Constraints on conceptual development: a case study of the acquisition of folkbiological and folksociological knowledge in Madagascar

How different are the concepts held by children who grow up in a North American middle class neighborhood and by children who grow up in a rural Malagasy fishing village? By probing Malagasy children's and adults' conceptual representations of human and animal kind, biological inheritance, innate potential and family relations, the studies presented in this Monograph address current debates about the acquisition and the nature of concepts in the domains of folkbiology and folksociology. Cross-cultural and developmental studies of this kind bear on the hypothesis that conceptual development in these domains is supported and constrained by innate conceptual content. If so, one would expect cross-cultural universality in the relevant adult concepts and their early emergence in childhood regardless of widely different input conditions. We chose to conduct these studies among the Vezo of Madagascar because the ethnographic literature has attributed to them folkbiological and folksociological theories that are radically different, even in commensurable, with those of North American adults. Vezo therefore provide a challenging test for the innate conceptual constraints hypothesis.Four studies probed aspects of biological and sociological reasoning of Vezo children, adolescents and adults through a number of adoption scenarios. Despite ethnographic reports to the contrary, we found cross-cultural convergence in adult concepts of biological inheritance, but the pattern of development of this concept differed greatly from that seen in North America. Moreover, in agreement with the ethnographic literature, we found that Vezo adults have constructed a distinctive theory of social group identity. However, we found that children's reasoning in this domain is under the influence of endogenous constraints that are overturned in the course of development. Finally, we found cross-cultural convergence in adults' concept of species kind, as well as evidence for the early emergence of this concept. In light of these findings, we discuss the nature of the constraints on children's conceptual representations, the developmental process through which the adults' concepts are constructed, and relations between Vezotheories of folkbiology and folksociology.     

什么是“儿童心理理论”?——评儿童心理理论发展研究中的“概念混淆”

本文围绕什么是“儿童心理理论”的本质,对儿童心理理论发展研究中的一些关键概念进行了剖析,特别是致力于澄清当前研究中普遍存在的“概念混淆”问题。论文表明,明确儿童心理理论发展研究的概念基础,是推进和深化这一研究的方法论前提。     

Where Theories of Mind Meet Magic: The Development of Children's Beliefs about Wishing

In two studies, we probed children's beliefs about wishing. In Study 1, we gathered initial data on 50 3- to 6-year-old children's concepts of wishing and beliefs about its efficacy, with both a semistructured interview and a variety of tasks. Results revealed considerable knowledge about wishing in young children, along with an age-related decrease in beliefs about its efficacy. Parents were not found to encourage differently the beliefs of children at different ages, nor were they found to begin actively discouraging such beliefs at any particular age. A moderate relation was found between environmental supports for wishing and children's beliefs in its efficacy. In Study 2, we continued to probe these issues and also address the nature of the broader conceptual context in which children situate their beliefs about wishing. Participants were 92 3- to 6-year-old children. Results of this study suggest that children may reconcile beliefs in the efficacy of wishing with knowledge about everyday mental-physical relations by situating these beliefs more within their emerging beliefs about magic than within their theories of mind.     

Theory-based Correlations and Their Role in Children's Concepts

Recent accounts of conceptual development have emphasized the important role intuitive theories play in concept formation; however, it is still not clear exactly how these theories exert their influence. We present evidence that elementary school age children use theories to link together specific features associated with individual concepts. The results of our first experiment indicate that theory-based correlations play a prominent role in typicality judgments and in decisions about category membership. In a second experiment, we demonstrate that children's theories play an important role in determining which attributes will be considered most central to the concept. The results of these studies suggest that feature correlations can serve to link children's concepts with their intuitive theories of the world.     

