natural selection when they are engaged in instructional activities specifically designed to change misconceptions. Three instructional strategies useful for changing student conceptions include (1) eliciting na?ve conceptions from students, (2) challenging nonscientific conceptions, and (3) emphasizing conceptual frameworks throughout instruction. In this paper, we describe a classroom discussion of the question “Are humans evolving?” that employs these three strategies for teaching students how natural selection operates. Our assessment of this activity shows that it successfully elicits students’ misconceptions and improves student understanding of natural selection. Seventy-eight percent of our students who began this exercise with misconceptions were able to partially or completely change their misconceptions by the end of this discussion. The course that this activity was part of also showed significant learning gains (d = 1.48) on the short form of the Conceptual Inventory of Natural Selection. This paper includes all the background information, data, and visual aids an instructor will need to implement this activity.     

Moral maps and medical imaginaries: clinical tourism at Malawi's College of Medicine

At an understaffed and underresourced urban African training hospital, Malawian medical students learn to be doctors while foreign medical students, visiting Malawi as clinical tourists on short-term electives, learn about “global health.” Scientific ideas circulate fast there; clinical tourists circulate readily from outside to Malawi but not the reverse; medical technologies circulate slowly, erratically, and sometimes not at all. Medicine's uneven globalization is on full display. I extend scholarship on moral imaginations and medical imaginaries to propose that students map these wards variously as places in which—or from which—they seek a better medicine. Clinical tourists, enacting their own moral maps, also become representatives of medicine “out there”: points on the maps of others. Ethnographic data show that for Malawians, clinical tourists are colleagues, foils against whom they construct ideas about a superior and distinctly Malawian medicine and visions of possible alternative futures for themselves.     

Happy Art

This article looks at how arts integration can boost the language development of limited English proficient students in kindergarten through second grade. I first review existing research on how young children learn and describe the special challenges faced by children who must learn in an unfamiliar language. I then identify arts-based mechanisms that boost the language development of limited English proficient students and examine strategies used by a successful urban arts-and-literacy program to enhance the language development of English language learners in the primary grades.     

基于BOPPPS的混合式教学模式在生物化学中的应用

随着互联网时代的到来,大规模开放式在线课程(慕课,MOOC)为教育改革提供了新的研究思路和方向。为了提高生物化学的学习效果,本文结合该课程知识点杂而多、理论性强和学生学习兴趣不高的特点,设计了一种基于BOPPPS教学的线上线下混合式教学模式,并在生物化学课程中进行了实践。BOPPPS中的情景案例激发了学生的学习兴趣,逐层递进的课堂练习让学生沉醉其中。研究结果表明,体验过混合式学习的学生与通过传统学习方式学习的学生相比,实验组学生对知识的理解深度明显好于对照组,在学习效果上也存在显著差异(P<0.05),试验组学生的平均成绩(81.13)比对照组学生的平均成绩(76.21)提升5分左右。问卷调查结果显示,与传统教学模式相比,学生更愿意接受新的教学模式,并愿意在未来的学期里支持继续使用新型的教学模式。学生认为,能从新的教学模式学到比传统的授课形式要多的知识,而且新的教学模式还促进了团队合作能力,提高了学生的学习兴趣,学生课前愿意花费较长时间自主预习。该方法激发了学生的学习主动性,促进了学生更好地学习。     

生物化学教学实用技巧和策略

生物化学是生命科学中最重要的基础专业课程之一。欲使教师讲好它,学生学好并非易事。在学生中经常流传着一句“生理生化,必有一挂”的口头禅,足见学生学习生物化学的难度。本文结合笔者在南京大学讲授生物化学25年多的实践及成功经验,与同行们分享生物化学的教学技巧和策略,如何上好第一次课,如何激发学生学习生物化学的兴趣,如何在教学中培养学生的科学思维,如何把传统课堂教学的手段与其他新型的教学方式结合,如何开展和组织“第二课堂”活动等,希望它们对同行们的生物化学教学有所启发和帮助。     

生物化学教学实用技巧和策略

生物化学是生命科学中最重要的基础专业课程之一。欲使教师讲好它,学生学好并非易事。在学生中经常流传着一句“生理生化,必有一挂”的口头禅,足见学生学习生物化学的难度。本文结合笔者在南京大学讲授生物化学25年多的实践及成功经验,与同行们分享生物化学的教学技巧和策略,如何上好第一次课,如何激发学生学习生物化学的兴趣,如何在教学中培养学生的科学思维,如何把传统课堂教学的手段与其他新型的教学方式结合,如何开展和组织“第二课堂”活动等,希望它们对同行们的生物化学教学有所启发和帮助。     

Walking the Walk to Teach the Talk: Implementing Ancestral Lifestyle Strategies as the Newest Tool in Evolutionary Studies

The learning of evolutionary theory typically takes place in the classroom or laboratory. Students of these traditional approaches often leave with the notion that applications of evolutionary theory have little bearing on their lives. The Evolutionary Studies Consortium (EvoS; ) has been extremely successful in overcoming these barriers and demonstrating the bridges across academic areas that can be created with the principles of evolution as a guide. While this is a fantastic means through which to educate students about the intricacies of evolution, we believe that the full potential of this approach has yet to be realized. Applications beyond strict academic contexts are still waiting to be mined. Here, we outline an approach that proposes the implementation of a nutrition and physical fitness program, alongside classroom pedagogy, as a means of helping students learn about evolution and how it can be used to increase their own quality of life.     

