Recent Conferences

Atomic theory or the nature of matter is a principal concept in science and science education. This has, however, been complicated by the difficulty students have in learning the concept and the subsequent construction of many alternative models. To understand better the conceptual barriers to learning atomic structure, this study explores the troublesome nature of this fundamental scientific concept. In order to illustrate the distinction of student understanding by threshold barriers, this study chose three particularly high‐achieving students from an original interview sample of 20 students who were selected from an introductory college chemistry course. The pre‐course and post‐course interview responses were examined and compared in detail. This study considers the concepts of ‘probability’ and ‘energy quantization’ to both describe the structure of the threshold of understanding students’ need to negotiate in their construction of the target model of atomic structure. In this respect, this study suggests atomic structure as a possible threshold concept for further study in science. Identifying the nature and structure of the threshold of understanding confronting students, and analyzing the troublesomeness of atomic structure, provides valuable information for understanding student learning difficulties, and insight into how they may be addressed.     

Learning Visualization Strategies: A qualitative investigation

The following study investigates the range of strategies individuals develop to infer and interpret cross-sections of three-dimensional objects. We focus on the identification of mental representations and problem-solving processes made by 11 individuals with the goal of building training applications that integrate the strategies developed by the participants in our study. Our results suggest that although spatial transformation and perspective-taking techniques are useful for visualizing cross-section problems, these visual processes are augmented by analytical thinking. Further, our study shows that participants employ general analytic strategies for extended periods which evolve through practice into a set of progressively more expert strategies. Theoretical implications are discussed and five main findings are recommended for integration into the design of education software that facilitates visual learning and comprehension.     

Can Detroiters Dream Again? The Imagined Dialectics of Urban Decline in Anthony Bourdain’s Parts Unknown—Detroit

Examining the Detroit episode of Anthony Bourdain’s CNN show, Parts Unknown, this study illuminates how the collective memory of the American dream is ironically projected onto Detroit, the metonymic city of America past. In order to identify the nostalgia of the American dream narrated in the show, we apply the dialectical approach to intercultural communication suggested by Martin and Nakayama and propose the imagined dialectics. Throughout our analyses, we contend that the imagined dialectic narrated in the Parts Unknown episode nostalgically frames Detroit’s past, which inevitably fetishizes its present. We ultimately argue that the nostalgia of the American dream epitomizes the lack of an intercultural and interregional understanding within the US and prevents us from democratic discussion for the betterment of the urban lives.     

A scalable and adaptive method for finding semantically equivalent cue words of uncertainty

Scientific knowledge is constantly subject to a variety of changes due to new discoveries, alternative interpretations, and fresh perspectives. Understanding uncertainties associated with various stages of scientific inquiries is an integral part of scientists’ domain expertise and it serves as the core of their meta-knowledge of science. Despite the growing interest in areas such as computational linguistics, systematically characterizing and tracking the epistemic status of scientific claims and their evolution in scientific disciplines remains a challenge. We present a unifying framework for the study of uncertainties explicitly and implicitly conveyed in scientific publications. The framework aims to accommodate a wide range of uncertainty types, from speculations to inconsistencies and controversies. We introduce a scalable and adaptive method to recognize semantically equivalent cues of uncertainty across different fields of research and accommodate individual analysts’ unique perspectives. We demonstrate how the new method can be used to expand a small seed list of uncertainty cue words and how the validity of the expanded candidate cue words is verified. We visualize the mixture of the original and expanded uncertainty cue words to reveal the diversity of expressions of uncertainty. These cue words offer a novel resource for the study of uncertainty in scientific assertions.     