The Comparative Effectiveness of Physical,Virtual, and Virtual-Physical Manipulatives on Third-Grade Students’ Science Achievement and Conceptual Understanding of Evaporation and Condensation

The purpose of this study was to investigate the relative effectiveness of experimenting with physical manipulatives alone, virtual manipulatives alone, and virtual preceding physical manipulatives (combination environment) on third-grade students’ science achievement and conceptual understanding in the domain of state changes of water, focusing on the concepts of evaporation and condensation. A pretest-posttest design was used that involved 208 third-grade students assigned to the three learning conditions. A science achievement test and a two-tier conceptual test were administered to students before and after a teaching intervention. The results revealed that using virtual preceding physical manipulatives and virtual manipulatives alone enhanced students’ knowledge gains about evaporation and condensation greater than the use of physical laboratory activities alone. It was also found that the combination environment promoted students’ knowledge gains about these concepts equally well as the use of virtual laboratory activities alone. On the other hand, the results showed that using virtual preceding physical manipulatives promoted students’ conceptual understanding most efficiently compared to the use of either physical or virtual manipulatives alone; in contrast, experimenting with physical manipulatives alone was least influential for students’ conceptual understanding compared to the other manipulatives.     

High school students' understanding of projectile motion concepts

The aim of this study was to investigate the effectiveness of conceptual change-based instruction and traditionally designed physics instruction on students' understanding of projectile motion concepts. Misconceptions related to projectile motion concepts were determined by related literature on this subject. Accordingly, the Projectile Motion Concepts Test was developed. The data were obtained through 43 students in an experimental group taught with learning activities based on conceptual change instruction and 39 students in a control group who followed traditional classroom instruction. The results showed that conceptual change-based instruction caused significantly better acquisition of conceptual change of projectile motion concepts than the traditional instruction.     

Learning through collaborative computer simulations

The author argues that computer-based simulations can help students to enhance their conceptual and intuitive understanding of theoretical concepts. Intuitive understanding of scientific concepts goes beyond conceptual understanding; attaining a sense of familiarity with ideas that cannot be directly experienced requires opportunities for student-directed activities and feedback on those activities in an environment that simulates the theory concerned. Computer-based simulations can offer these characteristics, but they still do not always achieve the intended enhancement in intuitive understanding. The author discusses evaluation studies of particular science simulations in order to draw conclusions about the design and implementation characteristics that contribute to the success of an educational simulation.     

Conceptually enhanced simulations: A computer tool for science teaching

In this paper, we consider a way computer simulations can be used to address the problem of teaching for conceptual change and understanding. After identifying three levels of understanding of a natural phenomenon (concrete, conceptual, and metaconceptual) that need to be addressed in school science, and classifying computer model systems and simulations more generally in terms of the design choices facing the programmer, we argue that there are ways to design computer simulations that can make them more powerful than laboratory models. In particular, computer simulations that provide an explicit representation for a set of interrelated concepts allow students to perceive what cannot be directly observed in laboratory experiments: representations for the concepts and ideas used for interpreting the experiment. Further, by embedding the relevant physical laws directly into the program code, these simulations allow for genuine discoveries. We describe how we applied these ideas in developing a computer simulation for a particular set of purposes: to help students grasp the distinction between mass and density and to understand the phenomenon of flotation in terms of these concepts. Finally, we reflect on the kinds of activities such conceptually enhanced simulations allow that may be important in bringing about the desired conceptual change.     

The evolution of a collaborative concept mapping activity for undergraduate microbiology students

Concept mapping activities were trialed over a 2 year period as part of an undergraduate microbiology course. This paper describes this developmental process and offers insight into the most beneficial ways of employing this tool in a higher education setting. The aim was to investigate the use of mapping activities to improve students' integration of the material presented and as a method of course evaluation. It was found that the emphasis placed on concepts at the beginning of the course had a profound influence on the trajectory of conceptual development exhibited by students. Once established, initial conceptual structures seemed resistant to change and restricted the subsequent choice of superordinate concepts. The approach was modified in the second year. Students were encouraged to restructure their understanding by producing a concept map as part of a collaborative group. The concept labels were prescribed and excluded the terminology that had appeared to constrain conceptual development in the previous year. Findings suggest that in order to optimize concept mapping activities they should: (1) reflect a student‐centred teaching philosophy; (2) be collaborative; (3) be given sufficient time for reflection and development; (4) avoid using specific terms that restrict conceptual development by hindering appropriate switching between opposing conceptual frameworks. Linking the mapping activity to course grades provided an extrinsic motivation for active engagement in the task.     