Enhancing Elementary Students’ Experiences Learning about Circuits Using an Exploration–Explanation Instructional Sequence

Using an exploration–explanation sequence of science instruction helps teachers unveil students’ prior knowledge about circuits and engage them in minds-on science learning. In these lessons, fourth grade students make predictions and test their ideas about circuits in series through hands-on investigations. The teacher helps students make connections between their hands-on experiences collecting data and new terms. This lesson shows how teachers can incorporate formative assessments such as checkpoints, self tests, and exit slips into the explanation phase of instruction so students can evaluate and self-monitor their understanding of circuits in series. These activities meet the National Science Education Standards for active, student-center learning environments that cultivate the critical thinking skills necessary to learn science.     

Utilizing Saccharomyces in the classroom: a versatile organism for teaching and learning

In the world of higher education, one of the struggles instructors face in the classroom is engaging students in the material. A second discussion in higher education pedagogy is how to weigh content versus activity in the science classroom. How should college teaching be set up when students now have every fact ever found at their fingertips on a device no larger than a half sandwich? What is the correct balance in the classroom between content/ knowledge and activity? As instructors grapple with these questions, a new type of learning experience called the Course Based Undergraduate Research Experience (CURE) has been developed, whereby students engage in an authentic research question in a classroom and laboratory setting. CUREs have been shown to be effective learning experiences for students but can be difficult to implement. Saccharomyces cerevisiae is a versatile and easy to use organism in the classroom that can be used for a wide variety of classroom activities. Described herein are a number of ways an instructor can use yeast in the classroom for authentic research experiences, especially focused towards a CURE.     

“因材施教”与“循序渐进”——微生物学教学中的“以人为本”教育观浅析

通过分析提出"因材施教"和"循序渐进"是"以人为本"教育观在高校人才培养过程中的具体贯彻和体现;结合微生物学教学实践,从"教"与"学"两个方面阐述了:课堂教学要以学生为中心因材施教,实施基于学生需求和认知能力的教学内容和方法;学生学习要循序渐进,发挥教师主导作用,建立实验与课堂协调促进机制,实现阶段性提高等具体措施,从而进一步阐明了全面落实"以人为本"教育观于微生物学教学的重要性和现实意义。     

Black greek-letter organizations 20: new directions in the study of african american fraternities and sororities

Diverse schools have become the norm throughout much of what is considered the West. Many urban classrooms feature few white European children but are located in nations dominated by Eurocentric epistemologies and discourses that oppress minority students by devaluing their cultures. Most European scholarship fails to analyse cultures of whiteness in educational settings. This paper addresses this gap by documenting cultural discourses of whiteness infusing a diverse primary school classroom in Amsterdam. Discourses reflecting white cultural norms of order, time, cleanliness, and Western and Christian superiority dominated a classroom containing only one white Dutch child. These discourses contribute to diverse students' explicit racialization while promoting the supremacy of white Dutch culture. They are both assimilationist and exclusionary, suggesting that many students, because of their backgrounds, will never be considered fully Dutch. Findings are of relevance to all nations dominated by white cultures with large populations of students of colour.     

Childrens' Understanding of the Classification of Living Organisms

This study investigated the effectiveness of three different instructional materials for learning how to identify fish at the species level in a blended classroom and out-of-classroom scenario. A sample of 195 first-year students of biology or geoecology at the University of Tuebingen participated in a course on identification of European freshwater fish species at a public aquarium. Prior to studying the species in the aquarium's fish tanks, students prepared themselves in a classroom nearby with one of three different learning materials: (1) preserved specimens and paper-based dichotomous identification keys; (2) digital videos; or (3) digital videos with preserved specimens and paper-based dichotomous identification keys. Students' acquisition of knowledge and their motivation were measured twice, once after preparing in the classroom and once after visiting the aquarium. Results showed that students who had prepared themselves with digital videos identified significantly more species correctly but were less motivated than those students who had learnt only with preserved specimens and dichotomous identification keys. When both instructional methods were combined students performed well in the post-tests and were motivated to learn, suggesting that the combination of both instructional approaches encourages motivation without any outcome losses.     

"Quit Talking and Learn English!": Conflicting Language Ideologies in an ESL Classroom

This article addresses the relationship between educational theory—as manifested in particular ideologies of teaching and learning—and classroom practice. Based on an ethnographic study of English-as-a-second-language (ESL) learning at a Canadian senior public school, I outline a conflict between two language ideologies that give shape to, and are shaped by, the classroom practices of the ESL teacher, his assistants, and the students. I discuss the implications of this ideological conflict in terms of the opportunities ESL students are given, and that they create for themselves, to practice speaking English. I end by outlining how these findings can be used to shape educational policy as it relates to ESL classroom curricula in order to create a more equitable learning environment for ESL students.