Rethinking the History of Education for Asian-American Children in California in the Second Half of the Nineteenth Century

This article brings to light discourses that constituted the education of Asian-American children in California in the second half of the nineteenth century. Guided by Foucaultian ideas and critical race theory, I analyze California public school laws, speeches of a governor-elect and a superintendent, and a report of the board of supervisors, from the 1860s to the 1880s. During this targeted period, the images and narratives of Asian-American children were inscribed with racism. Racializing politics rendered them to be disqualified from attending public schools. Segregated schooling for them was legally ordered and therefore unquestioned. It was a discursive practice implemented on their bodies by dint of a mechanism of a spatial division. This article reveals the shifting dominancy of discourses regarding Asian-American children. Rather than accepting the given historical facts, I intend to reread historical texts in order to rethink the education of Asian-American children through a Foucaultian encounter with critical race theory. Acknowledging different interpretations of the past events is a way of rethinking them and interrogating the history through the revelation of different histories in the education for Asian-American children.     

Student-generated questioning activity in second language courses using a customized personal response system: a case study

This case study reports on the implementation of student-generated questioning using a customized personal response system (PRS) by two groups of students in second language (L2) courses at a university in the United States. This study aimed to understand more about instructor and student experience with student-generated questioning for promoting student interaction in the L2 classroom, and sources for investigation included class observation, instructor interview, student survey, and pre/post-test. The results of this study indicated that the classroom interaction could be fostered through student-generated questioning with the support of PRS in L2 courses. In addition, there was a significant difference in students’ achievement between the pre- and post-test. The results are consistent with the findings of previous studies that student-generated questioning fosters collaborative interactions and increases frequency of student engagement. The results also suggest that the adoption of student-generate questioning with a technology support may result in promoting classroom interactions where the students are able to practice the target language through conversation with an instructor and peers.     

A typology of undergraduate students' conceptions of size and scale: Identifying and characterizing conceptual variation

The importance of “size and scale” in nanoscience and engineering has been recognized by both scientists and science educators. A solid understanding of this concept is key to the learning of nanoscience. Students, however, have been reported to have considerable difficulty grasping this concept; yet little is known regarding their state of understanding. To address this knowledge gap, we conducted a series of studies that were aimed at exploring the different ways students conceive of “size and scale” in the context of undergraduate nanoscience and engineering courses. Informed by Variation Theory of Learning (Marton and Booth, 1997), we identified four major categories (with two sub‐categories within each) of student conception—fragmented, linear, proportional, and logarithmic. These conception categories, together with the aspects of variation that characterize and distinguish them, are summarized in a typology. In addition to serving as a diagnostic tool to describe students' understanding, this typology can also be used to guide the development of instructional interventions that facilitate students to move toward a more sophisticated understanding of “size and scale.” © 2011 Wiley Periodicals, Inc., Inc. J Res Sci Teach 48: 512–533, 2011     

Korean wave: Enjoyment factors of Korean dramas in the U.S.

From a disposition theory perspective, successful dramas are driven by the development of strong dispositions towards characters. Thus, disposition theory logic is used to predict the enjoyment of American viewers when watching two different Korean dramas (Personal Preference and Secret Garden). The influence of sex, affective dispositions, empathy, open-mindedness, and past exposure to Korean culture on audience enjoyment is measured. The findings support the basic premise of disposition theory that the development of strong dispositions towards characters is needed in order to develop emotional responses necessary for successful dramas. Disposition theory can be used to explain viewing dispositions in order to predict enjoyment cross-culturally.     

The culturally gifted classroom: a sociocultural approach to the inclusive education of English language learners

The need for including English language learners in the regular classroom at all phases of their linguistic and cultural development is presented within a Vygotkian sociocultural theory of human development. Based on the social primacy of development within this theoretical tenet, all aspects of development are viewed to proceed from social interactions. Effective social interactions that lead to development are distinguished by a heterogeneous collective experience of all participants in the interaction. In accordance with the sociocultural perspective, the educational goal of this heterogeneous group is to acquire and use cultural tools deemed appropriate to their time and place. As others’ cultures and languages become rich resources for becoming competent in one’s own culture, the cultural and linguistic diversity gained by including all students in the classroom becomes a powerful source of development for all.