Peter W. Hewson

Bio: Peter W. Hewson is an academic researcher from University of Wisconsin-Madison. The author has contributed to research in topics: Science education & Conceptual change. The author has an hindex of 27, co-authored 46 publications receiving 8834 citations. Previous affiliations of Peter W. Hewson include Cornell University & Wisconsin Center for Education Research.

Accommodation of a scientific conception: Toward a theory of conceptual change

Abstract: It has become a commonplace belief that learning is the result of the interaction between what the student is taught and his current ideas or concepts.’ This is by no means a new view of learning. Its roots can be traced back to early Gestalt psychologists. However, Piaget’s (1929, 1930) early studies of children’s explanations of natural phenomena and his more recent studies of causality (Piaget, 1974) have perhaps had the greatest impact on the study of the interpretive frameworks students bring to learning situations. This research has led to the widespread study of students’ scientific misconceptions.2 From these studies and, particularly, from recent work by researchers such as Viennot ( 1979) and Driver (1 973), we have developed a more detailed understanding of some of these misconceptions and, more importantly, why they are so “highly robust” and typically outlive teaching which contradicts them (Viennot, 1979, p. 205). But identifying misconceptions or, more broadly speaking, “alternative frameworks” (Driver & Easley, 1978), and understanding some reasons for their persistence, falls short of developing a reasonable view of how a student’s current ideas interact with new, incompatible ideas. Although Piaget (1974) developed one such theory, there appears to be a need for work which focuses “more on the actual content of the pupil’s ideas and less on the supposed underlying logical structures” (Driver & Easley, 1978, p. 76). Several research studies have been performed (Nussbaum, 1979; Nussbaum & Novak, 1976; Driver, 1973; Erickson, 1979) which have investigated “the substance of the actual beliefs and concepts held by children” (Erickson, 1979, p. 221). However, there has been no well-articulated theory explaining or describing the substantive dimensions of the process by which people’s central, organizing concepts change from one set of concepts to another set, incompatible with the first. We believe that a major source of hypotheses concerning this issue is contemporary philosophy of science, since a central question of recent philosophy of science is how concepts change under the impact of new ideas or new information. In this article we first sketch a general model of conceptual change which is largely derived from current philosophy of science, but which we believe can illuminate * This article is partly based on a paper entitled “Learning Special Relativity: A Study of Intellectual Problems Faced by College Students,” presented at the International Conference Celebrating the 100th Anniversary of Albert Einstein, November 8-10, 1979 at Hofstra University.

A Conceptual Change Approach to Learning Science

Abstract: Summaries English Learning science is complex‐‐a student has at different times to acquire new information, reorganize existing knowledge and even discard cherished ideas. In addressing this issue, the analogy between individual learning and conceptual change in scientific disciplines has been fruitful in providing aspects of a suitableframework for analysing science learning. In this paper a model of learning as conceptual change is developed. It investigates the conditions under which an individual holding a set of conceptions of natural phenomena, when confronted by new experiences will either keep his or her conceptions substantially unaltered in the process of incorporating these experiences, or have to replace them because of their inadequacy. The model illuminates the importance of addressing an individual's existing conceptions. It also pinpoints the importance of an individual's metaphysical commitments in influencing scientific learning.

The role of conceptual conflict in conceptual change and the design of science instruction

Abstract: Conceptual conflict has long been recognized as a factor that could facilitate student learning. Due, however, to the lack of a convincing explanation of why it occurs, and how it can be resolved, it has seldom been used in instructional design. Its potential use in instruction is particularly relevant in the light of the recent, well-documented finding that students' existing conceptions frequently constitute a barrier to effective learning. This article examines conceptual conflict in the light of an epistemological model of learning as conceptual change. This analysis shows that the conceptual change model provides an explanation of conceptual conflict which is sufficiently detailed to allow it to be used in the design of instruction. The results of two studies, the first of which addressed the concepts of mass, volume, and density, and the second, the concept of speed, show that instruction, designed in this way, is effective in changing students' existing conceptions.

Effect of instruction using students' prior knowledge and conceptual change strategies on science learning.