幼儿早期阅读活动指导策略

幼儿早期阅读潜能的开发对于个人阅读能力的发展具有重要的意义。分析当前幼儿园内阅读中存在的误区,研究幼儿早期阅读的实施策略,可以帮助幼儿园走出阅读误区,建立正确的阅读理念,提升早期阅读教育的质量。     

Where Is the Essence? Developmental Shifts in Children’s Beliefs About Internal Features

The present studies investigated children's and adults' intuitive beliefs about the physical nature of essences. Adults and children (ranging in age from 6 to 10 years old) were asked to reason about 2 different ways of determining an unknown object's category: taking a tiny internal sample from any part of the object (distributed view of essence) or taking a sample from one specific region (localized view of essence). Results from 3 studies indicated that adults strongly endorsed the distributed view, and children showed a developmental shift from a localized to distributed view with increasing age. These results suggest that even children go beyond mere placeholder notions of essence, committing to conceptual frameworks of how essences might be physically instantiated.     

Educational implications and the changing role of accountants: a conceptual approach to accounting education

Professional accrediting bodies and accounting education reviews have long expressed concerns about student capabilities and learning outcomes, including the ability to apply knowledge and make reasoned judgements. In response, we report on a new design that uses a web of threshold concepts to guide curriculum development. With an associated focus on students’ active learning, the new design encouraged students to critically engage with threshold concepts in accounting. The aim was to transform their understanding of the discipline material from a set of discrete concepts that could be rote-learnt, to critical appreciation of the relationships between such discipline concepts. The design structures students’ active participation in associated learning activities, leading to improved student engagement and conceptual understanding, as evidenced by better attendance and results.     

Developmentally Appropriate Career Guidance: Building Concepts to Last a Lifetime

Many young children have very limited knowledge about the world of work. Yet, because work-readiness concepts and competencies are built over time, career decisions made by young adults have their roots in early childhood. Developmentally appropriate career guidance considers not only the age of each child but also his or her talents, needs, and cultural antecedents. Objectives for working with young children include increasing children's occupational awareness and exploration, enhancing their knowledge of self and others, and continuing their development of academic and work-related competencies. By infusing work-readiness activities throughout the curriculum, teachers can help children to build strong concepts that support the decisions they must make a decade or more in the future.     

Ghosts in the Curriculum—Reframing Concepts as Multiplicities

Contemporary curricula specify the conceptual understanding that will be important for pupils in the world that they will soon inhabit. In so doing, concepts are characterised as representing the essential qualities of phenomena, the knowledge of which will be applicable in future contexts. Yet such a characterisation divorces concepts from the here and now, and from the detail of the activities and problems presented to learners in classrooms. I argue that there is a category error inherent in the way that the spectres of conceptual understanding are assumed to emerge from the unique circumstances of educational practice. This error has a long heritage which spans from Aristotle's essentialism to cognitivist theories of learning. I will show that this category error is sustaining an unnecessary separation between knowledge and learning in contemporary debates about curriculum, pedagogy and assessment. Deleuze's notion of multiplicity offers an alternative characterisation, making a single curricular concept synonymous with the many, unique manifestations of that concept in the world. Seeing concepts as multiplicities allows us to recognise that curricular concepts themselves, and the conceptual understandings of individuals, are in a process of continual becoming. Concepts are dynamic and emergent from unique circumstances, yet allow shared understanding and assessment. Exorcising the supernatural view of concepts from contemporary debates in education is an affirmative first step in developing a more specific account of learning.     