Abstract: One of the factors affecting students' learning in science is their existing knowledge prior to instruction. The students' prior knowledge provides an indication of the alternative conceptions as well as the scientific conceptions possessed by the students. This study is concerned primarily with students' alternative conceptions and with instructional strategies to effect the learning of scientific conceptions; i.e., to effect conceptual change from alternative to scientific conceptions. The conceptual change model used here suggests conditions under which alternative conceptions can be replaced by or differentiated into scientific conceptions and new conceptions can be integrated with existing conceptions. The instructional strategy and materials were developed for a particular student population, namely, black high school students in South Africa, using their previously identified prior knowledge (conceptions and alternative conceptions) and incorporate the principles for conceptual change. The conceptions involved were mass, volume, and density. An experimental group of students was taught these concepts using the special instructional strategy and materials. A control group was taught the same concepts using a traditional strategy and materials. Pre- and posttests were used to assess the conceptual change that occurred in the experimental and control groups. The results showed a significantly larger improvement in the acquisition of scientific conceptions as a result of the instructional strategy and materials which explicitly dealt with student alternative conceptions.

The conditions of conceptual change in the classroom

Abstract: The conceptual change model has two major components: the conditions that need to be satisfied for a person to experience conceptual change and the person's conceptual ecology that provides the context in which the conceptual change occurs. A literature review shows that the conditions have been used to analyse interview data and to plan instruction but not to interpret interactions in the classroom. An analysts of the ways in which students can and do produce evidence of meeting conditions shows that this only happens when they are able to monitor and comment on the scientific content of their conceptions. Implications that this conclusion has for classroom teaching are considered.

Teachers’ Beliefs and Educational Research: Cleaning Up a Messy Construct:

Abstract: Attention to the beliefs of teachers and teacher candidates should be a focus of educational research and can inform educational practice in ways that prevailing research agendas have not and cannot. The difficulty in studying teachers’ beliefs has been caused by definitional problems, poor conceptualizations, and differing understandings of beliefs and belief structures. This article examines the meaning prominent researchers give to beliefs and how this meaning differs from that of knowledge, provides a definition of belief consistent with the best work in this area, explores the nature of belief structures as outlined by key researchers, and offers a synthesis of findings about the nature of beliefs. The article argues that teachers’ beliefs can and should become an important focus of educational inquiry but that this will require clear conceptualizations, careful examination of key assumptions, consistent understandings and adherence to precise meanings, and proper assessment and investigation of spec...

Technological Pedagogical Content Knowledge: A Framework for Teacher Knowledge

Abstract: Research in the area of educational technology has often been critiqued for a lack of theoretical grounding. In this article we propose a conceptual framework for educational technology by building on Shulman’s formulation of ‘‘pedagogical content knowledge’’ and extend it to the phenomenon of teachers integrating technology into their pedagogy. This framework is the result of 5 years of work on a program of research focused on teacher professional development and faculty development in higher education. It attempts to capture some of the essential qualities of teacher knowledge required for technology integration in teaching, while addressing the complex, multifaceted, and situated nature of this knowledge. We argue, briefly, that thoughtful pedagogical uses of technology require the development of a complex, situated form of knowledge that we call Technological Pedagogical Content Knowledge (TPCK). In doing so, we posit the complex roles of, and interplay among, three main components of learning environments: content, pedagogy, and technology. We argue that this model has much to offer to discussions of technology integration at multiple levels: theoretical, pedagogical, and methodological. In this article, we describe the theory behind our framework, provide examples of our teaching approach based upon the framework, and illustrate the methodological contributions that have resulted from this work.

Qualitative research for education: An introduction to theories and methods

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Self-Efficacy Beliefs in Academic Settings

Abstract: The purpose of this article is to examine the contribution made by the self-efficacy component of Bandura’s (1986) social cognitive theory to the study of self-regulation and motivation in academic settings. The difference between self-efficacy beliefs and other expectancy constructs is first explained, followed by a brief overview of problems in self-efficacy research. Findings on the relationship between self-efficacy, motivation constructs, and academic performances are then summarized. These findings demonstrate that particularized measures of self-efficacy that correspond to the criterial tasks with which they are compared surpass global measures in the explanation and prediction of related outcomes. The conceptual difference between the definition and use of expectancy beliefs in social cognitive theory and in expectancy value and self-concept theory is then clarified. Last, strategies to guide future research are offered.

Teacher Pedagogical Beliefs: The Final Frontier in Our Quest for Technology Integration?.

Abstract: Although the conditions for successful technology integration finally appear to be in place, including ready access to technology, increased training for teachers, and a favorable policy environment, high-level technology use is still surprisingly low. This suggests that additional barriers, specifically related to teachers’ pedagogical beliefs, may be at work. Previous researchers have noted the influence of teachers’ beliefs on classroom instruction specifically in math, reading, and science, yet little research has been done to establish a similar link to teachers’ classroom uses of technology. In this article, I argue for the importance of such research and present a conceptual overview of teacher pedagogical beliefs as a vital first step. After defining and describing the nature of teacher beliefs, including how they are likely to impact teachers’ classroom practice, I describe important implications for teacher professional development and offer suggestions for future research.