The intertextuality of children's explanations in a technology-enriched early years science classroom

This study examines the sociocultural trajectories of children's conceptual thinking in a technology-enriched early years science classroom (N=22). Of specific analytic interest is the intertextuality of children's science-related explanations constructed during adult–child dialogic interviews and peer-centred inquiry around a multimedia science-learning tool, PICCO. Following the sociocultural and discursive approach to conceptual thinking and learning, the study conceptualizes explanations as interactional achievements shaped by the sociocultural context of activity. Qualitative, micro-level analysis of video-taped and transcribed data covering a 5-month period shows that inquiry-based science learning activities, based on child-initiation and the application of technological tools, created a fruitful setting for the children's explanation construction around scientific phenomena. The children's explanations were found to draw on textual and material links, hands-on explorations, i.e. activity links, as well as on recounting events. These intertextual linkages functioned as tools for the children (a) to share and validate previous experiences as sources of knowledge, (b) to establish reciprocity with each other in meaning-making, (c) to define themselves as learners of science and as individuals with specific experiences and background, and (d) to construct, maintain and contest the cultural practices of what it means to do and learn science in the classroom. In all, the study illuminates the potential of intertextual analysis to reveal contextual insights into children's conceptual thinking mediated by the sociocultural context.     

Mexican-American and Anglo-American Children's Responsiveness to a Theory-Centered AIDS Education Program

Third, fifth, and seventh graders, most of them Mexican-American, were exposed to an empirically based and culturally sensitive AIDS curriculum designed to replace their intuitive theories with a coherent, scientific account of the causal processes that lead from risk behavior to AIDS symptomatology. Compared to students in control classes, experimental students knew more about AIDS risk factors and AIDS generally, displayed more conceptual understanding of the causes of AIDS and flu, and were more willing to interact with people who have AIDS (although not less worried about AIDS) at posttest and typically at follow-up 10–11 months later. The findings point to the potential value of adopting an intuitive theories approach in assessing and modifying children's concepts of health and illness and suggest, contrary to Piagetian formulations, that even relatively young children can, with appropriate instruction, grasp scientific theories of disease.     

A window into thinking: Using student writing to understand conceptual change in science learning

This study, conducted in an inner-city middle school, followed the conceptual changes shown in 25 students' writing over a 12-week science unit. Conceptual changes for 6 target students are reported. Student understanding was assessed regarding the nature of matter and physical change by paper-and-pencil pretest and posttest. The 6 target students were interviewed about the goal concepts before and after instruction. Students' writing during lesson activities provided qualitative data about their understandings of the goal concepts across the science unit. The researcher constructed concept maps from students' written statements and compared the maps across time to assess changes in the schema of core concepts, complexity, and organization as a result of instruction. Target students' changes were studied in detail to determine patterns of conceptual change. After patterns were located in target students' maps, the remaining 19 students' maps were analyzed for similar patterns. The ideas that students identified in their writing showed changes in central concepts, complexity, and organization as the lessons progressed. When instructional events were analyzed in relation to students' demonstrated ideas, understanding of the goal conceptions appeared in students' writing more often when students had opportunities to explain their new ideas orally and in writing.     

A Conceptual Analysis of Evolutionary Theory for Teacher Education

In this paper we present a schematic overview of the central concepts in evolutionary theory, setting them off against the background of widespread misconceptions about them. Our aim is to provide high school teachers with (1) an overview of those particular concepts that they can expect students to have difficulties with, (2) a comparison of students’ alternative conceptions with the corresponding accepted scientific concepts and (3) some recommendations for teaching these concepts. We aim to improve the learning and teaching of evolution by making the relevant conceptual debates within the fields of history and philosophy of science more accessible to science teachers. We intended this conceptual analysis to be of use as a teaching tool for in-service teachers, as well as biology teachers in training.